From dc71e058599ea530737ce069f2b8779af0633829 Mon Sep 17 00:00:00 2001
From: WPT Sync Bot <josh+wptsync@joshmatthews.net>
Date: Sat, 30 Nov 2019 08:24:23 +0000
Subject: [PATCH] Update web-platform-tests to revision
 3503c50a6452e153bde906a9c6644cb6237224fc

---
 .../url/url-in-tags-revoke.window.js.ini      |    4 -
 .../FileAPI/url/url-with-fetch.any.js.ini     |    3 +
 tests/wpt/metadata/MANIFEST.json              | 2356 ++++++++---------
 .../floats-in-table-caption-001.html.ini      |    2 +
 .../line-height-interpolation.html.ini        |  841 +++++-
 .../visibility-interpolation.html.ini         |  244 +-
 .../column-gap-interpolation.html.ini         |  469 +++-
 .../animation/row-gap-interpolation.html.ini  |  469 +++-
 .../background-color-interpolation.html.ini   |  397 ++-
 .../background-image-interpolation.html.ini   |  556 +++-
 ...background-position-interpolation.html.ini |  148 +-
 ...und-position-origin-interpolation.html.ini |  211 +-
 ...ckground-position-x-interpolation.html.ini |  286 +-
 ...ckground-position-y-interpolation.html.ini |  286 +-
 .../background-size-interpolation.html.ini    |  733 ++++-
 .../border-color-interpolation.html.ini       |  346 ++-
 ...border-image-outset-interpolation.html.ini |  394 ++-
 ...age-slice-interpolation-stability.html.ini |    4 +
 .../border-image-slice-interpolation.html.ini |  778 +++++-
 ...border-image-source-interpolation.html.ini |  547 +++-
 .../border-image-width-interpolation.html.ini |  949 ++++++-
 .../border-radius-interpolation.html.ini      |  487 +++-
 .../border-width-interpolation.html.ini       |  643 ++++-
 .../box-shadow-interpolation.html.ini         |  634 ++++-
 .../animation/color-interpolation.html.ini    |  265 +-
 .../animation/opacity-interpolation.html.ini  |  280 +-
 .../flex-basis-interpolation.html.ini         |  310 ++-
 .../flex-grow-interpolation.html.ini          |  352 ++-
 .../flex-shrink-interpolation.html.ini        |  364 ++-
 .../animation/order-interpolation.html.ini    |  427 ++-
 .../font-size-adjust-interpolation.html.ini   |  589 ++++-
 .../font-size-interpolation-001.html.ini      |  355 ++-
 .../font-size-interpolation-002.html.ini      |   70 +-
 .../font-size-interpolation-003.html.ini      |   70 +-
 ...-variation-settings-interpolation.html.ini |  865 +++++-
 .../standard-font-family-19.html.ini          |    2 +
 .../standard-font-family-20.html.ini          |    2 +
 .../object-position-interpolation.html.ini    |  637 ++++-
 .../letter-spacing-interpolation.html.ini     |  355 ++-
 .../text-indent-interpolation.html.ini        |  610 ++++-
 .../word-spacing-interpolation.html.ini       |  355 ++-
 .../line-break/line-break-normal-018.xht.ini  |    2 +
 .../line-break/line-break-strict-018.xht.ini  |    2 +
 .../trailing-ideographic-space-004.html.ini   |    2 +
 .../animation/list-interpolation.html.ini     |  220 +-
 .../animation/matrix-interpolation.html.ini   |   13 +-
 .../perspective-interpolation.html.ini        |    2 +-
 .../perspective-origin-interpolation.html.ini |  322 ++-
 .../animation/rotate-interpolation.html.ini   |  886 ++++++-
 .../animation/scale-interpolation.html.ini    |  952 ++++++-
 .../transform-interpolation-001.html.ini      | 1081 +++++++-
 .../transform-interpolation-002.html.ini      |  553 +++-
 .../transform-interpolation-003.html.ini      |  439 ++-
 .../transform-interpolation-004.html.ini      |  781 +++++-
 .../transform-interpolation-005.html.ini      |  901 ++++++-
 .../transform-interpolation-006.html.ini      |  235 +-
 .../transform-origin-interpolation.html.ini   |  466 +++-
 .../translate-interpolation.html.ini          | 1048 +++++++-
 .../text-shadow-interpolation.html.ini        |  352 ++-
 .../vertical-align-interpolation.html.ini     |  349 ++-
 .../animations/z-index-interpolation.html.ini |  421 ++-
 .../caret-color-interpolation.html.ini        |  529 +++-
 .../outline-color-interpolation.html.ini      |  265 +-
 .../outline-offset-interpolation.html.ini     |  295 ++-
 .../outline-width-interpolation.html.ini      |  361 ++-
 .../animations/calc-interpolation.html.ini    |  298 +++
 .../matchMedia-display-none-iframe.html.ini   |    2 +
 ...backdrop-filter-interpolation-001.html.ini |  781 +++++-
 ...backdrop-filter-interpolation-002.html.ini |  205 +-
 ...backdrop-filter-interpolation-003.html.ini |  565 +++-
 ...backdrop-filter-interpolation-004.html.ini |  601 ++++-
 .../filter-interpolation-001.html.ini         |  358 ++-
 .../filter-interpolation-002.html.ini         |  355 ++-
 .../filter-interpolation-003.html.ini         |  655 ++++-
 .../filter-interpolation-004.html.ini         |  445 +++-
 .../cors/cors-preflight-redirect.any.js.ini   |   60 -
 .../fetch/content-type/response.window.js.ini |   20 +-
 .../fetch/content-type/script.window.js.ini   |    3 -
 .../metadata/navigation.https.sub.html.ini    |    2 -
 .../navigation.tentative.https.sub.html.ini   |    2 +
 ...e-prefetch.optional.tentative.sub.html.ini |    5 +
 ...e-prefetch.optional.tentative.sub.html.ini |    5 +
 ...e-prefetch.optional.tentative.sub.html.ini |    5 +
 .../nosniff/parsing-nosniff.window.js.ini     |    3 +
 .../traverse_the_history_1.html.ini           |    4 +
 .../traverse_the_history_4.html.ini           |    4 -
 ...creating_browsing_context_test_01.html.ini |    3 +-
 .../embedded-opener-remove-frame.html.ini     |    1 -
 .../iframe_sandbox_popups_escaping-1.html.ini |    3 +-
 .../iframe_sandbox_popups_escaping-3.html.ini |    3 +-
 ...rame_sandbox_popups_nonescaping-1.html.ini |    3 +-
 .../non-active-document.html.ini              |    4 +
 .../infinite_backtracking.html.ini            |    4 +
 .../form-double-submit-3.html.ini             |    2 +-
 .../form-double-submit.html.ini               |    2 +-
 .../parsing/DOMContentLoaded-defer.html.ini   |    4 +
 .../the-offscreen-canvas/size.large.html.ini  |    2 +
 .../webmessaging/with-ports/017.html.ini      |    5 -
 .../webmessaging/without-ports/017.html.ini   |    5 -
 .../webmessaging/without-ports/018.html.ini   |    5 +
 .../Worker/Worker-constructor.html.ini        |    2 -
 .../web-platform-tests/.azure-pipelines.yml   |    9 +-
 .../.github/workflows/manifest.yml            |    2 +
 tests/wpt/web-platform-tests/.taskcluster.yml |  411 +--
 .../accept_ch.tentative.https.html            |   22 +-
 .../http_equiv_accept_ch.tentative.https.html |   17 +-
 ...ompression-corrupt-input.tentative.any.js} |    0
 .../conformance-checkers/messages.json        |    2 +-
 .../image-pseudo-element-content-dpr-ref.html |   12 +
 .../image-pseudo-element-content-dpr.html     |   17 +
 ...ntent-dpr-and-explicit-dimensions-ref.html |   10 +
 ...h-content-dpr-and-explicit-dimensions.html |   12 +
 .../image-with-dpr-header.html                |    0
 .../content-dpr/resources/background.png      |  Bin 0 -> 86 bytes
 .../resources/dpr.py                          |    0
 .../content-dpr/resources/square.png          |  Bin 0 -> 18299 bytes
 ...background-image-with-content-dpr-ref.html |   29 +
 ...led-background-image-with-content-dpr.html |   27 +
 ...scriptions_empty.tentative.https.window.js |   13 +
 .../resources/always_changing_sw.sub.js       |    6 +
 ...serviceworker_cookieStore_subscriptions.js |   65 +-
 ...eworker_cookieStore_subscriptions_basic.js |   45 +-
 ...eworker_cookieStore_subscriptions_empty.js |   16 +-
 ...re_subscriptions_eventhandler_attribute.js |   20 +-
 ...rker_cookieStore_subscriptions_mismatch.js |   20 +-
 ...ker_cookieStore_subscriptions_reset.sub.js |   24 -
 ...e_subscriptions_reset.tentative.https.html |   42 +-
 ...line-negative-margin-minmax-crash-001.html |   19 +
 .../background-image-interpolation.html       |   99 +-
 ...r-image-slice-interpolation-stability.html |   24 +
 .../css/css-break/fieldset-001-ref.html       |   55 +
 .../css/css-break/fieldset-001.html           |   46 +
 .../tall-break-inside-avoid-at-start.html     |   10 +
 .../animations/display-interpolation.html     |   47 +
 .../standard-font-family-17-notref.html       |   11 +
 .../css-fonts/standard-font-family-17.html    |   14 +
 .../standard-font-family-18-notref.html       |   17 +
 .../css-fonts/standard-font-family-18.html    |   20 +
 .../standard-font-family-19-notref.html       |   11 +
 .../css-fonts/standard-font-family-19.html    |   14 +
 .../css-fonts/standard-font-family-2-ref.html |    1 +
 .../css/css-fonts/standard-font-family-2.html |    1 +
 .../standard-font-family-20-notref.html       |   11 +
 .../css-fonts/standard-font-family-20.html    |   20 +
 .../css-fonts/standard-font-family-6-ref.html |    1 +
 .../css/css-fonts/standard-font-family-6.html |    5 +
 .../css-fonts/standard-font-family-7-ref.html |   10 +
 .../css/css-fonts/standard-font-family-7.html |   10 +
 .../css-fonts/standard-font-family-ref.html   |    1 +
 .../css/css-fonts/standard-font-family.html   |    1 +
 .../list-style-image-interpolation.html       |  147 +
 .../css/css-lists/resources/blue-20.png       |  Bin 0 -> 126 bytes
 .../css/css-lists/resources/green-20.png      |  Bin 0 -> 137 bytes
 .../css/css-lists/resources/stripes-20.png    |  Bin 0 -> 156 bytes
 .../animations/mask-image-interpolation.html  |  180 ++
 .../css/css-masking/resources/blue-20.png     |  Bin 0 -> 126 bytes
 .../css/css-masking/resources/green-20.png    |  Bin 0 -> 137 bytes
 .../css/css-masking/resources/stripes-20.png  |  Bin 0 -> 156 bytes
 .../css/css-multicol/equal-gap-and-rule.html  |    8 +
 .../css-pseudo/first-line-and-marker-ref.html |   28 +
 .../css/css-pseudo/first-line-and-marker.html |   32 +
 .../parsing/marker-supported-properties.html  |    2 +-
 .../scroll-snap-stop-change.html              |   21 +-
 .../direction-rtl.html                        |   49 +
 .../snap-after-initial-layout-ref.html        |   20 +
 .../writing-mode-horizontal-tb.html           |   50 +
 .../writing-mode-vertical-lr.html             |   50 +
 .../writing-mode-vertical-rl.html             |   53 +
 .../adding-only-snap-area.html                |   55 +
 .../adding-snap-area-while-snapped.html       |   66 +
 .../move-current-target.html                  |  118 +
 .../remove-current-target.html                |   65 +
 .../snap-to-different-targets.html            |   92 +
 ...-area-capturing-add-scroll-container.html} |   12 +-
 ...rea-capturing-remove-scroll-container.html |   12 +-
 .../intrinsic-size-001-ref.html               |   14 -
 .../intrinsic-size/intrinsic-size-001.html    |   16 -
 .../intrinsic-size-002-ref.html               |   21 -
 .../intrinsic-size/intrinsic-size-002.html    |   22 -
 .../intrinsic-size-003-ref.html               |   15 -
 .../intrinsic-size/intrinsic-size-003.html    |   17 -
 .../intrinsic-size-004-ref.html               |   15 -
 .../intrinsic-size/intrinsic-size-004.html    |   17 -
 .../intrinsic-size-005-ref.html               |   15 -
 .../intrinsic-size/intrinsic-size-005.html    |   17 -
 .../intrinsic-size-006-ref.html               |   16 -
 .../intrinsic-size/intrinsic-size-006.html    |   16 -
 .../intrinsic-size-007-ref.html               |   27 -
 .../intrinsic-size/intrinsic-size-007.html    |   26 -
 .../intrinsic-size-008-ref.html               |   37 -
 .../intrinsic-size/intrinsic-size-008.html    |   37 -
 .../intrinsic-size-009-ref.html               |   23 -
 .../intrinsic-size/intrinsic-size-009.html    |   23 -
 .../intrinsic-size-010-ref.html               |   39 -
 .../intrinsic-size/intrinsic-size-010.html    |   40 -
 .../intrinsic-size-011-ref.html               |   39 -
 .../intrinsic-size/intrinsic-size-011.html    |   40 -
 .../intrinsic-size-012-ref.html               |   14 -
 .../intrinsic-size/intrinsic-size-012.html    |   15 -
 .../intrinsic-size-013-ref.html               |   18 -
 .../intrinsic-size/intrinsic-size-013.html    |   32 -
 .../intrinsic-size-014-ref.html               |   18 -
 .../intrinsic-size/intrinsic-size-014.html    |   19 -
 .../intrinsic-size-015-ref.html               |   16 -
 .../intrinsic-size/intrinsic-size-015.html    |   17 -
 .../intrinsic-size-016-ref.html               |   39 -
 .../intrinsic-size/intrinsic-size-016.html    |   41 -
 .../intrinsic-size-017-ref.html               |   17 -
 .../intrinsic-size/intrinsic-size-017.html    |   20 -
 .../intrinsic-size-018-ref.html               |   15 -
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 .../intrinsic-size-019-ref.html               |   15 -
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 .../intrinsic-size-020-ref.html               |   14 -
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 .../intrinsic-size-021-ref.html               |   41 -
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 .../intrinsic-size-022-ref.html               |   30 -
 .../intrinsic-size/intrinsic-size-022.html    |   31 -
 .../intrinsic-size-023-ref.html               |   29 -
 .../intrinsic-size/intrinsic-size-023.html    |   30 -
 .../intrinsic-size-024-ref.html               |   30 -
 .../intrinsic-size/intrinsic-size-024.html    |   31 -
 .../intrinsic-size-025-ref.html               |   56 -
 .../intrinsic-size/intrinsic-size-025.html    |   57 -
 .../intrinsic-size-026-ref.html               |   53 -
 .../intrinsic-size/intrinsic-size-026.html    |   61 -
 .../intrinsic-size-with-auto-001-ref.html     |   37 -
 .../intrinsic-size-with-auto-001.html         |   34 -
 .../intrinsic-size-with-auto-002-ref.html     |   30 -
 .../intrinsic-size-with-auto-002.html         |   34 -
 .../intrinsic-size-with-auto-003-ref.html     |   37 -
 .../intrinsic-size-with-auto-003.html         |   32 -
 .../intrinsic-size-with-legacy-001-ref.html   |   15 -
 .../intrinsic-size-with-legacy-001.html       |   17 -
 .../intrinsic-size-with-legacy-002-ref.html   |   41 -
 .../intrinsic-size-with-legacy-002.html       |   39 -
 .../intrinsic-size-with-legacy-003-ref.html   |   20 -
 .../intrinsic-size-with-legacy-003.html       |   20 -
 .../intrinsic-size-with-legacy-004-ref.html   |   25 -
 .../intrinsic-size-with-legacy-004.html       |   22 -
 .../intrinsic-size-with-legacy-005-ref.html   |   36 -
 .../intrinsic-size-with-legacy-005.html       |   44 -
 .../intrinsic-size-with-legacy-006-ref.html   |   35 -
 .../intrinsic-size-with-legacy-006.html       |   43 -
 .../intrinsic-size-with-legacy-007-ref.html   |   35 -
 .../intrinsic-size-with-legacy-007.html       |   43 -
 .../intrinsic-size-with-legacy-008-ref.html   |   80 -
 .../intrinsic-size-with-legacy-008.html       |   87 -
 .../intrinsic-block-size-computed.html        |   30 -
 .../parsing/intrinsic-block-size-invalid.html |   21 -
 .../parsing/intrinsic-block-size-valid.html   |   22 -
 .../parsing/intrinsic-height-computed.html    |   30 -
 .../parsing/intrinsic-height-invalid.html     |   21 -
 .../parsing/intrinsic-height-valid.html       |   22 -
 .../intrinsic-inline-size-computed.html       |   30 -
 .../intrinsic-inline-size-invalid.html        |   21 -
 .../parsing/intrinsic-inline-size-valid.html  |   22 -
 .../parsing/intrinsic-size-computed.html      |   38 -
 .../parsing/intrinsic-size-invalid.html       |   24 -
 ...trinsic-size-sets-computed-dimensions.html |   61 -
 .../parsing/intrinsic-size-valid.html         |   26 -
 .../parsing/intrinsic-width-computed.html     |   30 -
 .../parsing/intrinsic-width-invalid.html      |   21 -
 .../parsing/intrinsic-width-valid.html        |   22 -
 .../intrinsic-size/resources/dice.png         |  Bin 58618 -> 0 bytes
 .../percentage-resolution-001-ref.html        |   16 -
 .../css-sizing/percentage-resolution-001.html |   26 -
 .../hyphens/hyphens-overflow-001.html         |    4 -
 .../reference/hyphens-overflow-001-ref.html   |    5 -
 .../animations/calc-interpolation.html        |   97 +
 .../css/support/interpolation-testcommon.js   |   10 +
 .../docs/writing-tests/reftests.md            |   35 +-
 .../document-policy/echo-policy-nested.html   |   32 +
 .../echo-policy-nested.html.headers           |    1 +
 .../document-policy/echo-policy.py            |   28 +
 .../required-policy/document-policy.html      |   54 +
 .../document-policy.html.headers              |    1 +
 .../required-policy/no-document-policy.html   |   44 +
 .../required-document-policy-nested.html      |   65 +
 .../required-document-policy.html             |   65 +
 .../required-document-policy.html.headers     |    1 +
 .../dom/events/Event-dispatch-redispatch.html |  138 +-
 .../api/cors/cors-preflight-redirect.any.js   |    2 +-
 .../fetch/api/idlharness.any.js               |    1 +
 .../appcache.tentative.https.sub.html         |   35 +-
 ...ml => navigation.tentative.https.sub.html} |    0
 ...grade-prefetch.optional.tentative.sub.html |   15 +
 ...grade-prefetch.optional.tentative.sub.html |   15 +
 ...grade-prefetch.optional.tentative.sub.html |   15 +
 .../fetch/metadata/resources/helper.js        |    4 -
 .../fetch/metadata/resources/record-header.py |   15 +-
 .../resources/redirectTestHelper.sub.js       |   49 +-
 .../fetch/stale-while-revalidate/fetch.html   |    2 +-
 .../opener-closed.html                        |    2 +-
 .../opener-multiple.html                      |    2 +-
 .../opener-noopener.html                      |    2 +-
 .../opener-noreferrer.html                    |    2 +-
 .../opener-setter.html                        |    2 +-
 .../auxiliary-browsing-contexts/opener.html   |    2 +-
 .../resize-during-playback.html               |   39 +
 .../constraints/infinite_backtracking.html    |   12 +
 .../actions/multiTouchPoints.html.ini         |    2 +-
 .../reftest/reftest_wait_TestRendered.html    |   14 +
 .../interfaces/cookie-store.idl               |   26 +-
 .../interfaces/resize-observer.idl            |    2 +-
 .../interfaces/wasm-js-api.idl                |   15 +-
 .../web-platform-tests/interfaces/web-nfc.idl |    4 +-
 .../pointerdown-becomes-scroll.html           |   62 +
 .../pointerdown-becomes-tap.html              |   60 +
 .../layout-instability/resources/util.js      |    3 +
 tests/wpt/web-platform-tests/lint.whitelist   |    1 +
 .../400x300-red-resize-200x150-green.mp4      |  Bin 0 -> 17425 bytes
 .../400x300-red-resize-200x150-green.webm     |  Bin 0 -> 11901 bytes
 .../portals/portals-adopt-predecessor.html    |   10 +
 .../portals-adopt-predecessor-portal.html     |    9 +
 ...t-worker-timing-frame.tentative.https.html |  225 ++
 .../resources/fetch-event-worker-timing.js    |   39 +
 .../storage-access-api/META.yml               |    3 +
 tests/wpt/web-platform-tests/svg/META.yml     |    1 +
 .../svg/painting/marker-009-ref.svg           |   19 +
 .../svg/painting/marker-009.svg               |   23 +
 .../svg/painting/marker-orient-001-ref.svg    |   31 +
 .../svg/painting/marker-orient-001.svg        |   16 +
 ...ject-in-non-rendered-getComputedStyle.html |   20 +
 .../tools/ci/azure/install_safari.yml         |    2 +-
 .../ci/azure/safari-technology-preview.rb     |   33 +
 .../web-platform-tests/tools/ci/commands.json |   24 +-
 .../wpt/web-platform-tests/tools/ci/run_tc.py |  109 +-
 .../web-platform-tests/tools/ci/tc/README.md  |  235 ++
 .../tools/{taskcluster => ci/tc}/__init__.py  |    0
 .../tools/ci/tc/decision.py                   |  323 +++
 .../ci/{tcdownload.py => tc/download.py}      |    1 +
 .../tools/ci/tc/taskgraph.py                  |  170 ++
 .../tools/ci/tc/tasks/test.yml                |  370 +++
 .../tc}/testdata/master_push_event.json       |    0
 .../tc}/testdata/pr_event.json                |    0
 .../tc/testdata/pr_event_tests_affected.json  |  505 ++++
 .../tools/ci/tc/tests/test_decision.py        |   54 +
 .../tools/ci/tc/tests/test_taskgraph.py       |  146 +
 .../tools/ci/tc/tests/test_valid.py           |  152 ++
 .../tools/ci/tests/test_run_tc.py             |   33 -
 .../tools/docker/frontend.py                  |    2 +
 .../tools/docker/seccomp.json                 |  798 ++++++
 .../wpt/web-platform-tests/tools/lint/lint.py |   12 +-
 .../tools/lint/tests/test_lint.py             |   30 +-
 .../tools/taskcluster/commands.json           |    4 -
 .../tools/taskcluster/verify.py               |   37 -
 tests/wpt/web-platform-tests/tools/tox.ini    |    5 +-
 .../web-platform-tests/tools/wpt/browser.py   |  107 +-
 .../web-platform-tests/tools/wpt/install.py   |   17 +-
 tests/wpt/web-platform-tests/tools/wpt/paths  |    1 -
 .../tools/wptrunner/docs/expectation.rst      |    2 +-
 .../tools/wptrunner/requirements_firefox.txt  |    2 +-
 .../wptrunner/wptrunner/executors/base.py     |   66 +-
 .../wptrunner/executors/executormarionette.py |   65 +-
 .../wptrunner/executors/executorselenium.py   |   44 +-
 .../wptrunner/executors/executorservo.py      |    1 -
 .../executors/executorservodriver.py          |   57 +-
 .../wptrunner/executors/executorwebdriver.py  |   59 +-
 .../executors/reftest-wait_marionette.js      |   19 -
 .../executors/reftest-wait_webdriver.js       |   48 +-
 .../tools/wptrunner/wptrunner/testrunner.py   |   18 +
 .../reverse-running-animation-ref.html        |   17 +
 .../animations/reverse-running-animation.html |   41 +
 .../animations/sync-start-times-ref.html      |   20 +
 .../animations/sync-start-times.html          |   68 +
 .../update-playback-rate-fast-ref.html        |   20 +
 .../animations/update-playback-rate-fast.html |   62 +
 .../update-playback-rate-slow-ref.html        |   18 +
 .../animations/update-playback-rate-slow.html |   62 +
 .../update-playback-rate-zero-ref.html        |   17 +
 .../animations/update-playback-rate-zero.html |   61 +
 ...html => NDEFReader_scan_filter.https.html} |   62 +-
 .../NDEFReadingEvent_constructor.https.html   |   20 +
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 create mode 100644 tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast.html
 create mode 100644 tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow-ref.html
 create mode 100644 tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow.html
 create mode 100644 tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero-ref.html
 create mode 100644 tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero.html
 rename tests/wpt/web-platform-tests/web-nfc/{NDEFReader_options.https.html => NDEFReader_scan_filter.https.html} (78%)

diff --git a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
index 76b398963ae..dd4ffcf4345 100644
--- a/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-in-tags-revoke.window.js.ini
@@ -1,5 +1,4 @@
 [url-in-tags-revoke.window.html]
-  expected: TIMEOUT
   [Fetching a blob URL immediately before revoking it works in an iframe.]
     expected: FAIL
 
@@ -15,6 +14,3 @@
   [Opening a blob URL in a new window by clicking an <a> tag works immediately before revoking the URL.]
     expected: FAIL
 
-  [Fetching a blob URL immediately before revoking it works in <script> tags.]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
index 0bf3b469372..f28a19f1250 100644
--- a/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
+++ b/tests/wpt/metadata/FileAPI/url/url-with-fetch.any.js.ini
@@ -2,6 +2,9 @@
   [Revoke blob URL after creating Request, will fetch]
     expected: FAIL
 
+  [Revoke blob URL after calling fetch, fetch should succeed]
+    expected: FAIL
+
 
 [url-with-fetch.any.html]
   [Revoke blob URL after creating Request, will fetch]
diff --git a/tests/wpt/metadata/MANIFEST.json b/tests/wpt/metadata/MANIFEST.json
index 714f683129b..3cf06c2c694 100644
--- a/tests/wpt/metadata/MANIFEST.json
+++ b/tests/wpt/metadata/MANIFEST.json
@@ -20301,6 +20301,42 @@
      {}
     ]
    ],
+   "content-dpr/image-pseudo-element-content-dpr.html": [
+    [
+     "content-dpr/image-pseudo-element-content-dpr.html",
+     [
+      [
+       "/content-dpr/image-pseudo-element-content-dpr-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "content-dpr/image-with-content-dpr-and-explicit-dimensions.html": [
+    [
+     "content-dpr/image-with-content-dpr-and-explicit-dimensions.html",
+     [
+      [
+       "/content-dpr/image-with-content-dpr-and-explicit-dimensions-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "content-dpr/tiled-background-image-with-content-dpr.html": [
+    [
+     "content-dpr/tiled-background-image-with-content-dpr.html",
+     [
+      [
+       "/content-dpr/tiled-background-image-with-content-dpr-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/CSS2/abspos/abspos-containing-block-initial-001.xht": [
     [
      "css/CSS2/abspos/abspos-containing-block-initial-001.xht",
@@ -110229,6 +110265,18 @@
      {}
     ]
    ],
+   "css/css-break/fieldset-001.html": [
+    [
+     "css/css-break/fieldset-001.html",
+     [
+      [
+       "/css/css-break/fieldset-001-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-break/fieldset.html": [
     [
      "css/css-break/fieldset.html",
@@ -110277,6 +110325,18 @@
      {}
     ]
    ],
+   "css/css-break/tall-break-inside-avoid-at-start.html": [
+    [
+     "css/css-break/tall-break-inside-avoid-at-start.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-break/widows-orphans-001.html": [
     [
      "css/css-break/widows-orphans-001.html",
@@ -124255,6 +124315,42 @@
      {}
     ]
    ],
+   "css/css-fonts/standard-font-family-17.html": [
+    [
+     "css/css-fonts/standard-font-family-17.html",
+     [
+      [
+       "/css/css-fonts/standard-font-family-17-notref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-fonts/standard-font-family-18.html": [
+    [
+     "css/css-fonts/standard-font-family-18.html",
+     [
+      [
+       "/css/css-fonts/standard-font-family-18-notref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-fonts/standard-font-family-19.html": [
+    [
+     "css/css-fonts/standard-font-family-19.html",
+     [
+      [
+       "/css/css-fonts/standard-font-family-19-notref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-fonts/standard-font-family-2.html": [
     [
      "css/css-fonts/standard-font-family-2.html",
@@ -124267,6 +124363,18 @@
      {}
     ]
    ],
+   "css/css-fonts/standard-font-family-20.html": [
+    [
+     "css/css-fonts/standard-font-family-20.html",
+     [
+      [
+       "/css/css-fonts/standard-font-family-20-notref.html",
+       "!="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-fonts/standard-font-family-3.html": [
     [
      "css/css-fonts/standard-font-family-3.html",
@@ -133003,6 +133111,18 @@
      {}
     ]
    ],
+   "css/css-multicol/equal-gap-and-rule.html": [
+    [
+     "css/css-multicol/equal-gap-and-rule.html",
+     [
+      [
+       "/css/reference/ref-filled-green-100px-square.xht",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-multicol/float-and-block.html": [
     [
      "css/css-multicol/float-and-block.html",
@@ -138775,6 +138895,18 @@
      {}
     ]
    ],
+   "css/css-pseudo/first-line-and-marker.html": [
+    [
+     "css/css-pseudo/first-line-and-marker.html",
+     [
+      [
+       "/css/css-pseudo/first-line-and-marker-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-pseudo/first-line-and-placeholder.html": [
     [
      "css/css-pseudo/first-line-and-placeholder.html",
@@ -142415,6 +142547,54 @@
      {}
     ]
    ],
+   "css/css-scroll-snap/snap-after-initial-layout/direction-rtl.html": [
+    [
+     "css/css-scroll-snap/snap-after-initial-layout/direction-rtl.html",
+     [
+      [
+       "/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-initial-layout/writing-mode-horizontal-tb.html": [
+    [
+     "css/css-scroll-snap/snap-after-initial-layout/writing-mode-horizontal-tb.html",
+     [
+      [
+       "/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-lr.html": [
+    [
+     "css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-lr.html",
+     [
+      [
+       "/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-rl.html": [
+    [
+     "css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-rl.html",
+     [
+      [
+       "/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html",
+       "=="
+      ]
+     ],
+     {}
+    ]
+   ],
    "css/css-scrollbars/scrollbars-chrome-bug-001.html": [
     [
      "css/css-scrollbars/scrollbars-chrome-bug-001.html",
@@ -144167,450 +144347,6 @@
      {}
     ]
    ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-001.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-001.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-001-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-002.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-002.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-002-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-003.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-003.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-003-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-004.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-004.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-004-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-005.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-005.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-004-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-006.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-006.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-006-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-007.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-007.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-007-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-008.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-008.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-008-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-009.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-009.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-009-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-010.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-010.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-010-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-011.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-011.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-011-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-012.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-012.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-012-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-013.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-013.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-013-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-014.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-014.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-014-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-015.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-015.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-015-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-016.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-016.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-016-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-017.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-017.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-017-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-018.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-018.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-018-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-019.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-019.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-019-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-020.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-020.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-020-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-021.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-021.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-021-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-022.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-022.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-022-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-023.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-023.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-023-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-024.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-024.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-024-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-025.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-025.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-025-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-026.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-026.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-026-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007-ref.html",
-       "=="
-      ]
-     ],
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008.html": [
-    [
-     "css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008.html",
-     [
-      [
-       "/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008-ref.html",
-       "=="
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-     ],
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@@ -289698,6 +289503,21 @@
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@@ -323603,6 +323454,12 @@
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@@ -324251,6 +324108,12 @@
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+   "css/css-scroll-snap/snap-after-relayout/adding-snap-area-while-snapped.html": [
     [
-     "css/css-scroll-snap/snap-area-caputring-add-scroll-container.html",
+     "css/css-scroll-snap/snap-after-relayout/adding-snap-area-while-snapped.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-relayout/move-current-target.html": [
+    [
+     "css/css-scroll-snap/snap-after-relayout/move-current-target.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-relayout/remove-current-target.html": [
+    [
+     "css/css-scroll-snap/snap-after-relayout/remove-current-target.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-after-relayout/snap-to-different-targets.html": [
+    [
+     "css/css-scroll-snap/snap-after-relayout/snap-to-different-targets.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-area-capturing-add-scroll-container.html": [
+    [
+     "css/css-scroll-snap/snap-area-capturing-add-scroll-container.html",
+     {}
+    ]
+   ],
+   "css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html": [
+    [
+     "css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html",
      {}
     ]
    ],
@@ -327163,102 +327056,6 @@
      {}
     ]
    ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-computed.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-computed.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-invalid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-invalid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-valid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-valid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-height-computed.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-height-computed.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-height-invalid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-height-invalid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-height-valid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-height-valid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-computed.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-computed.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-invalid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-invalid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-valid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-valid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-size-computed.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-size-computed.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-size-invalid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-size-invalid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-size-sets-computed-dimensions.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-size-sets-computed-dimensions.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-size-valid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-size-valid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-width-computed.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-width-computed.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-width-invalid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-width-invalid.html",
-     {}
-    ]
-   ],
-   "css/css-sizing/intrinsic-size/parsing/intrinsic-width-valid.html": [
-    [
-     "css/css-sizing/intrinsic-size/parsing/intrinsic-width-valid.html",
-     {}
-    ]
-   ],
    "css/css-sizing/min-max-content-orthogonal-flow-crash-001.html": [
     [
      "css/css-sizing/min-max-content-orthogonal-flow-crash-001.html",
@@ -333241,6 +333038,12 @@
      {}
     ]
    ],
+   "css/css-values/animations/calc-interpolation.html": [
+    [
+     "css/css-values/animations/calc-interpolation.html",
+     {}
+    ]
+   ],
    "css/css-values/calc-angle-values.html": [
     [
      "css/css-values/calc-angle-values.html",
@@ -337245,6 +337048,30 @@
      {}
     ]
    ],
+   "document-policy/required-policy/document-policy.html": [
+    [
+     "document-policy/required-policy/document-policy.html",
+     {}
+    ]
+   ],
+   "document-policy/required-policy/no-document-policy.html": [
+    [
+     "document-policy/required-policy/no-document-policy.html",
+     {}
+    ]
+   ],
+   "document-policy/required-policy/required-document-policy-nested.html": [
+    [
+     "document-policy/required-policy/required-document-policy-nested.html",
+     {}
+    ]
+   ],
+   "document-policy/required-policy/required-document-policy.html": [
+    [
+     "document-policy/required-policy/required-document-policy.html",
+     {}
+    ]
+   ],
    "dom/abort/event.any.js": [
     [
      "dom/abort/event.any.html",
@@ -337447,7 +337274,9 @@
    "dom/events/Event-dispatch-redispatch.html": [
     [
      "dom/events/Event-dispatch-redispatch.html",
-     {}
+     {
+      "testdriver": true
+     }
     ]
    ],
    "dom/events/Event-dispatch-reenter.html": [
@@ -352637,8 +352466,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ],
     [
@@ -352656,8 +352490,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ],
     [
@@ -352675,8 +352514,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ],
     [
@@ -352694,8 +352538,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ]
    ],
@@ -354104,9 +353953,9 @@
      {}
     ]
    ],
-   "fetch/metadata/navigation.https.sub.html": [
+   "fetch/metadata/navigation.tentative.https.sub.html": [
     [
-     "fetch/metadata/navigation.https.sub.html",
+     "fetch/metadata/navigation.tentative.https.sub.html",
      {}
     ]
    ],
@@ -354150,6 +353999,12 @@
      {}
     ]
    ],
+   "fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html": [
+    [
+     "fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html",
+     {}
+    ]
+   ],
    "fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade.tentative.sub.html": [
     [
      "fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade.tentative.sub.html",
@@ -354162,12 +354017,24 @@
      {}
     ]
    ],
+   "fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html": [
+    [
+     "fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html",
+     {}
+    ]
+   ],
    "fetch/metadata/redirect/redirect-http-upgrade.tentative.sub.html": [
     [
      "fetch/metadata/redirect/redirect-http-upgrade.tentative.sub.html",
      {}
     ]
    ],
+   "fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html": [
+    [
+     "fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html",
+     {}
+    ]
+   ],
    "fetch/metadata/redirect/redirect-https-downgrade.tentative.sub.html": [
     [
      "fetch/metadata/redirect/redirect-https-downgrade.tentative.sub.html",
@@ -362831,6 +362698,12 @@
      {}
     ]
    ],
+   "html/semantics/embedded-content/the-video-element/resize-during-playback.html": [
+    [
+     "html/semantics/embedded-content/the-video-element/resize-during-playback.html",
+     {}
+    ]
+   ],
    "html/semantics/embedded-content/the-video-element/video-tabindex.html": [
     [
      "html/semantics/embedded-content/the-video-element/video-tabindex.html",
@@ -362951,6 +362824,12 @@
      {}
     ]
    ],
+   "html/semantics/forms/constraints/infinite_backtracking.html": [
+    [
+     "html/semantics/forms/constraints/infinite_backtracking.html",
+     {}
+    ]
+   ],
    "html/semantics/forms/constraints/inputwillvalidate.html": [
     [
      "html/semantics/forms/constraints/inputwillvalidate.html",
@@ -371657,6 +371536,22 @@
      {}
     ]
    ],
+   "layout-instability/pointerdown-becomes-scroll.html": [
+    [
+     "layout-instability/pointerdown-becomes-scroll.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
+   "layout-instability/pointerdown-becomes-tap.html": [
+    [
+     "layout-instability/pointerdown-becomes-tap.html",
+     {
+      "testdriver": true
+     }
+    ]
+   ],
    "layout-instability/rtl-distance.html": [
     [
      "layout-instability/rtl-distance.html",
@@ -406497,6 +406392,12 @@
      }
     ]
    ],
+   "service-workers/service-worker/fetch-event-worker-timing-frame.tentative.https.html": [
+    [
+     "service-workers/service-worker/fetch-event-worker-timing-frame.tentative.https.html",
+     {}
+    ]
+   ],
    "service-workers/service-worker/fetch-event.https.html": [
     [
      "service-workers/service-worker/fetch-event.https.html",
@@ -416096,6 +415997,12 @@
      {}
     ]
    ],
+   "svg/render/foreignObject-in-non-rendered-getComputedStyle.html": [
+    [
+     "svg/render/foreignObject-in-non-rendered-getComputedStyle.html",
+     {}
+    ]
+   ],
    "svg/scripted/script-runs-in-shadow-tree.html": [
     [
      "svg/scripted/script-runs-in-shadow-tree.html",
@@ -425691,18 +425598,18 @@
      {}
     ]
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-   "web-nfc/NDEFReader_options.https.html": [
-    [
-     "web-nfc/NDEFReader_options.https.html",
-     {}
-    ]
-   ],
    "web-nfc/NDEFReader_scan.https.html": [
     [
      "web-nfc/NDEFReader_scan.https.html",
      {}
     ]
    ],
+   "web-nfc/NDEFReader_scan_filter.https.html": [
+    [
+     "web-nfc/NDEFReader_scan_filter.https.html",
+     {}
+    ]
+   ],
    "web-nfc/NDEFReader_scan_iframe.https.html": [
     [
      "web-nfc/NDEFReader_scan_iframe.https.html",
@@ -437990,8 +437897,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ],
     [
@@ -438009,8 +437921,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ],
     [
@@ -438028,8 +437945,13 @@
        [
         "script",
         "/resources/idlharness.js"
+       ],
+       [
+        "timeout",
+        "long"
        ]
-      ]
+      ],
+      "timeout": "long"
      }
     ]
    ],
@@ -459312,9 +459234,7 @@
    "webdriver/tests/find_element_from_element/find.py": [
     [
      "webdriver/tests/find_element_from_element/find.py",
-     {
-      "timeout": "long"
-     }
+     {}
     ]
    ],
    "webdriver/tests/find_element_from_element/user_prompts.py": [
@@ -460023,7 +459943,7 @@
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  "paths": {
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-   "fa0dc670502745aa98ec5d86461f2a17ac8e329f",
+   "a534278337d3af9489b9355f3e8fd5575d0c1f74",
    "support"
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@@ -460051,7 +459971,7 @@
    "support"
   ],
   ".github/workflows/manifest.yml": [
-   "555b9d6c2903c144539a2ec65168d6e9aa3d7344",
+   "e4708873c0d5e415a171ed2598a0b94f22c272b6",
    "support"
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@@ -460067,7 +459987,7 @@
    "support"
   ],
   ".taskcluster.yml": [
-   "6bc9253ec2055645981206620ecdee3d1becb792",
+   "cc07b1d67117e98ca098dc9fc5a33497cd9faaf6",
    "support"
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@@ -471039,7 +470959,7 @@
    "support"
   ],
   "client-hints/accept_ch.tentative.https.html": [
-   "4b46610c58103cf29734842869856df3e1d404df",
+   "0f8b525576e0d67baa2ca23381c620909d12e539",
    "testharness"
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   "client-hints/accept_ch.tentative.sub.https.html": [
@@ -471087,7 +471007,7 @@
    "testharness"
   ],
   "client-hints/http_equiv_accept_ch.tentative.https.html": [
-   "74eea344e90879e24568a76ba8e1197f6e9cede5",
+   "2830cb714fad4be98ddcf0ccf7594b749e77b50d",
    "testharness"
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@@ -471098,10 +471018,6 @@
    "dd516a97c965f4a248fa27ed8ce71dae6251e106",
    "testharness"
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-  "client-hints/image-with-dpr-header.html": [
-   "6c4e60844763469bbe21990879191eac0f296230",
-   "testharness"
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    "support"
@@ -471134,10 +471050,6 @@
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-  "client-hints/resources/dpr.py": [
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-   "support"
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    "support"
@@ -471734,7 +471646,7 @@
    "11d8736cb225d6ce575677dcdb70b0a19dd4f65f",
    "testharness"
   ],
-  "compression/decompression-corrupt-input.any.js": [
+  "compression/decompression-corrupt-input.tentative.any.js": [
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    "testharness"
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@@ -488831,7 +488743,7 @@
    "support"
   ],
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-   "94d3bc461f5a0d045ed5b6329dda016e1fe0b188",
+   "2dcd3830d72dc42396e7270557954d107e6abbc0",
    "support"
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@@ -489346,6 +489258,46 @@
    "c64ecd067c82d050f989f1cbe005fe0b33bb9e96",
    "support"
   ],
+  "content-dpr/image-pseudo-element-content-dpr-ref.html": [
+   "baa25ac87c8f96ca630d2a6b508d6f3649fb8bb8",
+   "support"
+  ],
+  "content-dpr/image-pseudo-element-content-dpr.html": [
+   "7770df39997206261036029734b2304e6be331b2",
+   "reftest"
+  ],
+  "content-dpr/image-with-content-dpr-and-explicit-dimensions-ref.html": [
+   "27ce1be8b0d9b46f667da882d1c7903136a5aed0",
+   "support"
+  ],
+  "content-dpr/image-with-content-dpr-and-explicit-dimensions.html": [
+   "783fb03a3b06278b7d3284bee80ac123b0d10109",
+   "reftest"
+  ],
+  "content-dpr/image-with-dpr-header.html": [
+   "6c4e60844763469bbe21990879191eac0f296230",
+   "testharness"
+  ],
+  "content-dpr/resources/background.png": [
+   "6db6c6b1b9d851c7a85b93ddc9e5ddf368ac0a7e",
+   "support"
+  ],
+  "content-dpr/resources/dpr.py": [
+   "14d7d550fe28d49a63105ea966d3cf7cf59901b1",
+   "support"
+  ],
+  "content-dpr/resources/square.png": [
+   "01c9666a8de9d5535615aff830810e5df4b2156f",
+   "support"
+  ],
+  "content-dpr/tiled-background-image-with-content-dpr-ref.html": [
+   "58cbeb436fc1181eac3dc2e55fa343b0dd05e8d4",
+   "support"
+  ],
+  "content-dpr/tiled-background-image-with-content-dpr.html": [
+   "94f2f72d40196749faf6092d178f67dfc7067dcb",
+   "reftest"
+  ],
   "content-security-policy/META.yml": [
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    "support"
@@ -492326,6 +492278,10 @@
    "a4b31178ab0977e96e86e45b550712b862c6d2c7",
    "testharness"
   ],
+  "cookie-store/cookieStore_subscriptions_empty.tentative.https.window.js": [
+   "907a34b4de6632f5e91adbcd606839a92eead320",
+   "testharness"
+  ],
   "cookie-store/encoding.https.any.js": [
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    "testharness"
@@ -492338,6 +492294,10 @@
    "0c7a5150237910b1af301f91f782f300c713071a",
    "testharness"
   ],
+  "cookie-store/resources/always_changing_sw.sub.js": [
+   "9fdf99848fa50316e275cd6636a5755270a9bb1e",
+   "support"
+  ],
   "cookie-store/resources/cookie-test-helpers.js": [
    "178947ad6eca72967aa9bbc3a13172a0402bc17d",
    "support"
@@ -492367,7 +492327,7 @@
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions.js": [
-   "41cbed01a5be61b6eafa739fe65a97464c34c13d",
+   "107bb9576124a63ac9b68a3585acdde973a03f7a",
    "support"
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   "cookie-store/serviceworker_cookieStore_subscriptions.tentative.https.html": [
@@ -492375,7 +492335,7 @@
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_basic.js": [
-   "293969e5b8f86fac896b0fa75f632b31504a9a83",
+   "a96eeeb116df3f6571bff5c74d39c4991b7fc31d",
    "support"
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   "cookie-store/serviceworker_cookieStore_subscriptions_basic.tentative.https.html": [
@@ -492383,7 +492343,7 @@
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_empty.js": [
-   "b62318699740938134fc51ab4c42670ce8878aca",
+   "7df77730553faf37bb17ff7e9fa42de91e7f6df3",
    "support"
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   "cookie-store/serviceworker_cookieStore_subscriptions_empty.tentative.https.html": [
@@ -492391,7 +492351,7 @@
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js": [
-   "258441921bf6bf7f72eeaf8602653c55ca991af0",
+   "ed0cdcfcfca7e91109df45628999c51c5cbee236",
    "support"
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   "cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.tentative.https.html": [
@@ -492399,19 +492359,15 @@
    "testharness"
   ],
   "cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js": [
-   "bd37b9be1eec4aa4a1469502074463acd37f17fc",
+   "5414a664db6771f4c87614af9e3b9f7b597f4664",
    "support"
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   "cookie-store/serviceworker_cookieStore_subscriptions_mismatch.tentative.https.html": [
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    "testharness"
   ],
+  "web-animations/timing-model/animations/sync-start-times-ref.html": [
+   "fc843a132f2f3741ce27ed796d1182488deb336b",
+   "support"
+  ],
+  "web-animations/timing-model/animations/sync-start-times.html": [
+   "06dcf0305639f21fbeea35039023fe2102c38451",
+   "reftest"
+  ],
   "web-animations/timing-model/animations/the-current-time-of-an-animation.html": [
    "77a6b716d22062998529b58382e0205e6f017980",
    "testharness"
   ],
+  "web-animations/timing-model/animations/update-playback-rate-fast-ref.html": [
+   "af69b26100ae02ee711274071df416c45f71d868",
+   "support"
+  ],
+  "web-animations/timing-model/animations/update-playback-rate-fast.html": [
+   "63a76ba84a62736bb7edb05d9cfa79d6dc73c1cf",
+   "reftest"
+  ],
+  "web-animations/timing-model/animations/update-playback-rate-slow-ref.html": [
+   "11b87deecca4bcea480c9bec9221a02cd1c97a9b",
+   "support"
+  ],
+  "web-animations/timing-model/animations/update-playback-rate-slow.html": [
+   "db449f2ca596c274170c94c1bb5dc0c87a1ba120",
+   "reftest"
+  ],
+  "web-animations/timing-model/animations/update-playback-rate-zero-ref.html": [
+   "26293a3aebbb004dbc03742544c86d237081a56b",
+   "support"
+  ],
+  "web-animations/timing-model/animations/update-playback-rate-zero.html": [
+   "bed08d630ca2de7960e49e26c9f40da8e772f5b0",
+   "reftest"
+  ],
   "web-animations/timing-model/animations/updating-the-finished-state.html": [
    "4d3cc7950b09bdffc826dfa9ffd885e6dea5e9ac",
    "testharness"
@@ -717302,20 +717198,20 @@
    "9cf42e83bf306b5272fd753461fb78c3c9a4992f",
    "manual"
   ],
-  "web-nfc/NDEFReader_options.https.html": [
-   "6901e5cdcb25cce0f3f3a02aed842b3524cc7b8a",
-   "testharness"
-  ],
   "web-nfc/NDEFReader_scan.https.html": [
    "78160fbcb2ab11a8ebc80c39a6fd935eddc0844b",
    "testharness"
   ],
+  "web-nfc/NDEFReader_scan_filter.https.html": [
+   "4c1e7de44008889386e71431d7b4d0042739fe4e",
+   "testharness"
+  ],
   "web-nfc/NDEFReader_scan_iframe.https.html": [
    "9bdb07136821211214e7d2d838f92da3f1955bc4",
    "testharness"
   ],
   "web-nfc/NDEFReadingEvent_constructor.https.html": [
-   "15ef6e466aab05e289cc93bb678fbda02ce253f7",
+   "3d734105e9ce0ed68e86e421f80847fa485779fe",
    "testharness"
   ],
   "web-nfc/NDEFRecord_constructor.https.html": [
@@ -717343,7 +717239,7 @@
    "testharness"
   ],
   "web-nfc/resources/nfc-helpers.js": [
-   "eb3006114c7c505a5737894e8dc7d1d0eeda8fa7",
+   "0fe6fe80cb1cec7ef582bae5d7974bce9d1d8596",
    "support"
   ],
   "web-nfc/resources/support-iframe.html": [
@@ -718887,7 +718783,7 @@
    "support"
   ],
   "webdriver/tests/find_element_from_element/find.py": [
-   "b107a8957e08fa2c83fd47459f1e66d3b7d74134",
+   "56e216bb646131bdcc9a0c3c28ea4142c2982897",
    "wdspec"
   ],
   "webdriver/tests/find_element_from_element/user_prompts.py": [
@@ -720747,7 +720643,7 @@
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription-rollback.html": [
-   "73a0fe1e5a1349c397d65aa15a89bef909192c43",
+   "342e325dad2af804c659891d7a05f00933b487a7",
    "testharness"
   ],
   "webrtc/RTCPeerConnection-setRemoteDescription-tracks.https.html": [
@@ -728587,7 +728483,7 @@
    "testharness"
   ],
   "xhr/idlharness.any.js": [
-   "f36f0ce02967ec873bc8231669da22177fa39f75",
+   "d45e52e2341b8ce43d3e7e144afe518eba74c173",
    "testharness"
   ],
   "xhr/loadstart-and-state.html": [
diff --git a/tests/wpt/metadata/css/CSS2/floats/floats-in-table-caption-001.html.ini b/tests/wpt/metadata/css/CSS2/floats/floats-in-table-caption-001.html.ini
new file mode 100644
index 00000000000..86715ffc9c2
--- /dev/null
+++ b/tests/wpt/metadata/css/CSS2/floats/floats-in-table-caption-001.html.ini
@@ -0,0 +1,2 @@
+[floats-in-table-caption-001.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/CSS2/linebox/animations/line-height-interpolation.html.ini b/tests/wpt/metadata/css/CSS2/linebox/animations/line-height-interpolation.html.ini
index bbc1d4c8664..eb580957227 100644
--- a/tests/wpt/metadata/css/CSS2/linebox/animations/line-height-interpolation.html.ini
+++ b/tests/wpt/metadata/css/CSS2/linebox/animations/line-height-interpolation.html.ini
@@ -1,2 +1,841 @@
 [line-height-interpolation.html]
-  expected: ERROR
+  [CSS Transitions with transition: all: property <line-height> from [4px\] to [14px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4q\] to [14q\] at (1.5) should be [19q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (0) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4px\] to [14px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4\] to [14\] at (1.5) should be [19\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (0.6) should be [10q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.6) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (1.5) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4q\] to [14q\] at (-1) should be [0q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4q\] to [14q\] at (0.6) should be [10q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.5) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (1) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (1.5) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (1.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (-0.3) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (0.6) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (-0.3) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [inherit\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4\] to [14\] at (0.3) should be [7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (0) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (1.5) should be [19\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4q\] to [14q\] at (0.3) should be [7q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (-0.3) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (0) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (0.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (0.6) should be [10q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.5) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (0.5) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (0.6) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (0) should be [4px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (1.5) should be [19\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (1.5) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4q\] to [14q\] at (0.6) should be [10q\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [inherit\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (0.6) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (0.3) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.6) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (0) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (0.3) should be [7q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (0.6) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4q\] to [14q\] at (-0.3) should be [1q\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [unset\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (0) should be [4px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (0) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (0.3) should be [7\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (-0.3) should be [1q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (0.6) should be [14q\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (0.6) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (1.5) should be [19q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (0.5) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (0) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4\] to [14\] at (1.5) should be [19\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (-1) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (1) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4\] to [14\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (1.5) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.5) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4q\] to [14q\] at (1.5) should be [19q\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.6) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (1.5) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (1.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4q\] to [14q\] at (-1) should be [0q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4\] to [14\] at (0.3) should be [7\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (-1) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (1.5) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4q\] to [14q\] at (-0.3) should be [1q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (0.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.3) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.5) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4\] to [14\] at (-1) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (1) should be [14\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4\] to [14\] at (0.6) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4\] to [14\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (-0.3) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4q\] to [14q\] at (0.3) should be [7q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (0) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14px\] at (0) should be [4\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (1) should be [14q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (1.5) should be [19q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (0) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (0.6) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (1.5) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (0) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (0.3) should be [7q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [4\] at (-0.3) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14px\] to [normal\] at (0.3) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (1.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [4\] to [14\] at (-1) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [unset\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (-0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (0.3) should be [7\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [4\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [14q\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14q\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14q\] at (1) should be [14q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (0.6) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14q\] at (0) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4\] to [14\] at (1) should be [14\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [4\] to [14\] at (0.6) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <line-height> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [14px\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (0.5) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <line-height> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [normal\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (0) should be [4q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4q\] to [14q\] at (-1) should be [0q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (0) should be [4q\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [14\] at (0.6) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (-1) should be [0q\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [unset\] to [20px\] at (-1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4px\] to [14px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [4\] to [normal\] at (0.3) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <line-height> from [normal\] to [14px\] at (0.5) should be [14px\]]
+    expected: FAIL
+
+  [CSS Animations: property <line-height> from [4q\] to [14q\] at (-0.3) should be [1q\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/CSS2/visufx/animation/visibility-interpolation.html.ini b/tests/wpt/metadata/css/CSS2/visufx/animation/visibility-interpolation.html.ini
index 7f02684f048..56e097738cd 100644
--- a/tests/wpt/metadata/css/CSS2/visufx/animation/visibility-interpolation.html.ini
+++ b/tests/wpt/metadata/css/CSS2/visufx/animation/visibility-interpolation.html.ini
@@ -1,5 +1,247 @@
 [visibility-interpolation.html]
-  expected: ERROR
   [visibility interpolation]
     expected: FAIL
 
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [hidden\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (0) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [hidden\] to [visible\] at (0) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [visible\] at (0) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [hidden\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (0) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [visible\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [hidden\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [visible\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [visible\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (-1) should be [collapse\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (-1) should be [collapse\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [visible\] at (0.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (-1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (-1) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [visible\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (-1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [visible\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0.3) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [hidden\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [hidden\] to [visible\] at (-1) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [hidden\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [visible\] at (-1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (-1) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (1.5) should be [visible\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [hidden\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [visible\] at (0) should be [collapse\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (0.6) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Animations: property <visibility> from [collapse\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [hidden\] to [visible\] at (0) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [hidden\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (0) should be [hidden\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (1) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (1.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <visibility> from [collapse\] to [visible\] at (0.1) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [visible\] to [visible\] at (1) should be [visible\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [collapse\] to [hidden\] at (0.5) should be [hidden\]]
+    expected: FAIL
+
+  [CSS Transitions: property <visibility> from [hidden\] to [visible\] at (0.9) should be [visible\]]
+    expected: FAIL
+
+  [Web Animations: property <visibility> from [collapse\] to [hidden\] at (-0.3) should be [collapse\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-align/animation/column-gap-interpolation.html.ini b/tests/wpt/metadata/css/css-align/animation/column-gap-interpolation.html.ini
index d0c9b229624..4870df475f6 100644
--- a/tests/wpt/metadata/css/css-align/animation/column-gap-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-align/animation/column-gap-interpolation.html.ini
@@ -1,5 +1,472 @@
 [column-gap-interpolation.html]
-  expected: ERROR
   [column-gap interpolation]
     expected: FAIL
 
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [initial\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [initial\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <column-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <column-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <column-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <column-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-align/animation/row-gap-interpolation.html.ini b/tests/wpt/metadata/css/css-align/animation/row-gap-interpolation.html.ini
index 0974487f792..c2c9640864a 100644
--- a/tests/wpt/metadata/css/css-align/animation/row-gap-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-align/animation/row-gap-interpolation.html.ini
@@ -1,5 +1,472 @@
 [row-gap-interpolation.html]
-  expected: ERROR
   [row-gap interpolation]
     expected: FAIL
 
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (0.3) should be [69px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [normal\] to [20px\] at (0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [unset\] to [20px\] at (-0.3) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [inherit\] to [20px\] at (0) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [normal\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [inherit\] to [20px\] at (-0.3) should be [111px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [inherit\] to [20px\] at (0.6) should be [48px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [unset\] to [20px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <row-gap> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <row-gap> from [normal\] to [20px\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <row-gap> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <row-gap> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-color-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-color-interpolation.html.ini
index 1e54a5f1f23..83217853567 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-color-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-color-interpolation.html.ini
@@ -1,5 +1,400 @@
 [background-color-interpolation.html]
-  expected: ERROR
   [background-color-interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1) should be [rgba(0, 255, 0, 0.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (0) should be [rgb(238, 238, 238)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1) should be [rgba(0, 255, 0, 0.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0) should be [rgba(0, 0, 255, 0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0) should be [rgba(0, 0, 255, 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (0) should be [rgb(238, 238, 238)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 73, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (-0.5) should be [rgba(0, 0, 255, 0.38)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [transparent\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (1.5) should be [rgba(0, 255, 0, 0.88)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.5) should be [rgba(0, 153, 102, 0.63)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (-0.3) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.75) should be [rgba(0, 208, 47, 0.69)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [initial\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [inherit\] to [green\] at (0.6) should be [rgb(95, 172, 95)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [transparent\] to [green\] at (0) should be [rgba(0, 0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [initial\] to [green\] at (0.3) should be [rgba(0, 128, 0, 0.3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [inherit\] to [green\] at (0.3) should be [rgb(167, 205, 167)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <background-color> from neutral to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-color> from [currentcolor\] to [rgba(0, 255, 0, 0.75)\] at (0.25) should be [rgba(0, 85, 170, 0.56)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-color> from [unset\] to [green\] at (0.6) should be [rgba(0, 128, 0, 0.6)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-color> from [transparent\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-image-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-image-interpolation.html.ini
index 85c15e88106..a55ebda26fd 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-image-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-image-interpolation.html.ini
@@ -1,2 +1,556 @@
 [background-image-interpolation.html]
-  expected: ERROR
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.6) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1.5) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.6) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.6) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (-0.3) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.6) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.6) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.6) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.6) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1.5) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1.5) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.6) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.3) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0.3) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1.5) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (0) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1.5) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [unset\] to [url(../resources/green-100.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.6) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (1.5) should be [url(../resources/stripes-100.png), url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [url(../resources/green-100.png)\] at (0.6) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1.5) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from neutral to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png), none\] to [url(../resources/stripes-100.png), url(../resources/green-100.png)\] at (-0.3) should be [url(../resources/blue-100.png), none\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (-0.3) should be [url(../resources/stripes-100.png), url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-image> from [inherit\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (0) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [none\] to [url(../resources/green-100.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-image> from [initial\] to [url(../resources/green-100.png)\] at (1.5) should be [url(../resources/green-100.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (-0.3) should be [url(../resources/blue-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/stripes-100.png), url(../resources/blue-100.png)\] to [url(../resources/blue-100.png), url(../resources/stripes-100.png)\] at (1.5) should be [url(../resources/blue-100.png), url(../resources/stripes-100.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-image> from [url(../resources/blue-100.png)\] to [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\] at (1.5) should be [cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-image> from [url(../resources/blue-100.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-interpolation.html.ini
index 7f0649b1627..991c81c43f3 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-interpolation.html.ini
@@ -1,5 +1,151 @@
 [background-position-interpolation.html]
-  expected: ERROR
   [background-position-interpolation]
     expected: FAIL
 
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [85px 85px, 85px 85px, 85px 85px, 85px 85px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px),  calc(0% - 20px)  calc(0% - 20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [ 10px  10px, 80px  20px, 0px  20px, 70px  10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [55px 55px, 55px 55px, 55px 55px, 55px 55px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [ 40px  40px, 80px  80px, 0px  80px, 40px  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [ 20px  20px, 80px  40px, 0px  40px, 60px  20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [65px 65px, 65px 65px, 65px 65px, 65px 65px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px), calc(0% + 100px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px),  calc(0% + 40px)  calc(0% + 40px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [ 50px  50px, 80px 100px, 0px 100px, 30px  50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [  0px   0px, 80px   0px, 0px   0px, 80px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [75px 75px, 75px 75px, 75px 75px, 75px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0) should be [40px 40px, 40px 40px, 40px 40px, 40px 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1) should be [calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px),  calc(0% + 80px)  calc(0% + 80px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [50px 50px, 50px 50px, 50px 50px, 50px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [90px 90px, 90px 90px, 90px 90px, 90px 90px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1) should be [80px 80px, 80px 80px, 80px 80px, 80px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [30px 30px, 30px 30px, 30px 30px, 30px 30px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.25) should be [calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px),  calc(0% + 20px)  calc(0% + 20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0) should be [0% 0%, 0% 0%, 0% 0%, 0% 0%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [top 0px left 0px\] to [left 80px top 80px\] at (-0.25) should be [-20px -20px, -20px -20px, -20px -20px, -20px -20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.5) should be [60px 60px, 60px 60px, 60px 60px, 60px 60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [ 30px  30px, 80px  60px, 0px  60px, 50px  30px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [70px 70px, 70px 70px, 70px 70px, 70px 70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [-10px -10px, 80px -20px, 0px -20px, 90px -10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [80px 80px, 80px 80px, 80px 80px, 80px 80px\] at (0.75) should be [calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px),  calc(0% + 60px)  calc(0% + 60px)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini
index 9d9724f8cc8..0b12684b578 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-origin-interpolation.html.ini
@@ -1,5 +1,214 @@
 [background-position-origin-interpolation.html]
-  expected: ERROR
   [background-position-origin-interpolation]
     expected: FAIL
 
+  [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (0.5) should be [calc(10px + 25%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.25) should be [calc(5px + 37.5%) calc(-5px + 62.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center center\] at (1) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (0.25) should be [calc(5px + 37.5%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.5) should be [calc(-10px + 75%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [left 20px top 20px\] at (0.25) should be [5px 5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.5) should be [15px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center center\] at (0.25) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.25) should be [calc(-5px + 62.5%) calc(5px + 37.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center center\] at (0.75) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.5) should be [calc(-10px + 75%) calc(-10px + 75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.75) should be [35px 35px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [left 20px top 20px\] at (0.75) should be [15px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.25) should be [65px 65px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (1) should be [20px calc(-20px + 100%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center top 20px\] at (1) should be [50% 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px center\] at (1) should be [calc(-20px + 100%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [left 20px top 20px\] at (0) should be [10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (0.75) should be [calc(-15px + 87.5%) calc(15px + 12.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.25) should be [50% calc(-5px + 62.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center bottom 20px\] at (1) should be [50% calc(-20px + 100%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center center\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [left 20px top 20px\] at (0.5) should be [10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px center\] at (0.25) should be [calc(-5px + 62.5%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center top 20px\] at (0.5) should be [50% calc(10px + 25%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px center\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center top 20px\] at (0.75) should be [50% calc(15px + 12.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center\] to [bottom\] at (1) should be [50% 100%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [left 20px top 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (1) should be [calc(-20px + 100%) calc(-20px + 100%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.75) should be [calc(-15px + 87.5%) calc(-15px + 87.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.75) should be [calc(15px + 12.5%) calc(15px + 12.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center\] to [bottom\] at (0.75) should be [50% 87.5%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [left 20px top 20px\] at (0) should be [0% 0%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px bottom 20px\] at (0.25) should be [calc(-5px + 62.5%) calc(-5px + 62.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center\] to [bottom\] at (0.25) should be [50% 62.5%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px center\] at (0.5) should be [calc(-10px + 75%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.5) should be [50% calc(-10px + 75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center top 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center\] to [bottom\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0.5) should be [50px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.5) should be [calc(10px + 25%) calc(-10px + 75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [left 20px top 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [inherit\] to [left 20px top 20px\] at (0) should be [80px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px center\] at (0.75) should be [calc(-15px + 87.5%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center top 20px\] at (0.25) should be [50% calc(5px + 37.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center\] to [bottom\] at (0.5) should be [50% 75%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [left 20px top 20px\] at (0.75) should be [15px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [left 20px top 20px\] at (0.5) should be [10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px bottom 20px\] at (0.75) should be [calc(15px + 12.5%) calc(-15px + 87.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [unset\] to [left 20px top 20px\] at (0.25) should be [5px 5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (1) should be [20px 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.25) should be [12.5px 12.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center bottom 20px\] at (0.75) should be [50% calc(-15px + 87.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [initial\] to [left 20px top 20px\] at (0) should be [0% 0%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [center center\] at (0.5) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [right 20px top 20px\] at (1) should be [calc(-20px + 100%) 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (0.25) should be [calc(5px + 37.5%) calc(5px + 37.5%)\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px center\] at (0.75) should be [calc(15px + 12.5%) 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [left 20px top 20px\] at (0.75) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from [center center\] to [left 20px top 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position> from neutral to [left 20px top 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini
index fb2d744eb50..440ddbdff7e 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-x-interpolation.html.ini
@@ -1,5 +1,289 @@
 [background-position-x-interpolation.html]
-  expected: ERROR
   [background-position-x-interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <background-position-x> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1) should be [500px, 600px, 700px, 500px, 600px, 700px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [initial\] to [right\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (0) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [initial\] to [right\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0) should be [300px, 400px, 300px, 400px, 300px, 400px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [initial\] to [right\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [initial\] to [right\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [initial\] to [right\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [initial\] to [right\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [initial\] to [right\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [initial\] to [right\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (0) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (1) should be [500px, 600px, 700px, 500px, 600px, 700px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-x> from [initial\] to [right\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0) should be [300px, 400px, 300px, 400px, 300px, 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (0) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-x> from [initial\] to [right\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [initial\] to [right\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [initial\] to [right\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-x> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-x> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini
index a92ca1bf0a1..d6fcfc1556f 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-position-y-interpolation.html.ini
@@ -1,5 +1,289 @@
 [background-position-y-interpolation.html]
-  expected: ERROR
   [background-position-y-interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <background-position-y> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [initial\] to [bottom\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (0) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (0) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [initial\] to [bottom\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (0) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from neutral to [80px\] at (0.5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [initial\] to [bottom\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [initial\] to [bottom\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0) should be [300px, 400px, 300px, 400px, 300px, 400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [initial\] to [bottom\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [initial\] to [bottom\] at (1.25) should be [125%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [initial\] to [bottom\] at (0.75) should be [75%\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1) should be [500px, 600px, 700px, 500px, 600px, 700px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1) should be [500px, 600px, 700px, 500px, 600px, 700px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.5) should be [400px, 500px, 500px, 450px, 450px, 550px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (0.5) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (0.75) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (1.25) should be [550px, 650px, 800px, 525px, 675px, 775px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [inherit\] to [80px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [inherit\] to [80px\] at (1.25) should be [85px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from [initial\] to [bottom\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [initial\] to [bottom\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.75) should be [450px, 550px, 600px, 475px, 525px, 625px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (1.25) should be [90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [initial\] to [bottom\] at (0.25) should be [25%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [initial\] to [bottom\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (0.25) should be [65px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0) should be [300px, 400px, 300px, 400px, 300px, 400px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [initial\] to [bottom\] at (-0.25) should be [-25%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from neutral to [80px\] at (-0.25) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-position-y> from [inherit\] to [80px\] at (-0.25) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-position-y> from neutral to [80px\] at (0.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (-0.25) should be [250px, 350px, 200px, 375px, 225px, 325px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-position-y> from [300px, 400px\] to [500px, 600px, 700px\] at (0.25) should be [350px, 450px, 400px, 425px, 375px, 475px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-position-y> from [inherit\] to [80px\] at (1) should be [80px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/background-size-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/background-size-interpolation.html.ini
index dd8677a8b26..e48bbf678a1 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/background-size-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/background-size-interpolation.html.ini
@@ -1,5 +1,736 @@
 [background-size-interpolation.html]
-  expected: ERROR
   [background-size-interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px  60px, 0px  60px, 50px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [40px 40px, 80px  80px, 0px  80px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0) should be [10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px  40px, 0px  40px, 60px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (0) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px,  2.5px  2.5px, 17.5px 17.5px,  2.5px  2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.5) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1.5) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px  40px, 0px  40px, 60px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (-0.25) should be [ 0px  0px,  0px  0px,  0px  0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.5) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.5) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px,  2.5px  2.5px, 17.5px 17.5px,  2.5px  2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (-0.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px,  75px  75px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.5) should be [ 40px,  40px,  40px,  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [ 40px  40px,  25px  25px,  40px  40px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px,  75px  75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1) should be [ 20px  20px,   0px   0px,  20px  20px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.25) should be [10px auto, 10px 10px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (1) should be [ 80px,  80px,  80px,  80px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.75) should be [30px auto, 30px 30px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1) should be [40px auto, 40px 40px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [ 0px  0px, 80px   0px, 0px   0px, 90px  0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.6) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px  40px, 0px  40px, 60px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [ 5px  5px, 10px 10px, 15px 15px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15.0px 15.0px,  5.0px  5.0px, 15.0px 15.0px,  5.0px  5.0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.6) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px,  75px  75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (-0.25) should be [ 7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1.25) should be [50px auto, 50px 50px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (-0.25) should be [ 0px  0px,  0px  0px,  0px  0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px  60px, 0px  60px, 50px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px,  2.5px  2.5px, 17.5px 17.5px,  2.5px  2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (1) should be [ 80px,  80px,  80px,  80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [ 5px  5px, 10px 10px, 15px 15px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1) should be [ 20px  20px,   0px   0px,  20px  20px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [ 80px  80px,  75px  75px,  80px  80px,  75px  75px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [40px 40px, 80px  80px, 0px  80px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [ 0px  0px, 80px   0px, 0px   0px, 80px  0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.5) should be [ 40px,  40px,  40px,  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1) should be [ 20px  20px,   0px   0px,  20px  20px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [ 0px  0px, 80px   0px, 0px   0px, 90px  0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px  60px, 0px  60px, 50px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0) should be [10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1.25) should be [50px auto, 50px 50px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.75) should be [30px auto, 30px 30px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.5) should be [ 40px,  40px,  40px,  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [ 40px  40px,  25px  25px,  40px  40px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [ 40px  40px,  25px  25px,  40px  40px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (-0.3) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.6) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.75) should be [ 60px  60px,  60px  60px,  60px  60px,  60px  60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [ 5px  5px, 10px 10px, 15px 15px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (-0.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [ 80px  80px,  75px  75px,  80px  80px,  75px  75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [ 0px  0px, 80px   0px, 0px   0px, 80px  0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1.25) should be [50px auto, 50px 50px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px  20px, 0px  20px, 70px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.75) should be [15px 15px, 30px 30px, 45px 45px,  75px  75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1) should be [20.0px 20.0px,  0.0px  0.0px, 20.0px 20.0px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1) should be [20px 20px, 40px 40px, 60px 60px, 100px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.75) should be [17.5px 17.5px,  2.5px  2.5px, 17.5px 17.5px,  2.5px  2.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [ 0px  0px, 80px   0px, 0px   0px, 90px  0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (-0.3) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.3) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.3) should be [0px auto, 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1.25) should be [22.5px 22.5px,  0.0px  0.0px, 22.5px 22.5px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (-0.3) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (-0.25) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (1.25) should be [100px, 100px, 100px, 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0) should be [ 0px  0px,  0px  0px,  0px  0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0) should be [10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15.0px 15.0px,  5.0px  5.0px, 15.0px 15.0px,  5.0px  5.0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (0.5) should be [ 40px,  40px,  40px,  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.5) should be [20px 20px, 80px  40px, 0px  40px, 60px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1.25) should be [25px 25px, 50px 50px, 75px 75px, 125px 125px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.25) should be [10px auto, 10px 10px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (1) should be [20px 20px, 40px 40px, 60px 60px, 100px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.75) should be [30px auto, 30px 30px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (-0.25) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1.25) should be [50px auto, 50px 50px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.75) should be [30px 30px, 80px  60px, 0px  60px, 50px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.25) should be [10px auto, 10px 10px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0) should be [10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px, 10.0px 10.0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (1) should be [40px auto, 40px 40px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (-0.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (-0.25) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.3) should be [0px 0px, 0px 0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [40px 40px, 80px  80px, 0px  80px, 40px 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.25) should be [ 20px  20px,  20px  20px,  20px  20px,  20px  20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1) should be [20.0px 20.0px,  0.0px  0.0px, 20.0px 20.0px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1) should be [ 20px  20px,   0px   0px,  20px  20px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (-0.25) should be [ 0px auto,  0px  0px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1.5) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (-0.25) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15.0px 15.0px,  5.0px  5.0px, 15.0px 15.0px,  5.0px  5.0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [ 80px  80px,  75px  75px,  80px  80px,  75px  75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px\] to [80px\] at (0) should be [  0px,   0px,   0px,   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1.5) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.25) should be [ 5px  5px, 10px 10px, 15px 15px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (1) should be [ 80px,  80px,  80px,  80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.5) should be [ 60px  60px,  50px  50px,  60px  60px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px  20px, 0px  20px, 70px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1.5) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px\] to [80px\] at (0.75) should be [ 60px,  60px,  60px,  60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1) should be [20.0px 20.0px,  0.0px  0.0px, 20.0px 20.0px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [ 0px  0px, 80px   0px, 0px   0px, 80px  0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px  20px, 0px  20px, 70px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.5) should be [15.0px 15.0px,  5.0px  5.0px, 15.0px 15.0px,  5.0px  5.0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0) should be [ 0px  0px,  0px  0px,  0px  0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, 0px 0px, 0px 0px\] to [20px 20px, 40px 40px, 60px 60px, 100px 100px\] at (0.5) should be [10px 10px, 20px 20px, 30px 30px,  50px  50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (1) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px\] to [80px\] at (0.25) should be [ 20px,  20px,  20px,  20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1) should be [40px 40px, 80px  80px, 0px  80px, 40px 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (1) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (1) should be [ 80px  80px,  80px  80px,  80px  80px,  80px  80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 0px 0px, contain, cover\] to [40px 40px, 40px 40px, cover, contain\] at (0.6) should be [40px 40px, 40px 40px, cover, contain\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (1) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.75) should be [ 40px  40px,  25px  25px,  40px  40px,  25px  25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from neutral to [20px 20px, 0px 0px\] at (0.25) should be [12.5px 12.5px,  7.5px  7.5px, 12.5px 12.5px,  7.5px  7.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (-0.25) should be [ 0px  0px, 80px   0px, 0px   0px, 90px  0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (1.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0) should be [ 0px  0px, 80px   0px, 0px   0px, 80px  0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (-0.25) should be [120px 120px, 125px 125px, 120px 120px, 125px 125px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px\] to [80px 80px\] at (0.5) should be [ 40px  40px,  40px  40px,  40px  40px,  40px  40px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from neutral to [20px 20px, 0px 0px\] at (1) should be [20.0px 20.0px,  0.0px  0.0px, 20.0px 20.0px,  0.0px  0.0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (1.25) should be [50px 50px, 80px 100px, 0px 100px, 30px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px\] to [80px\] at (1) should be [ 80px,  80px,  80px,  80px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.75) should be [30px auto, 30px 30px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.5) should be [20px auto, 20px 20px, contain, cover\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (1.25) should be [100px 100px, 100px 100px, 100px 100px, 100px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px\] to [80px 80px\] at (0) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [0px 0px\] to [80px 80px\] at (-0.25) should be [  0px   0px,   0px   0px,   0px   0px,   0px   0px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [initial\] to [20px 20px, 0px 0px\] at (1.5) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <background-size> from [0px auto, 0px 0px, contain, cover\] to [40px auto, 40px 40px, contain, cover\] at (0.25) should be [10px auto, 10px 10px, contain, cover\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px 0px, 80px 0px\] to [40px 40px, 80px 80px, 0px 80px\] at (0.25) should be [10px 10px, 80px  20px, 0px  20px, 70px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [0px auto, 0px 0px\] to [auto 40px, 40px 40px\] at (0.5) should be [auto 40px, 40px 40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <background-size> from [inherit\] to [20px 20px, 0px 0px\] at (0.25) should be [ 80px  80px,  75px  75px,  80px  80px,  75px  75px\]]
+    expected: FAIL
+
+  [Web Animations: property <background-size> from [unset\] to [20px 20px, 0px 0px\] at (0.6) should be [20px 20px, 0px 0px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-color-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-color-interpolation.html.ini
index a39ea79eafd..5d0b1e349ff 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-color-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-color-interpolation.html.ini
@@ -1,5 +1,349 @@
 [border-color-interpolation.html]
-  expected: ERROR
   [border-color interpolation]
     expected: FAIL
 
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [rgb(23, 33, 43) rgb(40, 50, 60) rgb(17, 27, 37) rgb(37, 47, 57)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [rgb(17, 27, 37) rgb(40, 50, 60) rgb(23, 33, 43) rgb(43, 53, 63)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (0) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [rgb(14, 24, 34) rgb(40, 50, 60) rgb(26, 36, 46) rgb(46, 56, 66)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [rgb(20, 30, 40) rgb(40, 50, 60)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [rgb(5, 15, 25) rgb(40, 50, 60) rgb(35, 45, 55) rgb(55, 65, 75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (0) should be [rgb(0, 0, 139)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [rgb(14, 24, 34) rgb(40, 50, 60) rgb(26, 36, 46) rgb(46, 56, 66)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [rgb(5, 15, 25) rgb(40, 50, 60) rgb(35, 45, 55) rgb(55, 65, 75)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (0) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [rgb(17, 27, 37) rgb(40, 50, 60) rgb(23, 33, 43) rgb(43, 53, 63)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (-0.3) should be [rgb(255, 255, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [rgb(14, 24, 34) rgb(40, 50, 60) rgb(26, 36, 46) rgb(46, 56, 66)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [rgb(20, 30, 40) rgb(40, 50, 60)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [rgb(20, 30, 40) rgb(40, 50, 60)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0) should be [rgb(20, 30, 40) rgb(40, 50, 60)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (0.3) should be [rgb(77, 50, 97)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [rgb(5, 15, 25) rgb(40, 50, 60) rgb(35, 45, 55) rgb(55, 65, 75)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [rgb(23, 33, 43) rgb(40, 50, 60) rgb(17, 27, 37) rgb(37, 47, 57)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [inherit\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from neutral to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.6) should be [rgb(14, 24, 34) rgb(40, 50, 60) rgb(26, 36, 46) rgb(46, 56, 66)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [unset\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from neutral to [orange\] at (0.6) should be [rgb(153, 99, 56)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1.5) should be [rgb(5, 15, 25) rgb(40, 50, 60) rgb(35, 45, 55) rgb(55, 65, 75)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [initial\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (1) should be [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [rgb(17, 27, 37) rgb(40, 50, 60) rgb(23, 33, 43) rgb(43, 53, 63)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from [initial\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [rgb(23, 33, 43) rgb(40, 50, 60) rgb(17, 27, 37) rgb(37, 47, 57)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-color> from [unset\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (0.3) should be [rgb(17, 27, 37) rgb(40, 50, 60) rgb(23, 33, 43) rgb(43, 53, 63)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-color> from neutral to [orange\] at (-0.3) should be [rgb(0, 0, 181)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [initial\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-color> from [rgb(20, 30, 40) rgb(40, 50, 60)\] to [rgb(10, 20, 30) rgb(40, 50, 60) rgb(30, 40, 50) rgb(50, 60, 70)\] at (-0.3) should be [rgb(23, 33, 43) rgb(40, 50, 60) rgb(17, 27, 37) rgb(37, 47, 57)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-color> from [inherit\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-outset-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-outset-interpolation.html.ini
index 3847c277f7b..324dea72116 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-outset-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-outset-interpolation.html.ini
@@ -1,5 +1,397 @@
 [border-image-outset-interpolation.html]
-  expected: ERROR
   [border-image-outset interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (1) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0) should be [1 2 3px 4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1) should be [101 102 103px 104px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (0) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (1) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0px\] to [5px\] at (0.3) should be [1.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (0.3) should be [1.3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (-0.3) should be [0 0 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (0.3) should be [7.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (1) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0px\] to [5px\] at (0.6) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (1.5) should be [2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (-0.3) should be [0.7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (-0.3) should be [12.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [inherit\] to [2px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0) should be [1 2 3px 4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1.5) should be [151 152 153px 154px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.6) should be [61 62 63px 64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [unset\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (1.5) should be [7.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (1) should be [101 102 103px 104px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [1 2 3px 4px\] to [101 102 103px 104px\] at (0.3) should be [31 32 33px 34px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from neutral to [2px\] at (0.6) should be [1.6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0px\] to [5px\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [inherit\] to [2px\] at (1) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-outset> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-outset> from [inherit\] to [2px\] at (0.6) should be [5.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-outset> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html.ini
new file mode 100644
index 00000000000..ee608380711
--- /dev/null
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html.ini
@@ -0,0 +1,4 @@
+[border-image-slice-interpolation-stability.html]
+  [border-image-slice interpolation stability]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
index 1cc3b63b10e..656499aef00 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-slice-interpolation.html.ini
@@ -1,5 +1,781 @@
 [border-image-slice-interpolation.html]
-  expected: ERROR
   [border-image-slice interpolation]
     expected: FAIL
 
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (1.5) should be [100\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1) should be [40% 50% 60% 70%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.6) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1) should be [40% 50% 60% 70%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.5) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0) should be [0% 10% 20% 30%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.6) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.6) should be [100 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0) should be [0 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.3) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.6) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1.5) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1) should be [40 50 60 70 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (-0.3) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1.5) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.5) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.3) should be [0% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1.5) should be [100 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0) should be [0 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0.3) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1.5) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0.6) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (1.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.5) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1.5) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (-0.3) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (-0.3) should be [50% fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (-0.3) should be [62%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.6) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (-0.3) should be [50% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0.5) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0) should be [20%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (1.5) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (1.5) should be [75%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.3) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.3) should be [0% fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (1) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (1) should be [100\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0) should be [50% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.3) should be [50% fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.3) should be [38%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1) should be [100 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (-0.3) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.6) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [initial\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (-0.3) should be [0% fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (0.3) should be [17%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (0.6) should be [14%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.5) should be [20% 30% 40% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (-0.5) should be [0% 0 0% 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (0.5) should be [40 50 60% 70\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0) should be [50% fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0) should be [0% 10% 20% 30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.3) should be [12% 22 32% 42 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0) should be [0% fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1) should be [40% 50 60% 70 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.5) should be [20 30 40 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1) should be [40 50 60 70 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from neutral to [10%\] at (-0.3) should be [23%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.5) should be [40% 50 60% 70\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70\] at (0.3) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (0) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [inherit\] to [10%\] at (0.6) should be [26%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from neutral to [10%\] at (1.5) should be [5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.6) should be [24% 34 44% 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [unset\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1.5) should be [100 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [initial\] to [10%\] at (-0.3) should be [127%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [initial\] to [10%\] at (0.6) should be [46%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (1.5) should be [60% 70% 80% 90%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (1) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.5) should be [100 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.5) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (1) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (-0.5) should be [0% 0% 0% 10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0.5) should be [30%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10 20 30 fill\] to [40 50 60% 70\] at (-0.3) should be [0% 10 20 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (0.6) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [inherit\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (1.5) should be [100\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [unset\] to [10%\] at (0.5) should be [55%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (0.3) should be [73%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.6) should be [24% 34% 44% 54%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (-0.3) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [50%\] to [100\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.5) should be [25%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [inherit\] to [10%\] at (1) should be [10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (0.6) should be [100 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1) should be [40% 50 60% 70 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0%\] to [50%\] at (0.3) should be [15%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [inherit\] to [10%\] at (0) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0.5) should be [20% 30 40% 50 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50%\] to [100\] at (1) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [50% fill\] to [100 fill\] at (1) should be [100 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0% 10% 20% 30%\] to [40% 50% 60% 70%\] at (0.3) should be [12% 22% 32% 42%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [unset\] to [10%\] at (1.5) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.6) should be [24 34 44 54 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (0) should be [0% 10 20% 30 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (1.5) should be [60 70 80 90 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (0.3) should be [12 22 32 42 fill\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% 10 20% 30 fill\] to [40% 50 60% 70 fill\] at (1.5) should be [60% 70 80% 90 fill\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-slice> from [0%\] to [50%\] at (0.6) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-slice> from [0 10 20 30 fill\] to [40 50 60 70 fill\] at (-0.5) should be [0 0 0 10 fill\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-slice> from [0%\] to [50%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-slice> from [0% fill\] to [50%\] at (0.6) should be [50%\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-source-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-source-interpolation.html.ini
index 246ab3baf12..e06c338651e 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-source-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-source-interpolation.html.ini
@@ -1,5 +1,550 @@
 [border-image-source-interpolation.html]
-  expected: ERROR
   [border-image-source interpolation]
     expected: FAIL
 
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (-0.3) should be [inherit\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (-0.3) should be [inherit\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0) should be [inherit\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.3) should be [inherit\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (-0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0) should be [inherit\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (0) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [url(../support/orange_color.png)\] at (0.3) should be [url(../support/aqua_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (1.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (1.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [initial\] to [url(../support/orange_color.png)\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.6) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [url(../support/aqua_color.png)\] to [linear-gradient(45deg, blue, orange)\] at (1) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (0) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (1) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.3) should be [inherit\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (-0.3) should be [linear-gradient(-45deg, red, yellow)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [none\] to [url(../support/orange_color.png)\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [unset\] to [url(../support/orange_color.png)\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.5) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-source> from [inherit\] to [url(../support/orange_color.png)\] at (0.6) should be [url(../support/orange_color.png)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-source> from [linear-gradient(-45deg, red, yellow)\] to [linear-gradient(45deg, blue, orange)\] at (0.5) should be [linear-gradient(45deg, blue, orange)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-width-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
index 66174906c6a..ab26ad61824 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-image-width-interpolation.html.ini
@@ -1,5 +1,952 @@
 [border-image-width-interpolation.html]
-  expected: ERROR
   [border-image-width interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px  95%  75  55px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1.5) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.5) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (1.5) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.6) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.5) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.5) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(7px + 6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0) should be [ 10px auto auto  20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [ 40px auto auto  50\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(4px + 12%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0) should be [10px  20%  30  40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(13px + -6%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [ 70px auto auto  80\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (1.5) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (1.5) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (1.5) should be [20%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px  35%  39  43px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(-5px + 30%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1) should be [80px  70%  60  50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px  95%  75  55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(-5px + 30%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [  0px auto auto   0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (1.5) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1.5) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (-0.3) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px   5%  21  37px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [ 70px auto auto  80\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (1.5) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% + -6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (-0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [  0px auto auto   0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (10) should be [200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.3) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px  50%  48  46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (-0.3) should be [10%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(-5px + 30%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(4px + 12%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(13px + -6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (0.6) should be [calc(4% + 12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(7px + 6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1) should be [110px auto auto 120\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px  50%  48  46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (1.5) should be [calc(-5% + 30px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% + -6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (-0.3) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(4px + 12%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (1.5) should be [30%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180  90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px  50%  48  46px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.6) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1) should be [80px  70%  60  50px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.6) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px   5%  21  37px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180  90px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px  35%  39  43px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.5) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [ 70px auto auto  80\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.3) should be [76px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [ 40px auto auto  50\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (0.5) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (10) should be [200\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180  90px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(13px + -6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% + -6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20px\] at (0.3) should be [calc(7% + 6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (0.6) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px  35%  39  43px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.6) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.6) should be [20%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [ 40px auto auto  50\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (0) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.6) should be [52px  50%  48  46px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px  95%  75  55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px   5%  21  37px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [inherit\] to [20px\] at (-0.3) should be [124px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (10) should be [110px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (1) should be [110px auto 120 auto\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (0.6) should be [calc(4px + 12%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (1.5) should be [115px  95%  75  55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0) should be [ 10px auto auto  20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (0.3) should be [10%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10%\] to [20px\] at (-0.3) should be [calc(13% + -6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1) should be [110px auto auto 120\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (1.5) should be [calc(-5px + 30%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.3) should be [ 40px auto auto  50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (0.6) should be [12%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [  0px auto auto   0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (-0.3) should be [0px   5%  21  37px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0) should be [calc(0% + 10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (5) should be [360px 270% 180  90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0.3) should be [31px  35%  39  43px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (-0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0%\] to [20%\] at (0.3) should be [6%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20px\] at (0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20px\] at (1) should be [calc(0% + 20px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0px\] to [20px\] at (5) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto 120 auto\] at (-0.3) should be [10px auto auto 20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (5) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0) should be [10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (-0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10\] to [20%\] at (0.3) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(7px + 6%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0%\] to [20%\] at (5) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0\] to [20\] at (5) should be [100\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (0) should be [10px  20%  30  40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0.3) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20%\] at (0.6) should be [20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20\] at (0.5) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [0px\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (0.6) should be [ 70px auto auto  80\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10%\] to [20\] at (0.6) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (-0.3) should be [calc(13px + -6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [inherit\] to [20px\] at (0.6) should be [52px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (-0.3) should be [  0px auto auto   0\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [initial\] to [20px\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px\] to [20%\] at (0.3) should be [calc(7px + 6%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [0px\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10px auto auto 20\] to [110px auto auto 120\] at (1.5) should be [160px auto auto 170\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [10px 20% 30 40px\] to [80px 70% 60 50px\] at (10) should be [710px 520% 330 140px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10\] to [20px\] at (0) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [inherit\] to [20px\] at (10) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20%\] at (1) should be [20%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-image-width> from [0%\] to [20%\] at (10) should be [200%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [10%\] to [20\] at (0.3) should be [10%\]]
+    expected: FAIL
+
+  [Web Animations: property <border-image-width> from [10px\] to [20\] at (0.3) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-image-width> from [0\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-radius-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-radius-interpolation.html.ini
index 5572f3b9754..fdf5b5f149a 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-radius-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-radius-interpolation.html.ini
@@ -1,5 +1,490 @@
 [border-radius-interpolation.html]
-  expected: ERROR
   [border-radius interpolation]
     expected: FAIL
 
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [17px 37px 57px 77px / 117px 137px 157px 177px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (1) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [23px 43px 63px 83px / 123px 143px 163px 183px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0) should be [calc(10px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [26px 46px 66px 86px / 126px 146px 166px 186px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [35px 55px 75px 95px / 135px 155px 175px 195px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(4px + 60%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [30px 50px 70px 90px / 130px 150px 170px 190px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(4px + 60%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [26px 46px 66px 86px / 126px 146px 166px 186px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [17px 37px 57px 77px / 117px 137px 157px 177px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(13px + -30%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (1) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [30px 50px 70px 90px / 130px 150px 170px 190px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(13px + -30%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (0.6) should be [34px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1) should be [10px 30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [17px 37px 57px 77px / 117px 137px 157px 177px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [20px 40px 60px 80px / 120px 140px 160px 180px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [23px 43px 63px 83px / 123px 143px 163px 183px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(13px + -30%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(-5px + 150%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0) should be [calc(10px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [20px 40px 60px 80px / 120px 140px 160px 180px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(7px + 30%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [23px 43px 63px 83px / 123px 143px 163px 183px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(-5px + 150%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [30px 50px 70px 90px / 130px 150px 170px 190px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(7px + 30%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.3) should be [23px 43px 63px 83px / 123px 143px 163px 183px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [26px 46px 66px 86px / 126px 146px 166px 186px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [35px 55px 75px 95px / 135px 155px 175px 195px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [35px 55px 75px 95px / 135px 155px 175px 195px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [10px\] to [100%\] at (-0.3) should be [calc(13px + -30%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [20px 40px 60px 80px / 120px 140px 160px 180px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1.5) should be [35px 55px 75px 95px / 135px 155px 175px 195px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-2) should be [40px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (1) should be [30px 50px 70px 90px / 130px 150px 170px 190px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0) should be [20px 40px 60px 80px / 120px 140px 160px 180px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [50px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (0.6) should be [26px 46px 66px 86px / 126px 146px 166px 186px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (1.5) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-radius> from [20px 40px 60px 80px / 120px 140px 160px 180px\] to [30px 50px 70px 90px / 130px 150px 170px 190px\] at (-0.3) should be [17px 37px 57px 77px / 117px 137px 157px 177px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (-0.3) should be [23px 17px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [50px\] at (0.3) should be [22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(-5px + 150%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (1.5) should be [calc(-5px + 150%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(7px + 30%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [20px\] to [10px 30px\] at (1.5) should be [5px 35px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(4px + 60%)\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.3) should be [17px 23px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (0.3) should be [calc(7px + 30%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [20px\] to [10px 30px\] at (0.6) should be [14px 26px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-left-radius> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-left-radius> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-left-radius> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-left-radius> from [10px\] to [100%\] at (0.6) should be [calc(4px + 60%)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/border-width-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/border-width-interpolation.html.ini
index ba1236f53f7..1155976c43e 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/border-width-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/border-width-interpolation.html.ini
@@ -1,5 +1,646 @@
 [border-width-interpolation.html]
-  expected: ERROR
   [border-width interpolation]
     expected: FAIL
 
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (1) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (1) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [23px 43px 63px 83px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [26px 46px 66px 86px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [0.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (0) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [0.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (1) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [30px 50px 70px 90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (1) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [35px 55px 75px 95px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [35px 55px 75px 95px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [23px 43px 63px 83px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (0) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [30px 50px 70px 90px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [26px 46px 66px 86px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [20px 40px 60px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (0) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [0.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (0) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [35px 55px 75px 95px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [23px 43px 63px 83px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.3) should be [23px 43px 63px 83px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (0) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [17px 37px 57px 77px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [26px 46px 66px 86px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [17px 37px 57px 77px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-top-width> from [15px\] to [thick\] at (1.5) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [20px 40px 60px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (-2) should be [35px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [20px 40px 60px 80px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0.6) should be [26px 46px 66px 86px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [30px 50px 70px 90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [17px 37px 57px 77px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [medium\] to [13px\] at (-0.25) should be [0.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1) should be [30px 50px 70px 90px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (1) should be [11px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (0.3) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [medium\] to [13px\] at (1.5) should be [18px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (1.5) should be [35px 55px 75px 95px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-top-width> from [15px\] to [thick\] at (-0.3) should be [18px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-right-width> from [thin\] to [11px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [0px\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (0) should be [20px 40px 60px 80px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (0.6) should be [9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [inherit\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [medium\] to [13px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (1.5) should be [28.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-left-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (0.3) should be [4px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [inherit\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (0) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (0.6) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [initial\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-right-width> from [thin\] to [11px\] at (1) should be [11px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-width> from [20px 40px 60px 80px\] to [30px 50px 70px 90px\] at (-0.3) should be [17px 37px 57px 77px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-top-width> from [15px\] to [thick\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-bottom-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-top-width> from [15px\] to [thick\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-right-width> from [thin\] to [11px\] at (1.5) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-bottom-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [medium\] to [13px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <border-left-width> from [unset\] to [20px\] at (0.6) should be [13.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <border-left-width> from [0px\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <border-left-width> from [unset\] to [20px\] at (0.3) should be [8.1px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini b/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
index 2b13dd777be..d61b97406d9 100644
--- a/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-backgrounds/animations/box-shadow-interpolation.html.ini
@@ -1,5 +1,637 @@
 [box-shadow-interpolation.html]
-  expected: ERROR
   [box-shadow-interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 7px 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 13px 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1.5) should be [rgba(0, 0, 0, 0) -5px -10px 0px 0px, rgba(0, 0, 0, 0) -2.5px -15px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 25px 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 25px 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.3) should be [rgba(255, 255, 0, 0.353) 7px 14px 0px 0px, rgba(0, 128, 0, 0.7) 3.5px 21px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1) should be [rgb(0, 128, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.3) should be [rgb(0, 38, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.3) should be [rgba(255, 255, 0, 0.353) 7px 14px 0px 0px, rgba(0, 128, 0, 0.7) 3.5px 21px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0) should be [rgb(0, 0, 0) 10px 30px 10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 16px 24px 16px 24px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 15px 25px 15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 13px 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 16px 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (-0.3) should be [rgba(255, 255, 0, 0.65) 13px 26px 0px 0px, rgb(0, 166, 0) 6.5px 39px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.6) should be [rgba(255, 255, 0, 0.2) 4px 8px 0px 0px, rgba(0, 128, 0, 0.4) 2px 12px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.3) should be [rgba(255, 255, 0, 0.353) 7px 14px 0px 0px, rgba(0, 128, 0, 0.7) 3.5px 21px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.6) should be [rgba(255, 255, 0, 0.2) 4px 8px 0px 0px, rgba(0, 128, 0, 0.4) 2px 12px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0) should be [rgba(255, 255, 0, 0.5) 10px 20px 0px 0px, rgb(0, 128, 0) 5px 30px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0) should be [rgb(0, 0, 0) 30px 10px 30px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.3) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 33px 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.6) should be [rgba(255, 255, 0, 0.2) 4px 8px 0px 0px, rgba(0, 128, 0, 0.4) 2px 12px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.3) should be [rgba(255, 255, 0, 0.353) 7px 14px 0px 0px, rgba(0, 128, 0, 0.7) 3.5px 21px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1.5) should be [rgba(0, 0, 0, 0) -5px -10px 0px 0px, rgba(0, 0, 0, 0) -2.5px -15px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (-0.3) should be [rgba(255, 255, 0, 0.65) 13px 26px 0px 0px, rgb(0, 166, 0) 6.5px 39px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 33px 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1) should be [rgb(0, 128, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0) should be [rgb(0, 0, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (-0.3) should be [rgba(255, 255, 0, 0.65) 13px 26px 0px 0px, rgb(0, 166, 0) 6.5px 39px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.6) should be [rgb(0, 77, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 15px 25px 15px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0.6) should be [rgba(255, 255, 0, 0.2) 4px 8px 0px 0px, rgba(0, 128, 0, 0.4) 2px 12px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.6) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 33px 7px 33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 7px 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 33px 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.6) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.6) should be [rgba(0, 0, 0, 0.6) 12px 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1.5) should be [rgb(0, 192, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.3) should be [rgb(0, 38, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 16px 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.6) should be [rgb(0, 77, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 27px 13px 27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1.5) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1.5) should be [rgb(0, 192, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 16px 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1) should be [rgb(0, 128, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (-0.3) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1.5) should be [rgba(0, 0, 0, 0) -5px -10px 0px 0px, rgba(0, 0, 0, 0) -2.5px -15px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 25px 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.5) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 15px 25px 15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (-0.3) should be [rgba(255, 255, 0, 0.65) 13px 26px 0px 0px, rgb(0, 166, 0) 6.5px 39px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 27px 13px 27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 27px 13px 27px 13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 24px 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 7px 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 13px 27px 13px 27px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 24px 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (-0.3) should be [rgb(0, 0, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 25px 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.3) should be [rgb(0, 38, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.5) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (-0.3) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.6) should be [rgb(0, 77, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.3) should be [rgb(0, 38, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (0.6) should be [rgb(0, 77, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 24px 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0) should be [rgb(0, 0, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (1) should be [rgb(0, 128, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px 3px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1.5) should be [rgb(0, 192, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1) should be [rgba(0, 0, 0, 0) 0px 0px 0px 0px, rgba(0, 0, 0, 0) 0px 0px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 30px 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (1.5) should be [rgba(0, 0, 0, 0) -5px -10px 0px 0px, rgba(0, 0, 0, 0) -2.5px -15px 0px 0px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [initial\] to [20px 20px 20px 20px black\] at (1) should be [rgb(0, 0, 0) 20px 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px rgba(255, 255, 0, 0.5), inset 5px 10em #008000\] to [none\] at (0) should be [rgba(255, 255, 0, 0.5) 10px 20px 0px 0px, rgb(0, 128, 0) 5px 30px 0px 0px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 27px 13px 27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px\] at (1.5) should be [rgb(0, 192, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (-0.3) should be [rgb(0, 0, 0) 7px 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (0.3) should be [rgba(0, 0, 0, 0.3) 6px 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (-0.3) should be [rgb(0, 0, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [unset\] to [20px 20px 20px 20px black\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px -6px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px -4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px inset\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0) should be [rgb(0, 0, 0) 30px 10px 30px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from neutral to [20px 20px 20px 20px black\] at (0.3) should be [rgb(0, 0, 0) 13px 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (0.6) should be [rgb(0, 0, 0) 24px 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (1.5) should be [inset 5px 10px green, 15px 20px blue\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [inherit\] to [20px 20px 20px 20px black\] at (1.5) should be [rgb(0, 0, 0) 15px 25px 15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [black 15px 10px 5px 6px\] to [orange -15px -10px 25px -4px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px -9px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <box-shadow> from [10px 10px 10px 10px black\] to [10px 10px 10px 10px currentColor\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <box-shadow> from [15px 10px 5px 6px black inset\] to [-15px -10px 25px -4px orange inset\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px 9px inset\]]
+    expected: FAIL
+
+  [CSS Animations: property <box-shadow> from [10px 20px yellow, 5px 10px green\] to [inset 5px 10px green, 15px 20px blue\] at (0.3) should be [10px 20px yellow, 5px 10px green\]]
+    expected: FAIL
+
+  [Web Animations: property <box-shadow> from [15px 10px 5px 6px black\] to [-15px -10px 25px -4px orange\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px 0px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-color/animation/color-interpolation.html.ini b/tests/wpt/metadata/css/css-color/animation/color-interpolation.html.ini
index 6aebd4bda19..4713c185673 100644
--- a/tests/wpt/metadata/css/css-color/animation/color-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-color/animation/color-interpolation.html.ini
@@ -1,5 +1,268 @@
 [color-interpolation.html]
-  expected: ERROR
   [color interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from neutral to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-color/animation/opacity-interpolation.html.ini b/tests/wpt/metadata/css/css-color/animation/opacity-interpolation.html.ini
index eb473ba082f..eeca99e7580 100644
--- a/tests/wpt/metadata/css/css-color/animation/opacity-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-color/animation/opacity-interpolation.html.ini
@@ -1,5 +1,283 @@
 [opacity-interpolation.html]
-  expected: ERROR
   [opacity interpolation]
     expected: FAIL
 
+  [Web Animations: property <opacity> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from neutral to [0.2\] at (0.3) should be [0.13\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [inherit\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [unset\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [initial\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [initial\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [inherit\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [unset\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from neutral to [0.2\] at (0.6) should be [0.16\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (0.3) should be [0.62\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [0\] to [1\] at (1.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from neutral to [0.2\] at (-0.3) should be [0.07\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [unset\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [unset\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (0.3) should be [0.13\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [0\] to [1\] at (1.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from neutral to [0.2\] at (0.3) should be [0.13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [inherit\] to [0.2\] at (-0.3) should be [0.98\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (-0.3) should be [0.98\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [initial\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [initial\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from neutral to [0.2\] at (1.5) should be [0.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [inherit\] to [0.2\] at (0.3) should be [0.62\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from neutral to [0.2\] at (-0.3) should be [0.07\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [unset\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [inherit\] to [0.2\] at (-0.3) should be [0.98\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from neutral to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from neutral to [0.2\] at (0.6) should be [0.16\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from neutral to [0.2\] at (0.6) should be [0.16\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (1.5) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from neutral to [0.2\] at (-0.3) should be [0.07\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (0.6) should be [0.44\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [unset\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from neutral to [0.2\] at (0.3) should be [0.13\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [unset\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [0\] to [1\] at (1.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from neutral to [0.2\] at (1.5) should be [0.25\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (1) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [initial\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (0.6) should be [0.44\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [unset\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [inherit\] to [0.2\] at (0.6) should be [0.44\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from neutral to [0.2\] at (1.5) should be [0.25\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (0.6) should be [0.16\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (0) should be [0.8\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [inherit\] to [0.2\] at (0) should be [0.8\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (1.5) should be [0.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [inherit\] to [0.2\] at (0.3) should be [0.62\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (0) should be [0.1\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from neutral to [0.2\] at (-0.3) should be [0.07\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <opacity> from [inherit\] to [0.2\] at (0.6) should be [0.44\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <opacity> from [initial\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Transitions: property <opacity> from [initial\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (0.3) should be [0.76\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (-0.3) should be [0.98\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [initial\] to [0.2\] at (0.6) should be [0.52\]]
+    expected: FAIL
+
+  [CSS Animations: property <opacity> from [inherit\] to [0.2\] at (0.3) should be [0.62\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/animation/flex-basis-interpolation.html.ini b/tests/wpt/metadata/css/css-flexbox/animation/flex-basis-interpolation.html.ini
index 152e807d6df..a3311791e91 100644
--- a/tests/wpt/metadata/css/css-flexbox/animation/flex-basis-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-flexbox/animation/flex-basis-interpolation.html.ini
@@ -1,5 +1,313 @@
 [flex-basis-interpolation.html]
-  expected: ERROR
   [flex-basis interpolation]
     expected: FAIL
 
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.6) should be [2%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (0) should be [1%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (1.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (-0.3) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (0) should be [3%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.6) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (1.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from neutral to [2%\] at (0.3) should be [1.3%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (1.5) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0.6) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [initial\] to [2%\] at (1.5) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from neutral to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (1.5) should be [2.5%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0%\] to [100%\] at (1.5) should be [150%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (0.3) should be [2.7%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [0%\] to [100%\] at (0.6) should be [60%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [unset\] to [2%\] at (1) should be [2%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (0) should be [3%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-basis> from neutral to [2%\] at (0.6) should be [1.6%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (0.4) should be [40%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0px\] to [100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (-0.3) should be [3.3%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from neutral to [2%\] at (-0.3) should be [0.7%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [unset\] to [2%\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [initial\] to [2%\] at (0.6) should be [2%\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [0px\] to [100px\] at (0.4) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-basis> from [inherit\] to [2%\] at (0.6) should be [2.4%\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-basis> from [0%\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-basis> from [inherit\] to [2%\] at (1.5) should be [1.5%\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/animation/flex-grow-interpolation.html.ini b/tests/wpt/metadata/css/css-flexbox/animation/flex-grow-interpolation.html.ini
index 1e5d4fe74f8..1b531d6b31d 100644
--- a/tests/wpt/metadata/css/css-flexbox/animation/flex-grow-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-flexbox/animation/flex-grow-interpolation.html.ini
@@ -1,5 +1,355 @@
 [flex-grow-interpolation.html]
-  expected: ERROR
   [flex-grow interpolation]
     expected: FAIL
 
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (0.3) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [unset\] to [2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-grow> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [1\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [initial\] to [2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [1\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [unset\] to [2\] at (1.5) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [unset\] to [2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-grow> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-grow> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-grow> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/animation/flex-shrink-interpolation.html.ini b/tests/wpt/metadata/css/css-flexbox/animation/flex-shrink-interpolation.html.ini
index e25706009be..d901dfb5e8b 100644
--- a/tests/wpt/metadata/css/css-flexbox/animation/flex-shrink-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-flexbox/animation/flex-shrink-interpolation.html.ini
@@ -1,5 +1,367 @@
 [flex-shrink-interpolation.html]
-  expected: ERROR
   [flex-shrink interpolation]
     expected: FAIL
 
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [1\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (-5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from neutral to [2\] at (-0.3) should be [1.35\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (0) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (0.6) should be [1.8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [0\] to [1\] at (0.6) should be [0.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [0\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [unset\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from neutral to [2\] at (0.3) should be [1.65\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [0\] to [1\] at (0.3) should be [0.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [1\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [1\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from neutral to [2\] at (1.5) should be [2.25\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [unset\] to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <flex-shrink> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <flex-shrink> from [initial\] to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <flex-shrink> from [unset\] to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-flexbox/animation/order-interpolation.html.ini b/tests/wpt/metadata/css/css-flexbox/animation/order-interpolation.html.ini
index a7e52670667..8ddab1a1163 100644
--- a/tests/wpt/metadata/css/css-flexbox/animation/order-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-flexbox/animation/order-interpolation.html.ini
@@ -1,5 +1,430 @@
 [order-interpolation.html]
-  expected: ERROR
   [order interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <order> from neutral to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [unset\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (0.6) should be [24\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (-3) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (-0.5) should be [35\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (-3) should be [60\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from neutral to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [initial\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [unset\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [10\] to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [unset\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [10\] to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [unset\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (0) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from neutral to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [unset\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (1.5) should be [15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from neutral to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from neutral to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [10\] to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [inherit\] to [20\] at (0.6) should be [24\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [initial\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [10\] to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [initial\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (-0.5) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [inherit\] to [20\] at (-3) should be [60\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (0) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (1.5) should be [15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [10\] to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (-0.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (0.3) should be [27\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [initial\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [inherit\] to [20\] at (0.3) should be [27\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (-3) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (-3) should be [60\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [2\] to [4\] at (-0.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [inherit\] to [20\] at (-0.5) should be [35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [initial\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [initial\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [unset\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [unset\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [2\] to [4\] at (-0.5) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (0) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [initial\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (0) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [2\] to [4\] at (-3) should be [-4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from neutral to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [10\] to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (-0.5) should be [35\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from neutral to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [inherit\] to [20\] at (0.3) should be [27\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from neutral to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [inherit\] to [20\] at (0.6) should be [24\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [10\] to [20\] at (0.3) should be [13\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [inherit\] to [20\] at (0.6) should be [24\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [initial\] to [20\] at (0.6) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [10\] to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [2\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (0) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [inherit\] to [20\] at (1.5) should be [15\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [inherit\] to [20\] at (1.5) should be [15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [inherit\] to [20\] at (-0.5) should be [35\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [initial\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from neutral to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [initial\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (0.3) should be [27\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from neutral to [20\] at (-3) should be [-20\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [unset\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [10\] to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [10\] to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (1.5) should be [25\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [inherit\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [unset\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [inherit\] to [20\] at (-3) should be [60\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [2\] to [4\] at (-3) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [initial\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [10\] to [20\] at (0.6) should be [16\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (0.3) should be [6\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from neutral to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from neutral to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (-0.5) should be [-10\]]
+    expected: FAIL
+
+  [CSS Animations: property <order> from [unset\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <order> from [initial\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (1) should be [20\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [unset\] to [20\] at (1.5) should be [30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <order> from [unset\] to [20\] at (-3) should be [-60\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (0) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <order> from [10\] to [20\] at (-0.5) should be [5\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/animations/font-size-adjust-interpolation.html.ini b/tests/wpt/metadata/css/css-fonts/animations/font-size-adjust-interpolation.html.ini
index 123c6e59ade..ceb9684ecda 100644
--- a/tests/wpt/metadata/css/css-fonts/animations/font-size-adjust-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/animations/font-size-adjust-interpolation.html.ini
@@ -1,5 +1,592 @@
 [font-size-adjust-interpolation.html]
-  expected: ERROR
   [font-size-adjust interpolation]
     expected: FAIL
 
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (1.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (0.3) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (-0.3) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (0.3) should be [0.36\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (1.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (0.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (1.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (1.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (0) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (0.3) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (0.6) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (1.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (-0.3) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (1.5) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (1.5) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (0.3) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (0.3) should be [1.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (1.5) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (-0.3) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (0.6) should be [0.72\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (0) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (0) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (1.5) should be [1.7\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (0.5) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0) should be [0.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.6) should be [0.8\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (0) should be [0.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (0) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [none\] to [1.2\] at (0.3) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0) should be [0.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (0) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [none\] to [1.2\] at (0.5) should be [1.2\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from neutral to [2\] at (-2) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [none\] to [1.2\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (0.3) should be [2.7\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (-0.3) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [none\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [initial\] to [2\] at (0) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (0.3) should be [0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from neutral to [2\] at (0.6) should be [1.6\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [initial\] to [2\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [unset\] to [2\] at (-2) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [inherit\] to [2\] at (-0.3) should be [3.3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [initial\] to [2\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from [initial\] to [2\] at (1) should be [2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (1.5) should be [2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (1) should be [1.2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [unset\] to [2\] at (0.6) should be [2.4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size-adjust> from neutral to [2\] at (-0.3) should be [0.7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size-adjust> from [inherit\] to [2\] at (1.5) should be [1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0\] to [1.2\] at (1.5) should be [1.8\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size-adjust> from [0\] to [1.2\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size-adjust> from [0.2\] to [1.2\] at (-0.3) should be [0\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-001.html.ini b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-001.html.ini
index 3cc169ca314..05e643b6fd0 100644
--- a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-001.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-001.html.ini
@@ -1,5 +1,358 @@
 [font-size-interpolation-001.html]
-  expected: ERROR
   [font-size interpolation]
     expected: FAIL
 
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (0) should be [4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (0) should be [4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (0.6) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [4px\] to [14px\] at (1) should be [14px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (0.6) should be [18.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (-2) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [inherit\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (0) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (0.3) should be [17.2px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [initial\] to [20px\] at (-0.3) should be [14.8px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [initial\] to [20px\] at (1.5) should be [22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [initial\] to [20px\] at (0) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [4px\] to [14px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [4px\] to [14px\] at (1.5) should be [19px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-002.html.ini b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-002.html.ini
index c430b0702af..16058b2082a 100644
--- a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-002.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-002.html.ini
@@ -1,5 +1,73 @@
 [font-size-interpolation-002.html]
-  expected: ERROR
   [font-size interpolation]
     expected: FAIL
 
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [unset\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [unset\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-003.html.ini b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-003.html.ini
index 41cc7a482cb..65a324053ac 100644
--- a/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-003.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/animations/font-size-interpolation-003.html.ini
@@ -1,5 +1,73 @@
 [font-size-interpolation-003.html]
-  expected: ERROR
   [font-size interpolation with zoom]
     expected: FAIL
 
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-size> from [10px\] to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-size> from [10px\] to [20px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <font-size> from [10px\] to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-size> from [10px\] to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/animations/font-variation-settings-interpolation.html.ini b/tests/wpt/metadata/css/css-fonts/animations/font-variation-settings-interpolation.html.ini
index e8f6869ab22..5dcbb2558f6 100644
--- a/tests/wpt/metadata/css/css-fonts/animations/font-variation-settings-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-fonts/animations/font-variation-settings-interpolation.html.ini
@@ -1,5 +1,868 @@
 [font-variation-settings-interpolation.html]
-  expected: ERROR
   [font-variation-settings interpolation]
     expected: FAIL
 
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.7) should be ['aaaa' 7, 'bbbb' 17, 'cccc' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.6) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (1) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.5) should be ['aaaa' -15, 'bbbb' 5, 'cccc' 25\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 15, 'bbbb' 25, 'cccc' 35\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0) should be ['test' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 15, 'bbbb' 25, 'cccc' 35\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.3) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.3) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (-0.5) should be ['test' 5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.6) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.5) should be ['aaaa' -5, 'bbbb' 5, 'cccc' 15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.7) should be ['aaaa' 21, 'bbbb' 17, 'cccc' 13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (1.5) should be ['test' 25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be ['aaaa' 45, 'bbbb' 25, 'cccc' 5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.3) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.6) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (1.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.7) should be ['aaaa' 7, 'bbbb' 17, 'cccc' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.6) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (-0.3) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1) should be ['aaaa' 30, 'bbbb' 20, 'cccc' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (0) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be ['aaaa' 45, 'bbbb' 25, 'cccc' 5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.7) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.6) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be ['aaaa' 45, 'bbbb' 25, 'cccc' 5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (-0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1) should be ['aaaa' 30, 'bbbb' 20, 'cccc' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.3) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (-0.5) should be ['test' 5\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (-0.5) should be ['test' 5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1) should be ['test' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.5) should be ['aaaa' -15, 'bbbb' 5, 'cccc' 25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1) should be ['test' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.3) should be ['aaaa' 9, 'bbbb' 13, 'cccc' 17\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (1) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.5) should be ['aaaa' -5, 'bbbb' 5, 'cccc' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0.3) should be ['test' 13\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (1) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (0.3) should be ['test' 13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (1.5) should be ['test' 25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ['test' 17\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0) should be ['test' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ['test' 17\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.3) should be ['aaaa' 9, 'bbbb' 13, 'cccc' 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 30, 'bbbb' 20\] to ['aaaa' 20, 'bbbb' 30\] at (3.40282e+38) should be ['aaaa' -3.40282e+38, 'bbbb' 3.40282e+38\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (0) should be ['test' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (0.3) should be ['test' 13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.6) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (1.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.3) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ['test' 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 30, 'bbbb' 20\] to ['aaaa' 20, 'bbbb' 30\] at (3.40282e+38) should be ['aaaa' -3.40282e+38, 'bbbb' 3.40282e+38\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.7) should be ['aaaa' 7, 'bbbb' 17, 'cccc' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.7) should be ['aaaa' 21, 'bbbb' 17, 'cccc' 13\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (1.5) should be ['test' 25\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (1.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.3) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.6) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0.7) should be ['test' 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.6) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.7) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.7) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.5) should be ['aaaa' -15, 'bbbb' 5, 'cccc' 25\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.3) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1) should be ['aaaa' 30, 'bbbb' 20, 'cccc' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (-0.3) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 30, 'bbbb' 20\] to ['aaaa' 20, 'bbbb' 30\] at (3.40282e+38) should be ['aaaa' -3.40282e+38, 'bbbb' 3.40282e+38\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 3, 'bbbb' 13, 'cccc' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 15, 'bbbb' 25, 'cccc' 35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (0) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be ['test' 50\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.3) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (-0.3) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.7) should be ['test' 27\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from neutral to ["test" 20\] at (-0.5) should be ['test' 5\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 30, 'bbbb' 20\] to ['aaaa' 20, 'bbbb' 30\] at (3.40282e+38) should be ['aaaa' -3.40282e+38, 'bbbb' 3.40282e+38\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1.5) should be ['aaaa' 45, 'bbbb' 25, 'cccc' 5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.5) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (1) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.6) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (-0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0.3) should be ['test' 13\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.3) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.6) should be ['test' 50\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0.3) should be ['test' 27\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (1) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.6) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.6) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.3) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (1.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from neutral to ["test" 20\] at (1.5) should be ['test' 25\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (-0.5) should be ['aaaa' -15, 'bbbb' 5, 'cccc' 25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [inherit\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.5) should be ['aaaa' -5, 'bbbb' 5, 'cccc' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1.5) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (-0.3) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.3) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 3, 'bbbb' 13, 'cccc' 23\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [inherit\] to ['test' 20\] at (-0.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [inherit\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.7) should be ['aaaa' 21, 'bbbb' 17, 'cccc' 13\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1.5) should be ['aaaa' 15, 'bbbb' 25, 'cccc' 35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [unset\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.3) should be ['aaaa' 9, 'bbbb' 13, 'cccc' 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.3) should be ['aaaa' 9, 'bbbb' 13, 'cccc' 17\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 3, 'bbbb' 13, 'cccc' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from neutral to ["test" 20\] at (0) should be ['test' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.7) should be ['aaaa' 7, 'bbbb' 17, 'cccc' 27\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (0.3) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0.7) should be ['aaaa' 21, 'bbbb' 17, 'cccc' 13\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (-0.3) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.6) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.6) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (-0.5) should be ['test' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.3) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (0.3) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (1) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (1) should be ['aaaa' 30, 'bbbb' 20, 'cccc' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from neutral to ["test" 20\] at (1) should be ['test' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['dddd' 10, 'eeee' 20, 'ffff' 30\] at (-0.3) should be ['dddd' 10, 'eeee' 20, 'ffff' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.6) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['cccc' 10, 'bbbb' 20, 'aaaa' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0.3) should be ['aaaa' 3, 'bbbb' 13, 'cccc' 23\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from [unset\] to ['test' 20\] at (0.7) should be ['test' 23\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [unset\] to ['test' 20\] at (0) should be ['test' 30\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.6) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from [initial\] to ['test' 50\] at (0.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from [initial\] to ['test' 50\] at (1.5) should be ['test' 50\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1.5) should be ['test' 35\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Animations: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (-0.5) should be ['aaaa' -5, 'bbbb' 5, 'cccc' 15\]]
+    expected: FAIL
+
+  [Web Animations: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (0.6) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (1) should be ['aaaa' 10, 'bbbb' 20, 'cccc' 30\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] to ['aaaa' 0, 'bbbb' 10\] at (1.5) should be ['aaaa' 0, 'bbbb' 10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to [normal\] at (1.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <font-variation-settings> from ['test' 20\] to [normal\] at (0.5) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['aaaa' 0, 'bbbb' 10, 'cccc' 20\] to ['aaaa' 10, 'bbbb' 20, 'cccc' 30\] at (0) should be ['aaaa' 0, 'bbbb' 10, 'cccc' 20\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <font-variation-settings> from ['test' 20\] to ['test' 30\] at (1) should be ['test' 30\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-fonts/standard-font-family-19.html.ini b/tests/wpt/metadata/css/css-fonts/standard-font-family-19.html.ini
new file mode 100644
index 00000000000..0a8511c11ed
--- /dev/null
+++ b/tests/wpt/metadata/css/css-fonts/standard-font-family-19.html.ini
@@ -0,0 +1,2 @@
+[standard-font-family-19.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-fonts/standard-font-family-20.html.ini b/tests/wpt/metadata/css/css-fonts/standard-font-family-20.html.ini
new file mode 100644
index 00000000000..03ea791f2a8
--- /dev/null
+++ b/tests/wpt/metadata/css/css-fonts/standard-font-family-20.html.ini
@@ -0,0 +1,2 @@
+[standard-font-family-20.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-images/animations/object-position-interpolation.html.ini b/tests/wpt/metadata/css/css-images/animations/object-position-interpolation.html.ini
index c0c7c0bf2f2..21f1c21b7a0 100644
--- a/tests/wpt/metadata/css/css-images/animations/object-position-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-images/animations/object-position-interpolation.html.ini
@@ -1,5 +1,640 @@
 [object-position-interpolation.html]
-  expected: ERROR
   [object-position-interpolation]
     expected: FAIL
 
+  [Web Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (0.5) should be [50px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (0.5) should be [calc(25% + 25px) calc(50% + 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (1) should be [100% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [initial\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [unset\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [top right\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (0.5) should be [50px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [50px 100px\] at (0.5) should be [calc(25% + 25px) calc(50% + 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 50%\] to [100% 100%\] at (-0.3) should be [35% 35%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (1.5) should be [125% 125%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [initial\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (-0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [50px 100px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [100px 200px\] to [0px 0px\] at (0.5) should be [50px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [top right\] at (1) should be [100% 0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [unset\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [50px 100px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [0px 0px\] at (-0.3) should be [65% 130%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (-0.3) should be [calc(65% + -15px) calc(130% + -30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [0px 0px\] at (0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.5) should be [75% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [initial\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [100px 200px\] to [0px 0px\] at (1.5) should be [-50px -100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [top right\] at (1.5) should be [125% -25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 50%\] to [100% 100%\] at (0.5) should be [75% 75%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (1.5) should be [calc(-25% + 75px) calc(-50% + 150px)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.3) should be [65% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [50px 100px\] at (-0.3) should be [calc(65% + -15px) calc(130% + -30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (1.5) should be [-50px -100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [100px 200px\] to [0px 0px\] at (-0.3) should be [130px 260px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [initial\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [50px 100px\] at (1) should be [calc(0% + 50px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [initial\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [50px 100px\] at (1.5) should be [calc(-25% + 75px) calc(-50% + 150px)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.9) should be [95% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from neutral to [20px 20px\] at (0.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [0px 0px\] at (0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [inherit\] to [20px 20px\] at (0.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [initial\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [initial\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [unset\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [unset\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (1) should be [calc(0% + 50px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [inherit\] to [20px 20px\] at (0.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [100px 200px\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [unset\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (1.5) should be [125% 125%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [unset\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [initial\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.5) should be [75% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (1.5) should be [125% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [100px 200px\] to [0px 0px\] at (0) should be [100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 50%\] to [100% 100%\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (1) should be [100% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [top right\] at (1.5) should be [125% -25%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [top right\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [unset\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (0.5) should be [75% 75%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (2) should be [150% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (1) should be [100% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [initial\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [top right\] at (1) should be [100% 0%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [unset\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [top right\] at (1.5) should be [125% -25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [top right\] at (0.5) should be [75% 25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (2) should be [150% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (1.5) should be [-50px -100px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [initial\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (2) should be [150% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (1) should be [100% 100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.3) should be [65% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [inherit\] to [20px 20px\] at (0.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [100px 200px\] to [0px 0px\] at (1.5) should be [-50px -100px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0) should be [center\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (-0.3) should be [35% 35%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [unset\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [top right\] at (0.5) should be [75% 25%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from neutral to [20px 20px\] at (0.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (-0.3) should be [35% 35%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 50%\] to [100% 100%\] at (1) should be [100% 100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [top right\] at (-0.3) should be [35% 65%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (-0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [0px 0px\] at (-0.3) should be [65% 130%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [unset\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (0.5) should be [75% 75%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0) should be [center\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [top right\] at (1) should be [100% 0%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [top right\] at (-0.3) should be [35% 65%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 50%\] to [100% 100%\] at (1) should be [100% 100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [initial\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from neutral to [20px 20px\] at (0.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [unset\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [initial\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.5) should be [75% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [initial\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [initial\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (1.5) should be [calc(-25% + 75px) calc(-50% + 150px)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (1.5) should be [-25% -50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [top right\] at (-0.3) should be [35% 65%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [50px 100px\] at (-0.3) should be [calc(65% + -15px) calc(130% + -30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [unset\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (-0.3) should be [130px 260px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (0.5) should be [calc(25% + 25px) calc(50% + 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.9) should be [95% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.3) should be [65% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (0) should be [center\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.3) should be [65% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [0px 0px\] at (1.5) should be [-25% -50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [unset\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 50%\] to [100% 100%\] at (1.5) should be [125% 125%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [100px 200px\] to [0px 0px\] at (-0.3) should be [130px 260px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [50px 100px\] at (0.5) should be [calc(25% + 25px) calc(50% + 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.5) should be [75% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (0) should be [100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [top right\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [initial\] to [20px 20px\] at (0.5) should be [calc(10px + 25%) calc(10px + 25%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (1) should be [calc(0% + 50px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [100px 200px\] to [0px 0px\] at (0.5) should be [50px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [top right\] at (1) should be [100% 0%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (-0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (1.5) should be [125% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 50%\] to [100% 100%\] at (1.5) should be [125% 125%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [100px 200px\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (1.5) should be [125% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.9) should be [95% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [unset\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (0.9) should be [95% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 50%\] to [100% 100%\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [top right\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [initial\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [initial\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 50%\] to [100% 100%\] at (1) should be [100% 100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [initial\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (-0.3) should be [65% 130%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [50px 100px\] at (-0.3) should be [calc(65% + -15px) calc(130% + -30px)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (1) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [top right\] at (0.5) should be [75% 25%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (0) should be [center\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [50px 100px\] at (1.5) should be [calc(-25% + 75px) calc(-50% + 150px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [0px 0px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [initial\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 100%\] to [50px 100px\] at (1) should be [calc(0% + 50px) calc(0% + 100px)\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (-0.3) should be [65% 130%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (0) should be [100px 200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [initial\] to [20px 20px\] at (1) should be [calc(20px + 0%) calc(20px + 0%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [unset\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [0px 0px\] at (1.5) should be [-25% -50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [unset\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [inherit\] to [20px 20px\] at (0.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [top right\] at (1.5) should be [125% -25%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [top right\] at (-0.3) should be [35% 65%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [100px 200px\] to [0px 0px\] at (-0.3) should be [130px 260px\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [right 0% bottom 50%\] at (2) should be [150% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [center\] to [right 0% bottom 50%\] at (-0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [unset\] to [20px 20px\] at (0) should be [50% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 50%\] to [100% 100%\] at (-0.3) should be [35% 35%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (1.5) should be [-25% -50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (1) should be [100% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from neutral to [20px 20px\] at (0.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [unset\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [unset\] to [20px 20px\] at (1.5) should be [calc(30px + -25%) calc(30px + -25%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [50% 50%\] to [100% 100%\] at (0.5) should be [75% 75%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [100px 200px\] to [0px 0px\] at (0) should be [100px 200px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [50% 100%\] to [0px 0px\] at (0.5) should be [25% 50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [50% 100%\] to [0px 0px\] at (0) should be [50% 100%\]]
+    expected: FAIL
+
+  [Web Animations: property <object-position> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <object-position> from [unset\] to [20px 20px\] at (-0.3) should be [calc(-6px + 65%) calc(-6px + 65%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <object-position> from [center\] to [right 0% bottom 50%\] at (1.5) should be [125% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <object-position> from [center\] to [top right\] at (0.5) should be [75% 25%\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/animations/letter-spacing-interpolation.html.ini b/tests/wpt/metadata/css/css-text/animations/letter-spacing-interpolation.html.ini
index d36bca23c57..e82b2321053 100644
--- a/tests/wpt/metadata/css/css-text/animations/letter-spacing-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-text/animations/letter-spacing-interpolation.html.ini
@@ -1,5 +1,358 @@
 [letter-spacing-interpolation.html]
-  expected: ERROR
   [letter-spacing-interpolation]
     expected: FAIL
 
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (0) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [unset\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from neutral to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [unset\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (0.6) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from neutral to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [unset\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [unset\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from neutral to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (0.3) should be [-4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [inherit\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [inherit\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [unset\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from neutral to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [inherit\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (-0.3) should be [-16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [-10px\] to [10px\] at (0.3) should be [-4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [-10px\] to [10px\] at (0.3) should be [-4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [-10px\] to [10px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from neutral to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (0) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (0.6) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [unset\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (0) should be [-10px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from neutral to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from neutral to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from neutral to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (0) should be [-10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (-0.3) should be [-16px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (0) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [-10px\] to [10px\] at (0.6) should be [2px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [unset\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [inherit\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [unset\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [-10px\] to [10px\] at (-0.3) should be [-16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from neutral to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [-10px\] to [10px\] at (0.3) should be [-4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [unset\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from neutral to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [-10px\] to [10px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [initial\] to [20px\] at (0) should be [normal\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [inherit\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from neutral to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [inherit\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (0) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <letter-spacing> from [-10px\] to [10px\] at (-0.3) should be [-16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [-10px\] to [10px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [inherit\] to [20px\] at (0.3) should be [7.4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [inherit\] to [20px\] at (-0.3) should be [-3.4px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [inherit\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [normal\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [Web Animations: property <letter-spacing> from [unset\] to [20px\] at (1.5) should be [29px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from [-10px\] to [10px\] at (0.6) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <letter-spacing> from neutral to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [inherit\] to [20px\] at (0.6) should be [12.8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <letter-spacing> from [normal\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/animations/text-indent-interpolation.html.ini b/tests/wpt/metadata/css/css-text/animations/text-indent-interpolation.html.ini
index a4ea398608e..9839b1edb93 100644
--- a/tests/wpt/metadata/css/css-text/animations/text-indent-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-text/animations/text-indent-interpolation.html.ini
@@ -1,5 +1,613 @@
 [text-indent-interpolation.html]
-  expected: ERROR
   [text-indent-interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0) should be [0 hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [inherit\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.3) should be [15px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (1.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [unset\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.3) should be [15px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0) should be [0 hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (0) should be [0 hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.6) should be [30px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.3) should be [15px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [inherit\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (1) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.6) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.6) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (0) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (0) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px\] at (1.5) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [unset\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (0) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.3) should be [15px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (1.5) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (1.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (1.5) should be [75px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.3) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (0) should be [70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1.5) should be [75px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (1.5) should be [75px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from neutral to [40px\] at (-0.3) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px\] at (-0.3) should be [-15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [inherit\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [inherit\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [unset\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.6) should be [30px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (-0.3) should be [-15px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (1.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (-0.3) should be [-15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (-0.3) should be [-15px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0) should be [0px each-line\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.3) should be [15px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.6) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (1.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (-0.3) should be [-15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (-0.3) should be [-15px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [inherit\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.6) should be [30px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (0.3) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (-0.3) should be [-15px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (0) should be [0 hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (-0.3) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (0) should be [70px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [unset\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (1) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [inherit\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (1) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.6) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.6) should be [30px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (-0.3) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (0.6) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0) should be [0 hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px\] at (0.3) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0) should be [0 hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.6) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1.5) should be [75px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [unset\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (1) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (1.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [unset\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.3) should be [15px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.6) should be [30px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (-0.3) should be [-15px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px\] at (0.3) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1) should be [50px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1) should be [50px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.6) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [inherit\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (-0.3) should be [-15px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (0) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1) should be [50px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (-0.3) should be [0px each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px\] at (-0.3) should be [-15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1) should be [50px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (0) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (0) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.3) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (-0.3) should be [-15px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (-0.3) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.3) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (0.6) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [inherit\] to [20px\] at (1.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [inherit\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (0.3) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [unset\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [inherit\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (0) should be [0 hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0) should be [0px each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.6) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1.5) should be [75px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px\] at (0.6) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.6) should be [30px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (1) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.3) should be [15px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.3) should be [0px each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.3) should be [0px each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (1.5) should be [75px hanging each-line\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.6) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (1.5) should be [75px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (0) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (1.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [unset\] to [20px\] at (-0.3) should be [85px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [unset\] to [20px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px\] to [50px\] at (1) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px each-line hanging\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0px\] to [50px\] at (1.5) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px\] at (1.5) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px\] at (0.6) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging\] to [50px hanging\] at (1.5) should be [75px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (1) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px each-line\] to [50px hanging\] at (1.5) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [unset\] to [20px\] at (0.3) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (-0.3) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px\] to [50px each-line hanging\] at (1.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.3) should be [15px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (-0.3) should be [-15px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0.6) should be [30px hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px hanging\] to [50px hanging\] at (0.6) should be [30px hanging\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0px each-line\] to [50px hanging\] at (0.3) should be [50px hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px hanging each-line\] to [50px each-line hanging\] at (0) should be [0 hanging each-line\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0px\] to [50px each-line hanging\] at (0.5) should be [50px each-line hanging\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0px each-line\] to [50px hanging\] at (-0.3) should be [0px each-line\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/animations/word-spacing-interpolation.html.ini b/tests/wpt/metadata/css/css-text/animations/word-spacing-interpolation.html.ini
index 0725df56802..105a5295d64 100644
--- a/tests/wpt/metadata/css/css-text/animations/word-spacing-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-text/animations/word-spacing-interpolation.html.ini
@@ -1,5 +1,358 @@
 [word-spacing-interpolation.html]
-  expected: ERROR
   [word-spacing-interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <word-spacing> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [-10px\] to [40px\] at (-0.3) should be [-25px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [-10px\] to [40px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (0.3) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [-10px\] to [40px\] at (1.5) should be [65px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (0) should be [-10px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [-10px\] to [40px\] at (1.5) should be [65px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [normal\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [-10px\] to [40px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (0.6) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [-10px\] to [40px\] at (0.3) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (0) should be [-10px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [-10px\] to [40px\] at (-0.3) should be [-25px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (1.5) should be [65px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (0.3) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [normal\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [unset\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [-10px\] to [40px\] at (-0.3) should be [-25px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [normal\] to [10px\] at (-0.3) should be [-3px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [-10px\] to [40px\] at (0.3) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [unset\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <word-spacing> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (1.5) should be [65px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [normal\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <word-spacing> from [unset\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [normal\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <word-spacing> from [-10px\] to [40px\] at (-0.3) should be [-25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <word-spacing> from [unset\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-text/line-break/line-break-normal-018.xht.ini b/tests/wpt/metadata/css/css-text/line-break/line-break-normal-018.xht.ini
new file mode 100644
index 00000000000..693999d7f9d
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/line-break/line-break-normal-018.xht.ini
@@ -0,0 +1,2 @@
+[line-break-normal-018.xht]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/line-break/line-break-strict-018.xht.ini b/tests/wpt/metadata/css/css-text/line-break/line-break-strict-018.xht.ini
new file mode 100644
index 00000000000..bd79bd226f9
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/line-break/line-break-strict-018.xht.ini
@@ -0,0 +1,2 @@
+[line-break-strict-018.xht]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-text/white-space/trailing-ideographic-space-004.html.ini b/tests/wpt/metadata/css/css-text/white-space/trailing-ideographic-space-004.html.ini
new file mode 100644
index 00000000000..240d1283c3a
--- /dev/null
+++ b/tests/wpt/metadata/css/css-text/white-space/trailing-ideographic-space-004.html.ini
@@ -0,0 +1,2 @@
+[trailing-ideographic-space-004.html]
+  expected: FAIL
diff --git a/tests/wpt/metadata/css/css-transforms/animation/list-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/list-interpolation.html.ini
index 9b671ea64ee..5105b95eec5 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/list-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/list-interpolation.html.ini
@@ -1,5 +1,4 @@
 [list-interpolation.html]
-  expected: ERROR
   [Animation between "scale(2) rotate(0deg) translate(100px)" and "rotate(720deg) scale(2) translate(200px)" at progress 0.25]
     expected: FAIL
 
@@ -90,3 +89,222 @@
   [Transform list interpolation]
     expected: FAIL
 
+  [CSS Animations: property <transform> from [none\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(50px) rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [none\] at (0.25) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(720deg) translateX(0px) scaleX(2)\] to [rotate(0deg) scaleX(1)\] at (0.25) should be [rotate(540deg) matrix(1.75, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(0deg) scaleX(1)\] to [rotate(720deg) translateX(0px) scaleX(2)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(-3) scaleY(2)\] to [scaleY(-3) translateX(0px) scaleX(2)\] at (0.25) should be [scale(-2, 0) matrix(1.25, 0, 0, 1.75, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(-3) scaleY(2)\] to [scaleY(-3) translateX(0px) scaleX(2)\] at (0.25) should be [scale(-2, 0) matrix(1.25, 0, 0, 1.75, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(100px) rotate(720deg)\] to [translate(200px)\] at (0.25) should be [translate(125px) rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(0deg) scaleX(1)\] to [rotate(720deg) translateX(0px) scaleX(2)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(-3) translateX(0px)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 0, 0, 360deg) translateX(100px)\] to [rotate3d(0, 1, 0, -720deg) translateY(200px)\] at (0.25) should be [rotate3d(0, 0, 1, 0deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(2) rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 250, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(-3) translateX(0px)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(-3) translateX(0px) scaleX(2)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1.75, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(50px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(100px) scaleX(3) translate(500px) scale(2)\] to [translateY(200px) scale(5) translateX(100px) scaleY(3)\] at (0.25) should be [translate(75px, 50px) scale(3.5, 2) translate(400px, 0px) scale(1.75, 2.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(2) rotate(0deg)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 100, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotate3d(50, 0, 0, 180deg) translateY(200px)\] at (0.25) should be [rotateX(112.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(200px) rotate(720deg)\] to [none\] at (0.25) should be [translate(150px) rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(200px) rotate(720deg)\] to [none\] at (0.25) should be [translate(150px) rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1.25, 175, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(2) rotate(360deg) translate(100px) matrix(1, 0, 0, 1, 100, 0) skew(0deg)\] to [scale(3) rotate(1080deg) translate(200px) matrix(1, 0, 0, 1, 0, 200) skew(720deg)\] at (0.25) should be [scale(2.25) rotate(540deg) translate(125px) matrix(1, 0, 0, 1, 75, 50) skew(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(100px) rotate(720deg)\] to [translate(200px)\] at (0.25) should be [translate(125px) rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1.25, 175, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1.25, 175, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 0, 0, 360deg) translateX(100px)\] to [rotate3d(0, 1, 0, -720deg) translateY(200px)\] at (0.25) should be [rotate3d(0, 0, 1, 0deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(-3) scaleY(2)\] to [scaleY(-3) translateX(0px) scaleX(2)\] at (0.25) should be [scale(-2, 0) matrix(1.25, 0, 0, 1.75, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 1, -60deg) translateX(100px)\] to [rotate3d(2, 2, 2, 60deg) translateY(200px)\] at (0.25) should be [rotate3d(1, 1, 1, -30deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(0deg) scaleX(1)\] to [rotate(720deg) translateX(0px) scaleX(2)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotateY(0deg) translateY(200px)\] at (0.25) should be [rotateX(67.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(-3) translateX(0px)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(100px) scaleX(3) translate(500px) scale(2)\] to [translateY(200px) scale(5) translateX(100px) scaleY(3)\] at (0.25) should be [translate(75px, 50px) scale(3.5, 2) translate(400px, 0px) scale(1.75, 2.25)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotateY(0deg) translateY(200px)\] at (0.25) should be [rotateX(67.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(100px)\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(125px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotate3d(50, 0, 0, 180deg) translateY(200px)\] at (0.25) should be [rotateX(112.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 0, 0, 360deg) translateX(100px)\] to [rotate3d(0, 1, 0, -720deg) translateY(200px)\] at (0.25) should be [rotate3d(0, 0, 1, 0deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(50px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotateY(0deg) translateY(200px)\] at (0.25) should be [rotateX(67.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotate3d(50, 0, 0, 180deg) translateY(200px)\] at (0.25) should be [rotateX(112.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 1, -60deg) translateX(100px)\] to [rotate3d(2, 2, 2, 60deg) translateY(200px)\] at (0.25) should be [rotate3d(1, 1, 1, -30deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(100px) scaleX(3) translate(500px) scale(2)\] to [translateY(200px) scale(5) translateX(100px) scaleY(3)\] at (0.25) should be [translate(75px, 50px) scale(3.5, 2) translate(400px, 0px) scale(1.75, 2.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(720deg) translateX(0px) scaleX(2)\] to [rotate(0deg) scaleX(1)\] at (0.25) should be [rotate(540deg) matrix(1.75, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 1, -60deg) translateX(100px)\] to [rotate3d(2, 2, 2, 60deg) translateY(200px)\] at (0.25) should be [rotate3d(1, 1, 1, -30deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1.25, 175, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(720deg) translateX(0px) scaleX(2)\] to [rotate(0deg) scaleX(1)\] at (0.25) should be [rotate(540deg) matrix(1.75, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(2) rotate(360deg) translate(100px) matrix(1, 0, 0, 1, 100, 0) skew(0deg)\] to [scale(3) rotate(1080deg) translate(200px) matrix(1, 0, 0, 1, 0, 200) skew(720deg)\] at (0.25) should be [scale(2.25) rotate(540deg) translate(125px) matrix(1, 0, 0, 1, 75, 50) skew(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotateY(0deg) translateY(200px)\] at (0.25) should be [rotateX(67.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(100px) scaleX(3) translate(500px) scale(2)\] to [translateY(200px) scale(5) translateX(100px) scaleY(3)\] at (0.25) should be [translate(75px, 50px) scale(3.5, 2) translate(400px, 0px) scale(1.75, 2.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(2) rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 250, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(2) rotate(360deg) translate(100px) matrix(1, 0, 0, 1, 100, 0) skew(0deg)\] to [scale(3) rotate(1080deg) translate(200px) matrix(1, 0, 0, 1, 0, 200) skew(720deg)\] at (0.25) should be [scale(2.25) rotate(540deg) translate(125px) matrix(1, 0, 0, 1, 75, 50) skew(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(2) rotate(0deg)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 100, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(-3) translateX(0px) scaleX(2)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1.75, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(720deg) translateX(0px) scaleX(2)\] to [rotate(0deg) scaleX(1)\] at (0.25) should be [rotate(540deg) matrix(1.75, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(100px)\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(125px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(2) rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 250, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(2) rotate(0deg)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 100, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 0, 0, 360deg) translateX(100px)\] to [rotate3d(0, 1, 0, -720deg) translateY(200px)\] at (0.25) should be [rotate3d(0, 0, 1, 0deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(0deg) scaleX(1)\] to [rotate(720deg) translateX(0px) scaleX(2)\] at (0.25) should be [rotate(180deg) matrix(1.25, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(2) rotate(0deg)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 100, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(-3) translateX(0px) scaleX(2)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1.75, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(100px) rotate(720deg)\] to [translate(200px)\] at (0.25) should be [translate(125px) rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(90deg) translateX(100px)\] to [rotate3d(50, 0, 0, 180deg) translateY(200px)\] at (0.25) should be [rotateX(112.5deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(-3) translateX(0px)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(2) rotate(360deg) translate(100px) matrix(1, 0, 0, 1, 100, 0) skew(0deg)\] to [scale(3) rotate(1080deg) translate(200px) matrix(1, 0, 0, 1, 0, 200) skew(720deg)\] at (0.25) should be [scale(2.25) rotate(540deg) translate(125px) matrix(1, 0, 0, 1, 75, 50) skew(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(200px) rotate(720deg)\] to [none\] at (0.25) should be [translate(150px) rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(100px)\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(125px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(100px)\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(125px) rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(-3) translateX(0px) scaleX(2)\] to [scaleX(-3) scaleY(2)\] at (0.25) should be [scale(0, -2) matrix(1.75, 0, 0, 1.25, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(-3) scaleY(2)\] to [scaleY(-3) translateX(0px) scaleX(2)\] at (0.25) should be [scale(-2, 0) matrix(1.25, 0, 0, 1.75, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 1, -60deg) translateX(100px)\] to [rotate3d(2, 2, 2, 60deg) translateY(200px)\] at (0.25) should be [rotate3d(1, 1, 1, -30deg) translate(75px, 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(200px) rotate(720deg)\] to [none\] at (0.25) should be [translate(150px) rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(100px) rotate(720deg)\] to [translate(200px)\] at (0.25) should be [translate(125px) rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(2) rotate(0deg) translate(100px)\] to [rotate(720deg) scale(2) translate(200px)\] at (0.25) should be [matrix(2, 0, 0, 2, 250, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [translate(200px) rotate(720deg)\] at (0.25) should be [translate(50px) rotate(180deg)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/matrix-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/matrix-interpolation.html.ini
index 062dcee442c..c8817f118a2 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/matrix-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/matrix-interpolation.html.ini
@@ -1,8 +1,19 @@
 [matrix-interpolation.html]
-  expected: ERROR
   [Animation between "rotateY(360deg)" and "rotateX(720deg)" at progress 0.5]
     expected: FAIL
 
   [Matrix interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <transform> from [rotateY(360deg)\] to [rotateX(720deg)\] at (0.5) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(360deg)\] to [rotateX(720deg)\] at (0.5) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(360deg)\] to [rotateX(720deg)\] at (0.5) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(360deg)\] to [rotateX(720deg)\] at (0.5) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
index 1193e3dfa5c..af79ecd5f12 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/perspective-interpolation.html.ini
@@ -1,5 +1,5 @@
 [perspective-interpolation.html]
-  expected: ERROR
+  expected: TIMEOUT
   [ perspective interpolation]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/css/css-transforms/animation/perspective-origin-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/perspective-origin-interpolation.html.ini
index 475a3a37e29..fd5f85a6913 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/perspective-origin-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/perspective-origin-interpolation.html.ini
@@ -1,5 +1,325 @@
 [perspective-origin-interpolation.html]
-  expected: ERROR
   [perspective-origin interpolation]
     expected: FAIL
 
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1) should be [100% 150%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.6) should be [60% 110%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1) should be [100% 150%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.6) should be [60% 110%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (-0.3) should be [-30% 20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.3) should be [30% 80%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1.5) should be [150% 200%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1.5) should be [150% 200%\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (-0.3) should be [-30% 20%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1.5) should be [150% 200%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.3) should be [30% 80%\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0) should be [0% 50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.3) should be [30% 80%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (-0.3) should be [-30% 20%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.6) should be [60% 110%\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (-0.3) should be [-30% 20%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.6) should be [60% 110%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (1.5) should be [150% 200%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <perspective-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0.3) should be [30% 80%\]]
+    expected: FAIL
+
+  [CSS Animations: property <perspective-origin> from [0% 50%\] to [100% 150%\] at (0) should be [0% 50%\]]
+    expected: FAIL
+
+  [Web Animations: property <perspective-origin> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <perspective-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/rotate-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/rotate-interpolation.html.ini
index c09d1696d8f..e80c4cdd294 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/rotate-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/rotate-interpolation.html.ini
@@ -1,5 +1,4 @@
 [rotate-interpolation.html]
-  expected: ERROR
   [Animation between "100deg" and "180deg" at progress -1]
     expected: FAIL
 
@@ -75,3 +74,888 @@
   [rotate interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (2) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (2) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (-1) should be [0.67 -0.06 -0.74 124.97deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.25) should be [0 1 0 50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (2) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (2) should be [260deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (-1) should be [0 1 0 -10deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [7 -8 9 400grad\] at (1) should be [0.5 -0.57 0.65 400grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.25) should be [0 1 0 50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.125) should be [0.5 -0.57 0.65 50grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (1) should be [1 0 0 0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (-1) should be [-90deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (-1) should be [20deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.875) should be [-0.70246 0.70246 0.114452 53.1994deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.75) should be [0.17 0.78 0.61 118.68deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (-1) should be [0.22 -0.55 0.8 300deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.25) should be [0.22 -0.55 0.8 50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.25) should be [0 1 0 50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (2) should be [0 1 0 -300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0) should be [1 0 0 0deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [7 -8 9 400grad\] at (-1) should be [0.5 -0.57 0.65 -400grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (-1) should be [0.447214 -0.447214 0.774597 104.478deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0) should be [0.5 -0.57 0.65 0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0) should be [0 1 0 0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (0) should be [90deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (1) should be [0 1 0 -100deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.75) should be [0.22 -0.55 0.8 -50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (-1) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.75) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (0.25) should be [135deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.875) should be [-0.70246 0.70246 0.114452 53.1994deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (-1) should be [0 1 0 300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from neutral to [30deg\] at (0.75) should be [25deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (0.875) should be [170deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (2) should be [-0.52 0.29 0.81 208.96deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (0.75) should be [225deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (-1) should be [0.67 -0.06 -0.74 124.97deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [7 -8 9 400grad\] at (-1) should be [0.5 -0.57 0.65 -400grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (0.75) should be [-50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.75) should be [0.22 -0.55 0.8 -50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (1) should be [180deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.125) should be [0.5 -0.57 0.65 50grad\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [unset\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.125) should be [-0.136456 0.136456 0.981203 40.6037deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [-100deg\] at (2) should be [-300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.125) should be [0.5 -0.57 0.65 50grad\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.875) should be [-0.70246 0.70246 0.114452 53.1994deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.75) should be [0.22 -0.55 0.8 -50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [-100deg\] at (0.25) should be [50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (-1) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [-100deg\] at (0.75) should be [-50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (-1) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (2) should be [-0.52 0.29 0.81 208.96deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from neutral to [30deg\] at (-1) should be [-10deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [180deg\] at (0.875) should be [170deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0) should be [0.22 -0.55 0.8 100deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (0.25) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.75) should be [0 1 0 7.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (-1) should be [-10deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (2) should be [0 1 0 20deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [180deg\] at (-1) should be [20deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.25) should be [0.54 0.8 0.26 94.83deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (2) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from neutral to [30deg\] at (2) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (-1) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.75) should be [0 1 0 7.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (0) should be [100deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (0) should be [100deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.875) should be [-0.70246 0.70246 0.114452 53.1994deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (1) should be [-0.71 0.71 0 60deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (2) should be [0.22 -0.55 0.8 -300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (-1) should be [0.5 -0.57 0.65 -400grad\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.25) should be [0.54 0.8 0.26 94.83deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [unset\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [180deg\] at (2) should be [260deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (-1) should be [0.447214 -0.447214 0.774597 104.478deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.25) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [unset\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (2) should be [-0.637897 0.637897 -0.431479 124.975deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0) should be [0.71 0.71 0 90deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.25) should be [0.22 -0.55 0.8 50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (-1) should be [0 1 0 300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (1) should be [-0.71 0.71 0 60deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.25) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (0) should be [0deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.75) should be [0 1 0 -50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [inherit\] to [270deg\] at (2) should be [450deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (0.25) should be [135deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (-1) should be [0.447214 -0.447214 0.774597 104.478deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (1) should be [-100deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (-1) should be [0.5 -0.57 0.65 -400grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (2) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0) should be [0.5 -0.57 0.65 0deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [unset\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (-1) should be [0.22 -0.55 0.8 300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (-1) should be [0.67 -0.06 -0.74 124.97deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [inherit\] to [270deg\] at (-1) should be [-90deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0) should be [0 1 0 100deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (2) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [180deg\] at (-1) should be [20deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (0.75) should be [225deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0) should be [1 0 0 0deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from neutral to [30deg\] at (2) should be [50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.25) should be [0.54 0.8 0.26 94.83deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.75) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (-1) should be [0.447214 -0.447214 0.774597 104.478deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (0.25) should be [15deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (-1) should be [0 1 0 -10deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (2) should be [-300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [-100deg\] at (2) should be [-300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.75) should be [0 1 0 -50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (1) should be [1 0 0 450deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.875) should be [0.5 -0.57 0.65 350grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.25) should be [0.22 -0.55 0.8 50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0) should be [z 45deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.875) should be [0.5 -0.57 0.65 350grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (1) should be [0 1 0 10deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.75) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [inherit\] to [270deg\] at (0.25) should be [135deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.125) should be [-0.136456 0.136456 0.981203 40.6037deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (-1) should be [300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [unset\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from neutral to [30deg\] at (0.25) should be [15deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0) should be [0.22 -0.55 0.8 100deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.125) should be [-0.136456 0.136456 0.981203 40.6037deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from neutral to [30deg\] at (0.75) should be [25deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.875) should be [0.5 -0.57 0.65 350grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (2) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.75) should be [0.17 0.78 0.61 118.68deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from neutral to [30deg\] at (-1) should be [-10deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (0) should be [0deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [-100deg\] at (0.25) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.75) should be [0 1 0 -50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (-1) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0) should be [z 45deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0) should be [0 1 0 0deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.75) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.25) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [180deg\] at (0.125) should be [110deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (1) should be [0.5 -0.57 0.65 400grad\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.25) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (0.125) should be [-0.136456 0.136456 0.981203 40.6037deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (1) should be [-100deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (2) should be [0.22 -0.55 0.8 -300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.75) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [inherit\] to [270deg\] at (0.75) should be [225deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from neutral to [30deg\] at (0.25) should be [15deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.25) should be [0 1 0 2.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.25) should be [0 1 0 2.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (0.125) should be [110deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [inherit\] to [270deg\] at (0.25) should be [135deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (2) should be [-0.52 0.29 0.81 208.96deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.75) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.25) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.125) should be [0.5 -0.57 0.65 50grad\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (2) should be [0 1 0 20deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (1) should be [0 1 0 -100deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.25) should be [0.22 -0.55 0.8 50deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [-100deg\] at (0.75) should be [-50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [unset\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (2) should be [0 1 0 -300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [180deg\] at (2) should be [260deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (0) should be [0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.75) should be [0 1 0 7.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (2) should be [450deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (0) should be [0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0) should be [1 0 0 450deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [180deg\] at (0.125) should be [110deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (-1) should be [0 1 0 -10deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [7 -8 9 400grad\] at (2) should be [0.5 -0.57 0.65 800grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from neutral to [30deg\] at (0.75) should be [25deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [inherit\] to [270deg\] at (0.75) should be [225deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.25) should be [0 1 0 50deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.25) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [100deg\] to [-100deg\] at (-1) should be [300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [inherit\] to [270deg\] at (-1) should be [-90deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (-1) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (-1) should be [300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (1) should be [270deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (1) should be [270deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (2) should be [0 1 0 20deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0) should be [1 0 0 450deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (-1) should be [0.22 -0.55 0.8 300deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.25) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (-1) should be [0.67 -0.06 -0.74 124.97deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (2) should be [0.22 -0.55 0.8 -300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (-1) should be [0 1 0 300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (2) should be [0.5 -0.57 0.65 800grad\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (2) should be [0.22 -0.55 0.8 -300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (0.875) should be [0.5 -0.57 0.65 350grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (-1) should be [0 1 0 300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (1) should be [0 0.71 0.71 135deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [unset\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (1) should be [0 0.71 0.71 135deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (-1) should be [20deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from neutral to [30deg\] at (-1) should be [-10deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [unset\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from neutral to [30deg\] at (0.25) should be [15deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.75) should be [1 0 0 337.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (1) should be [0.5 -0.57 0.65 400grad\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (-1) should be [0 1 0 -10deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (0.75) should be [25deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [180deg\] at (0.875) should be [170deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (1) should be [1 0 0 450deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (1) should be [1 0 0 0deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (2) should be [-0.637897 0.637897 -0.431479 124.975deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [180deg\] at (0.125) should be [110deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (0) should be [10deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (0.25) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (0.75) should be [0.22 -0.55 0.8 -50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from neutral to [30deg\] at (1) should be [30deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (2) should be [0 1 0 20deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (2) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [unset\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [-100deg\] at (0) should be [100deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [7 -8 9 400grad\] at (1) should be [0.5 -0.57 0.65 400grad\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (1) should be [0 1 0 10deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (-1) should be [1 0 0 -450deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (2) should be [0 1 0 -300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (2) should be [-300deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from neutral to [30deg\] at (2) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (2) should be [-0.637897 0.637897 -0.431479 124.975deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0.75) should be [0 1 0 -50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [none\] to [7 -8 9 400grad\] at (2) should be [0.5 -0.57 0.65 800grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0) should be [0.71 0.71 0 90deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [30deg\] at (-1) should be [-30deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (1) should be [1 0 0 0deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.25) should be [0 1 0 2.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [100deg\] to [-100deg\] at (-1) should be [300deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (0.75) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (2) should be [0 1 0 -300deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (2) should be [-0.52 0.29 0.81 208.96deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (0.875) should be [170deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (-1) should be [0.22 -0.55 0.8 300deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [30deg\] at (0.25) should be [7.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [0 1 0 100deg\] to [0 1 0 -100deg\] at (0) should be [0 1 0 100deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (1) should be [180deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (1) should be [0.22 -0.55 0.8 -100deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.75) should be [0.17 0.78 0.61 118.68deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (0.75) should be [-50deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.25) should be [0.54 0.8 0.26 94.83deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (0) should be [90deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [100deg\] to [-100deg\] at (0) should be [100deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [100deg\] to [180deg\] at (2) should be [260deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [unset\] to [30deg\] at (2) should be [60deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [none\] to [30deg\] at (0.75) should be [22.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [inherit\] to [270deg\] at (-1) should be [-90deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [inherit\] to [270deg\] at (2) should be [450deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from neutral to [30deg\] at (2) should be [50deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.75) should be [0 1 0 7.5deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [1 0 0 0deg\] to [0 1 0 10deg\] at (0.25) should be [0 1 0 2.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [45deg\] to [-1 1 0 60deg\] at (2) should be [-0.637897 0.637897 -0.431479 124.975deg\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <rotate> from [inherit\] to [270deg\] at (2) should be [450deg\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 1 0 90deg\] to [0 1 1 135deg\] at (0.75) should be [0.17 0.78 0.61 118.68deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [0 1 0 0deg\] to [1 0 0 450deg\] at (0.25) should be [1 0 0 112.5deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [none\] to [7 -8 9 400grad\] at (2) should be [0.5 -0.57 0.65 800grad\]]
+    expected: FAIL
+
+  [Web Animations: property <rotate> from [1 -2.5 3.64 100deg\] to [1 -2.5 3.64 -100deg\] at (1) should be [0.22 -0.55 0.8 -100deg\]]
+    expected: FAIL
+
+  [CSS Animations: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (-1) should be [1 0 0 900deg\]]
+    expected: FAIL
+
+  [CSS Transitions: property <rotate> from [1 0 0 450deg\] to [0 1 0 0deg\] at (1) should be [1 0 0 0deg\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/scale-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/scale-interpolation.html.ini
index c4daaea26d0..bae37e59cb6 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/scale-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/scale-interpolation.html.ini
@@ -1,5 +1,4 @@
 [scale-interpolation.html]
-  expected: ERROR
   [Animation between "2 30 400" and "10 110 1200" at progress -1]
     expected: FAIL
 
@@ -93,3 +92,954 @@
   [scale interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <scale> from [26 17 9\] to [2 1\] at (0.875) should be [5 3 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 30 400\] to [10 110 1200\] at (2) should be [18 190 2000\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [inherit\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [none\] to [4 3 2\] at (2) should be [7 5 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (-1) should be [50 33 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0.25) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (0) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (-1) should be [-21 9\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (0.25) should be [3.25 -0.5 0.75\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [initial\] at (0.25) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from neutral to [1.5 1\] at (0.75) should be [1.4 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [initial\] at (0.75) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0.75) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (1) should be [10 110 1200\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [1\] to [10 -5 0\] at (0.75) should be [7.75 -3.5 0.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (0.75) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (2) should be [-22 -15 -7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [1\] to [10 -5 0\] at (2) should be [19 -11 -1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (-1) should be [0.5 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (1) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [1\] to [10 -5 0\] at (-1) should be [-8 7 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from neutral to [1.5 1\] at (2) should be [1.9 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (0.75) should be [-1.75 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5\] to [10 -5\] at (2) should be [30 -15\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [none\] to [4 3 2\] at (0.125) should be [1.375 1.25 1.125\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [inherit\] at (0.25) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (1) should be [10 -5 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5\] to [10 -5\] at (2) should be [30 -15\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (2) should be [7 5 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (-1) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 30 400\] to [10 110 1200\] at (-1) should be [-6 -50 -400\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (-1) should be [-21 9\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0) should be [2 30 400\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [inherit\] at (2) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (2) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (0.25) should be [-5 2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (1) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [inherit\] at (0.75) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (-1) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (2) should be [12 -3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (-1) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (2) should be [12 -3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 30 400\] to [10 110 1200\] at (0.125) should be [3 40 500\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5\] to [10 -5\] at (0.75) should be [5 -2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0) should be [2 30 400\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (0.25) should be [1.75 0.6251\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (1) should be [10 -5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [unset\] to [1.5 1\] at (2) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [none\] to [4 3 2\] at (-1) should be [-2 -1 0\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (0.875) should be [5 3 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [inherit\] at (-1) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (2) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5\] to [10 -5\] at (0.75) should be [5 -2.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [initial\] at (0.75) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (1) should be [4 3 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (2) should be [18 190 2000\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [26 17 9\] to [2 1\] at (0.125) should be [23 15 8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [unset\] to [1.5 1\] at (0.75) should be [1.375 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (0.25) should be [1.125 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (0.25) should be [-7.25 4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [initial\] at (-1) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [26 17 9\] to [2 1\] at (-1) should be [50 33 17\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (2) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [inherit\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [inherit\] at (2) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [1\] to [10 -5 0\] at (2) should be [19 -11 -1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5\] to [10 -5\] at (0.25) should be [-5 2.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [2 0.5 1\] at (2) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (2) should be [3 0\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (1) should be [10 -5 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [inherit\] at (0.75) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (0.75) should be [5 -2.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from neutral to [1.5 1\] at (2) should be [1.9 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [none\] to [4 3 2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (1) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from neutral to [1.5 1\] at (0.75) should be [1.4 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (-1) should be [-6 -50 -400\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [26 17 9\] to [2 1\] at (1) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [2 0.5 1\] at (0.25) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from neutral to [1.5 1\] at (0.25) should be [1.2 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [1\] to [10 -5 0\] at (0.25) should be [3.25 -0.5 0.75\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [none\] to [4 3 2\] at (0.875) should be [3.625 2.75 1.875\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (0.75) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (-1) should be [0 1.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (0.25) should be [1.75 0.6251\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (2) should be [12 -3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (0.125) should be [23 15 8\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (-1) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 30 400\] to [10 110 1200\] at (0.125) should be [3 40 500\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (1) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (2) should be [12 -3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (0.25) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (0.875) should be [3.625 2.75 1.875\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0.125) should be [3 40 500\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (0) should be [26 17 9\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [unset\] to [1.5 1\] at (0.25) should be [1.125 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (0.75) should be [5 -2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (2) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [26 17 9\] to [2 1\] at (0.875) should be [5 3 2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [unset\] to [1.5 1\] at (2) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5\] to [10 -5\] at (0.25) should be [-5 2.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (2) should be [30 -15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (-1) should be [-21 9\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (-1) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (0.75) should be [-1.75 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (2) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (0.75) should be [7.75 -3.5 0.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [none\] to [4 3 2\] at (2) should be [7 5 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (0.75) should be [1.75 0.625\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 30 400\] to [10 110 1200\] at (0.875) should be [9 100 1100\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (-1) should be [-8 7 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (0.75) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (2) should be [-22 -15 -7\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (1) should be [10 110 1200\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [none\] to [4 3 2\] at (0.125) should be [1.375 1.25 1.125\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [inherit\] at (0.75) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (2) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (0.25) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (-1) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [26 17 9\] to [2 1\] at (-1) should be [50 33 17\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [1\] to [10 -5 0\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (0.75) should be [1.375 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (1) should be [4 3 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (0.25) should be [-7.25 4\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (2) should be [2 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (-1) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (0.75) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (0.25) should be [1.125 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (1) should be [1.5 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (1) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (-1) should be [0.5 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0.75) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (-1) should be [-2 -1 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (0.75) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (2) should be [19 -11 -1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (0.875) should be [5 3 2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [inherit\] at (0.25) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (0.25) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (-1) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from neutral to [1.5 1\] at (0.75) should be [1.4 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (2) should be [0 1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (0.25) should be [-7.25 4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [unset\] to [1.5 1\] at (-1) should be [0.5 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from neutral to [1.5 1\] at (2) should be [1.9 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [2 0.5 1\] at (-1) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [initial\] at (-1) should be [3 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [inherit\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (0) should be [0.5 1 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (-1) should be [-30 15\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (2) should be [7 5 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [1\] to [10 -5 0\] at (-1) should be [-8 7 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (2) should be [3 0\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0.75) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (2) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (0.875) should be [3.625 2.75 1.875\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (0.75) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (0) should be [1.1 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (0.25) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0.125) should be [3 40 500\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (0.75) should be [1.4 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5\] to [10 -5\] at (2) should be [30 -15\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (-1) should be [0 1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (-1) should be [0.7 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (0.125) should be [1.375 1.25 1.125\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (2) should be [0 1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [unset\] to [1.5 1\] at (-1) should be [0.5 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (0.25) should be [3.25 -0.5 0.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5 1\] to [1\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (2) should be [1.9 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from neutral to [1.5 1\] at (0.25) should be [1.2 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (-1) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (0.75) should be [1.75 0.625\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (0.125) should be [1.375 1.25 1.125\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [unset\] to [1.5 1\] at (0.25) should be [1.125 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0.875) should be [9 100 1100\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (0.25) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (0.25) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (-1) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [-10 5\] to [10 -5\] at (-1) should be [-30 15\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (1) should be [1.5 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [inherit\] at (0.25) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from neutral to [1.5 1\] at (0.25) should be [1.2 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [unset\] to [1.5 1\] at (0.75) should be [1.375 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (2) should be [0 1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [initial\] at (-1) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [initial\] at (0.25) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [2 0.5 1\] at (2) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0.25) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (0.75) should be [7.75 -3.5 0.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0.25) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [1\] to [10 -5 0\] at (0.25) should be [3.25 -0.5 0.75\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (0.75) should be [0.625 1 1.75\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [1\] to [10 -5 0\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [26 17 9\] to [2 1\] at (2) should be [-22 -15 -7\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [inherit\] to [2 0.5 1\] at (0.75) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (0.25) should be [1.75 0.6251\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (2) should be [0 1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [inherit\] at (0.25) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [none\] to [4 3 2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (2) should be [2 1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [inherit\] to [initial\] at (2) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 30 400\] to [10 110 1200\] at (0.875) should be [9 100 1100\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [inherit\] at (-1) should be [3.5 0 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [26 17 9\] to [2 1\] at (1) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (0.25) should be [0.875 1 1.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [initial\] at (2) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 0.5 1\] to [initial\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [26 17 9\] to [2 1\] at (0.125) should be [23 15 8\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [inherit\] at (2) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (1) should be [10 -5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (0.875) should be [9 100 1100\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [unset\] to [1.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [inherit\] at (-1) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from neutral to [1.5 1\] at (-1) should be [0.7 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5 1\] to [1\] at (0.75) should be [-1.75 2\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (-1) should be [-6 -50 -400\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (0.25) should be [-7.25 4\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (0) should be [-10 5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [inherit\] at (2) should be [0 1 3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5 1\] to [1\] at (0.75) should be [-1.75 2\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (1) should be [2 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (0.25) should be [-5 2.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [-10 5\] to [10 -5\] at (-1) should be [-30 15\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [2 0.5 1\] at (-1) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (-1) should be [-21 9\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (0.125) should be [23 15 8\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [4 3 2\] at (-1) should be [-2 -1 0\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (2) should be [19 -11 -1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [26 17 9\] to [2 1\] at (-1) should be [50 33 17\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from neutral to [1.5 1\] at (1) should be [1.5 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 0.5 1\] to [inherit\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (0.25) should be [1.75 0.6251\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [none\] to [4 3 2\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [26 17 9\] to [2 1\] at (0) should be [26 17 9\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [inherit\] at (0.25) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (-1) should be [0 1.5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [2 0.5 1\] at (0.25) should be [0.875 0.875 1.75\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (0.75) should be [1.75 0.625\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from neutral to [1.5 1\] at (0.25) should be [1.2 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [2 0.5 1\] at (1) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [inherit\] to [2 0.5 1\] at (0.75) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (0.75) should be [1.75 0.625\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [-10 5\] to [10 -5\] at (-1) should be [-30 15\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [26 17 9\] to [2 1\] at (2) should be [-22 -15 -7\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [none\] to [4 3 2\] at (0.875) should be [3.625 2.75 1.875\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [2 30 400\] to [10 110 1200\] at (-1) should be [-6 -50 -400\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from neutral to [1.5 1\] at (-1) should be [0.7 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [inherit\] at (-1) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [initial\] at (0) should be [2 0.5\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from neutral to [1.5 1\] at (-1) should be [0.7 1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [initial\] at (2) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [inherit\] to [2 0.5 1\] at (0.75) should be [1.625 0.625 1.25\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (0.75) should be [1.375 1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [1\] to [10 -5 0\] at (0) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [2 0.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [1\] to [10 -5 0\] at (0.75) should be [7.75 -3.5 0.25\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [2 0.5 1\] at (0) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 30 400\] to [10 110 1200\] at (2) should be [18 190 2000\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [2 0.5 1\] to [initial\] at (0.75) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 0.5 1\] to [inherit\] at (2) should be [-1 1.5 3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [initial\] to [inherit\] at (2) should be [0 1 3\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [1\] to [10 -5 0\] at (-1) should be [-8 7 2\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [initial\] to [2 0.5 1\] at (-1) should be [0 1.5\]]
+    expected: FAIL
+
+  [Web Animations: property <scale> from [-10 5 1\] to [1\] at (1) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [2 0.5 1\] at (0.25) should be [1.25 0.875\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [initial\] to [inherit\] at (-1) should be [1.5 1 0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [none\] to [4 3 2\] at (-1) should be [-2 -1 0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <scale> from [2 30 400\] to [10 110 1200\] at (2) should be [18 190 2000\]]
+    expected: FAIL
+
+  [CSS Animations: property <scale> from [unset\] to [1.5 1\] at (1) should be [1.5 1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <scale> from [initial\] to [inherit\] at (0.75) should be [0.625 1 1.75\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-001.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-001.html.ini
index 4ea34ca69cd..4dc473fa7ac 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-001.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-001.html.ini
@@ -1,5 +1,1084 @@
 [transform-interpolation-001.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.25) should be [skewX(12.5rad) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (2) should be [skewX(30rad) perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0) should be [rotate3d(1, 1, 0, 90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0) should be [scaleZ(1) perspective(400px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0) should be [rotate3d(1, 1, 0, 90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.25) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (-1) should be [rotate3d(7, 8, 9, -60deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.75) should be [perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (2) should be [perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (2) should be [skewX(30rad) perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (2) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (-1) should be [skewX(0rad) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (1) should be [rotate3d(0, 1, 0, 450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.25) should be [scaleZ(1.25) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.25) should be [rotate3d(0.524083, 0.804261, 0.280178, 106.91deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (0.75) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.25) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.75) should be [rotate3d(7, 8, 9, 220deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (2) should be [scaleZ(3) perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (2) should be [scaleZ(3) perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (0) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(90deg)\] at (0.25) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0) should be [skewX(10rad) perspective(400px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(90deg)\] at (0.75) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (-1) should be [rotateX(-700deg) rotateY(-800deg) rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.75) should be [rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.25) should be [scaleZ(1.25) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (-1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (2) should be [skewX(30rad) perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (2) should be [rotate3d(0.71, 0, -0.71, 90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0) should be [rotate3d(0, 1, 0, 0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.75) should be [rotate3d(7, 8, 9, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (2) should be [rotateY(1600deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0) should be [rotate3d(0, 1, 0, 0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (1) should be [rotate3d(7, 8, 9, 450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (1) should be [perspective(500px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (2) should be [rotate3d(7, 8, 9, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.25) should be [rotate3d(7, 8, 9, 140deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0) should be [rotate3d(7, 8, 9, 0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (2) should be [rotate3d(7, 8, 9, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(90deg)\] to [none\] at (-1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.25) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (1) should be [skewX(20rad) perspective(500px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (1) should be [perspective(500px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.75) should be [rotate3d(0.163027, 0.774382, 0.611354, 153.99deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0) should be [rotate3d(0, 1, 0, 0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (-1) should be [rotateX(-700deg) rotateY(-800deg) rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (2) should be [scaleZ(3) perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (-1) should be [rotateX(-700deg) rotateY(-800deg) rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (1) should be [rotate3d(0, 1, 0, 450deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (1) should be [skewX(20rad) perspective(500px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (1) should be [rotate3d(0, 1, 1, 180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.75) should be [rotate3d(0.163027, 0.774382, 0.611354, 153.99deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.25) should be [rotateX(175deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.75) should be [rotateY(600deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (1) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.25) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(90deg)\] at (0.25) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (1) should be [rotateX(700deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (1) should be [rotateZ(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.25) should be [rotate3d(0.524083, 0.804261, 0.280178, 106.91deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (2) should be [rotate(630deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.25) should be [rotate(105deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0) should be [rotate3d(7, 8, 9, 100deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (-1) should be [rotate3d(7, 8, 9, -60deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (1) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (-1) should be [rotate3d(0.41, -0.41, -0.82, 120deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.75) should be [rotateY(600deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(90deg)\] to [none\] at (2) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (-1) should be [perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.25) should be [skewX(12.5rad) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (2) should be [perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0) should be [scaleZ(1) perspective(400px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.25) should be [rotate3d(7, 8, 9, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(90deg)\] at (0.75) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(90deg)\] at (-1) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (-1) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (2) should be [scaleZ(3) perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.75) should be [rotateX(525deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (1) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.75) should be [rotateX(525deg) rotateY(600deg) rotateZ(675deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (2) should be [rotate(630deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (1) should be [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (1) should be [rotate3d(7, 8, 9, 450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0) should be [rotate3d(7, 8, 9, 100deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.75) should be [rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (1) should be [rotate3d(7, 8, 9, 260deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0) should be [rotate3d(7, 8, 9, 0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (-1) should be [scaleZ(0) perspective(300px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0) should be [rotateZ(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (-1) should be [rotateY(-800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(90deg)\] to [none\] at (0.25) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (2) should be [rotateX(1400deg) rotateY(1600deg) rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0) should be [rotateX(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (2) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (2) should be [rotateY(1600deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.25) should be [rotateZ(225deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.25) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (2) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (-1) should be [rotateY(-800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.25) should be [scaleZ(1.25) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (0.75) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (1) should be [rotate3d(0, 1, 1, 180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (-1) should be [rotate3d(0.41, -0.41, -0.82, 120deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.25) should be [rotate3d(7, 8, 9, 140deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (2) should be [rotateX(1400deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (-1) should be [rotateX(-700deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.75) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (2) should be [rotate3d(7, 8, 9, 420deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (2) should be [rotateX(1400deg) rotateY(1600deg) rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (-1) should be [rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (-1) should be [rotateX(-700deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0) should be [rotate3d(7, 8, 9, 0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (-1) should be [rotate3d(0.41, -0.41, -0.82, 120deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (2) should be [rotate3d(7, 8, 9, 900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (1) should be [rotate3d(0, 1, 1, 180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (1) should be [scaleZ(2) perspective(500px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (1) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.25) should be [rotate3d(7, 8, 9, 140deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (-1) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.75) should be [rotate3d(7, 8, 9, 220deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.25) should be [rotateX(175deg) rotateY(200deg) rotateZ(225deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (1) should be [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (2) should be [rotateX(1400deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (2) should be [rotateY(1600deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (2) should be [rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.25) should be [skewX(12.5rad) perspective(425px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0) should be [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (2) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (2) should be [rotate(630deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (1) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.25) should be [rotate3d(0.524083, 0.804261, 0.280178, 106.91deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (2) should be [rotate3d(0.71, 0, -0.71, 90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (2) should be [rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.25) should be [rotateX(175deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (-1) should be [rotate(-270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.75) should be [rotate3d(0.163027, 0.774382, 0.611354, 153.99deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(90deg)\] at (2) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (2) should be [rotate3d(0.71, 0, -0.71, 90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.75) should be [rotate3d(7, 8, 9, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.75) should be [scaleZ(1.75) perspective(475px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.75) should be [rotateX(525deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (2) should be [skewX(30rad) perspective(600px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.75) should be [rotate3d(7, 8, 9, 220deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (-1) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(90deg)\] to [none\] at (0.75) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.75) should be [rotateY(600deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (-1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0) should be [rotate3d(1, 1, 0, 90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (2) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (0.25) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0) should be [rotate3d(7, 8, 9, 100deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (2) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (1) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (1) should be [rotate3d(0, 1, 0, 450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (2) should be [rotateX(1400deg) rotateY(1600deg) rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (-1) should be [rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(90deg)\] to [none\] at (0.25) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (2) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (-1) should be [rotate(-270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (2) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (-1) should be [skewX(0rad) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0) should be [rotateZ(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0) should be [perspective(400px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.75) should be [rotateY(600deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.75) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (1) should be [rotateY(800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.75) should be [skewX(17.5rad) perspective(475px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (1) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.75) should be [scaleZ(1.75) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (-1) should be [rotate3d(7, 8, 9, -450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (-1) should be [rotate3d(7, 8, 9, -450deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (-1) should be [rotate(-270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.25) should be [perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (1) should be [rotate3d(7, 8, 9, 450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (-1) should be [skewX(0rad) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.75) should be [rotate(255deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (-1) should be [rotateX(-700deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (1) should be [rotateZ(900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.25) should be [rotateY(200deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (-1) should be [scaleZ(0) perspective(300px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.75) should be [skewX(17.5rad) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (0) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (2) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.25) should be [rotate3d(7, 8, 9, 140deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (2) should be [rotateY(1600deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (2) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.75) should be [rotateX(525deg) rotateY(600deg) rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (1) should be [rotate3d(0, 1, 1, 180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (-1) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0) should be [rotate3d(1, 1, 0, 90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.25) should be [rotateX(175deg) rotateY(200deg) rotateZ(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0) should be [rotateX(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (1) should be [rotate3d(7, 8, 9, 260deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (-1) should be [rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.25) should be [rotateZ(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (-1) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.75) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.75) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.75) should be [rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(90deg)\] to [none\] at (0.75) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.75) should be [perspective(475px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (-1) should be [perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.25) should be [rotateX(175deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (1) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (1) should be [rotate3d(0, 1, 0, 450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (-1) should be [rotate3d(7, 8, 9, -60deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0) should be [rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (-1) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0.75) should be [rotate3d(7, 8, 9, 220deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (2) should be [rotate3d(7, 8, 9, 420deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.25) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (1) should be [rotateX(700deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.25) should be [scaleZ(1.25) perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.25) should be [rotate(105deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (-1) should be [rotate(-270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (-1) should be [perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.75) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (0) should be [rotate3d(7, 8, 9, 100deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.25) should be [rotateY(200deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.75) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (2) should be [perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.25) should be [rotateZ(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.25) should be [rotateX(175deg) rotateY(200deg) rotateZ(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (2) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.75) should be [rotateX(525deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (1) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.75) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.75) should be [perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (0.75) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (-1) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (-1) should be [rotate3d(7, 8, 9, -60deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (-1) should be [perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (1) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (-1) should be [scaleZ(0) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.25) should be [rotateY(200deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.75) should be [rotate3d(7, 8, 9, 337.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.75) should be [scaleZ(1.75) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.75) should be [rotate(255deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(90deg)\] at (0.75) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.25) should be [perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (2) should be [rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (1) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (1) should be [scaleZ(2) perspective(500px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.25) should be [rotateY(675deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (-1) should be [rotate3d(0.41, -0.41, -0.82, 120deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (-1) should be [rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.75) should be [rotate(255deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (-1) should be [rotateX(-700deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.25) should be [rotateX(175deg) rotateY(200deg) rotateZ(225deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (1) should be [rotate(330deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (-1) should be [scaleZ(0) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (-1) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(90deg)\] to [none\] at (0.25) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (2) should be [rotate3d(7, 8, 9, 900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(90deg)\] at (-1) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (-1) should be [rotateY(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0) should be [rotateY(900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (-1) should be [skewX(0rad) perspective(300px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.25) should be [perspective(425px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (1) should be [rotate3d(7, 8, 9, 260deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (2) should be [rotateX(1400deg) rotateY(1600deg) rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.75) should be [rotateX(525deg) rotateY(600deg) rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (2) should be [rotate3d(7, 8, 9, 420deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0) should be [rotate3d(7, 8, 9, 0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.75) should be [rotate3d(7, 8, 9, 337.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (-1) should be [rotateX(-700deg) rotateY(-800deg) rotateZ(-900deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.25) should be [rotate3d(7, 8, 9, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0.75) should be [rotateX(525deg) rotateY(600deg) rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (2) should be [rotate3d(7, 8, 9, 420deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (2) should be [rotate3d(0.71, 0, -0.71, 90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.25) should be [rotate3d(0.524083, 0.804261, 0.280178, 106.91deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.75) should be [perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.25) should be [rotateZ(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(90deg)\] to [none\] at (-1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (2) should be [rotateX(1400deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.25) should be [skewX(12.5rad) perspective(425px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0) should be [skewX(10rad) perspective(400px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (2) should be [rotate(630deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.25) should be [rotate(105deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.75) should be [rotate(255deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (-1) should be [rotateY(-800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(90deg)\] at (2) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0) should be [rotate(30deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (-1) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0.25) should be [perspective(425px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateY(900deg)\] at (0.25) should be [rotateY(225deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.75) should be [skewX(17.5rad) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\] to [rotateX(700deg) rotateY(800deg) rotateZ(900deg)\] at (0) should be [rotateX(0deg) rotateY(0deg) rotateZ(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (1) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0.25) should be [rotateY(200deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.75) should be [rotateX(525deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (2) should be [rotateZ(1800deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (-1) should be [rotate3d(0, 1, 0, -450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateZ(0deg)\] to [rotateZ(900deg)\] at (0.75) should be [rotateZ(675deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (1) should be [rotate(330deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0) should be [rotate3d(0, 1, 0, 0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (2) should be [rotateX(1400deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (0) should be [perspective(400px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (-1) should be [rotateY(-800deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) perspective(400px)\] to [skewX(20rad) perspective(500px)\] at (0.75) should be [skewX(17.5rad) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (0.25) should be [rotate3d(0, 1, 0, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateX(0deg)\] to [rotateX(700deg)\] at (0.25) should be [rotateX(175deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(90deg)\] to [none\] at (2) should be [rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(90deg)\] at (0.25) should be [rotate(22.5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(30deg)\] to [rotate(330deg)\] at (0.25) should be [rotate(105deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (1) should be [rotateY(800deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (-1) should be [rotate3d(7, 8, 9, -450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.25) should be [rotate3d(7, 8, 9, 112.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (1) should be [rotate3d(7, 8, 9, 450deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 1, 0, 450deg)\] at (0.75) should be [rotate3d(0, 1, 0, 337.5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotateY(0deg)\] to [rotateY(800deg)\] at (0) should be [rotateY(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(0, 1, 0, 0deg)\] to [rotate3d(0, 2, 0, 450deg)\] at (2) should be [rotate3d(0, 1, 0, 900deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (2) should be [rotateY(-900deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(90deg)\] to [none\] at (0.25) should be [rotate(67.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate3d(7, 8, 9, 100deg)\] to [rotate3d(7, 8, 9, 260deg)\] at (1) should be [rotate3d(7, 8, 9, 260deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (0.25) should be [rotate3d(7, 8, 9, 112.5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [perspective(400px)\] to [perspective(500px)\] at (2) should be [perspective(600px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1) perspective(400px)\] to [scaleZ(2) perspective(500px)\] at (0.75) should be [scaleZ(1.75) perspective(475px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate3d(7, 8, 9, 0deg)\] to [rotate3d(7, 8, 9, 450deg)\] at (-1) should be [rotate3d(7, 8, 9, -450deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate3d(1, 1, 0, 90deg)\] to [rotate3d(0, 1, 1, 180deg)\] at (0.75) should be [rotate3d(0.163027, 0.774382, 0.611354, 153.99deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotateY(900deg)\] to [rotateZ(0deg)\] at (0.75) should be [rotateY(225deg)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-002.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-002.html.ini
index ab072437844..d896b54ed12 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-002.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-002.html.ini
@@ -1,5 +1,556 @@
 [transform-interpolation-002.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.75) should be [scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.25) should be [scaleY(6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (2) should be [scale(2, -1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0) should be [scale3d(2, 3, 5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (2) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.75) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (1) should be [scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (2) should be [scaleX(30) scaleY(1.5) scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (1) should be [scale3d(2, 3, 5)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.25) should be [scaleX(12.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (1) should be [scale(20, 9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (-1) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.25) should be [scaleX(12.5) scaleY(0.625) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (1) should be [scale(1, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (2) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (-1) should be [scaleX(0) scaleY(0) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.75) should be [scale(17.5, 8)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (-1) should be [scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (-1) should be [scaleX(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.75) should be [scale3d(17.5, 0.875, 1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.25) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.25) should be [scale(0.25, 0.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (2) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (2) should be [scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0) should be [scale3d(2, 3, 5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (-1) should be [scaleX(0) scaleY(0) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (2) should be [scale(2, -1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.25) should be [scale(0.25, 0.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0) should be [scaleX(10) scaleY(0.5) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.25) should be [scale(12.5, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (2) should be [scale3d(30, 1.5, 3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.25) should be [scale3d(12.5, 0.625, 1.25)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (-1) should be [scale3d(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.75) should be [scale(17.5, 8)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.75) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0) should be [scaleX(10)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.75) should be [scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (1) should be [scale3d(20, 1, 2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (2) should be [scale3d(30, 1.5, 3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0) should be [scaleX(10) scaleY(0.5) scaleZ(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.25) should be [scaleY(6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (-1) should be [scale(-1, 2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.25) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (-1) should be [scale3d(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0) should be [scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0) should be [scaleY(5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.25) should be [scaleX(12.5) scaleY(0.625) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (-1) should be [scaleY(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (2) should be [scale(30, 13)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.75) should be [scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (2) should be [scale(30, 13)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.25) should be [scale3d(12.5, 0.625, 1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.75) should be [scaleX(17.5) scaleY(0.875) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.75) should be [scaleY(8)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (2) should be [scale3d(30, 1.5, 3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.75) should be [scale3d(17.5, 0.875, 1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (2) should be [scaleX(30)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (-1) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (-1) should be [scaleZ(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (2) should be [scaleX(30)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.75) should be [scale(0.75, 0.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (-1) should be [scaleX(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0) should be [scaleY(5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.25) should be [scaleX(12.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.75) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.75) should be [scaleX(17.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.75) should be [scale(0.75, 0.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (-1) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (-1) should be [scaleY(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.25) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.25) should be [scaleY(6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (-1) should be [scale3d(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0) should be [scale3d(10, 0.5, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0) should be [scale(10, 5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.75) should be [scale3d(17.5, 0.875, 1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (1) should be [scale3d(1, 1, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (2) should be [scale(30, 13)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.25) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0) should be [scale3d(10, 0.5, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (2) should be [scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (1) should be [scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (2) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (1) should be [scaleX(20) scaleY(1) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (-1) should be [scale(-1, 2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (2) should be [scale(30, 13)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (1) should be [scaleX(20)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.75) should be [scaleX(17.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.75) should be [scale3d(17.5, 0.875, 1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (2) should be [scaleX(30) scaleY(1.5) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (1) should be [scaleX(20) scaleY(1) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.75) should be [scaleX(17.5) scaleY(0.875) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.75) should be [scaleY(8)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0) should be [scale(10, 5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (2) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.75) should be [scaleX(17.5) scaleY(0.875) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (1) should be [scaleX(20)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (2) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.25) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (2) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.25) should be [scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (-1) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (-1) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.75) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (-1) should be [scaleZ(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (-1) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.75) should be [scaleX(17.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (-1) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (-1) should be [scaleY(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (-1) should be [scaleX(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (2) should be [scaleX(30)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (1) should be [scale(1, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.25) should be [scale(0.25, 0.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (2) should be [scaleX(30) scaleY(1.5) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (1) should be [scaleY(9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.25) should be [scale(12.5, 6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.25) should be [scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (2) should be [scale3d(30, 1.5, 3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0) should be [scale3d(1, 1, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (-1) should be [scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (-1) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.25) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (1) should be [scale3d(1, 1, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.25) should be [scaleX(12.5) scaleY(0.625) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.75) should be [scaleY(8)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (2) should be [scaleX(30) scaleY(1.5) scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.25) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (-1) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (-1) should be [scale3d(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.75) should be [scale(0.75, 0.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (-1) should be [scaleX(0) scaleY(0) scaleZ(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0) should be [scale(0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.25) should be [scale3d(12.5, 0.625, 1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (1) should be [scale(1, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.75) should be [scaleX(17.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.25) should be [scaleX(12.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.25) should be [scaleX(12.5) scaleY(0.625) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (2) should be [scale(2, -1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.25) should be [scale(0.25, 0.75)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (2) should be [scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (-1) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.75) should be [scale(17.5, 8)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (-1) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.75) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.75) should be [scale(17.5, 8)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0) should be [scaleX(10)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (2) should be [scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (1) should be [scaleY(9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.75) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0.75) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.25) should be [scale3d(1.75, 2.5, 4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.75) should be [scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (1) should be [scale3d(20, 1, 2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (-1) should be [scaleX(0) scaleY(0) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (-1) should be [scaleY(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (2) should be [scaleY(13)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(10, 0.5, 1)\] to [scale3d(20, 1, 2)\] at (0.25) should be [scale3d(12.5, 0.625, 1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (2) should be [scale(2, -1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (2) should be [scaleY(13)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (-1) should be [scale(-1, 2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.25) should be [scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0) should be [scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (0.75) should be [scale(0.75, 0.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (0.25) should be [scaleX(12.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.25) should be [scale(12.5, 6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (-1) should be [scale3d(3, 5, 9)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.25) should be [scaleY(6)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (-1) should be [scale(-1, 2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (1) should be [scale3d(2, 3, 5)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (0.25) should be [scale(12.5, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(1)\] to [scaleZ(2)\] at (0.25) should be [scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (2) should be [scaleY(13)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (0.75) should be [scale3d(1.25, 1.5, 2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (-1) should be [scaleX(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(0)\] to [scaleY(0)\] at (1) should be [scale(1, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [scale3d(2, 3, 5)\] at (0) should be [scale3d(1, 1, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale(10, 5)\] to [scale(20, 9)\] at (1) should be [scale(20, 9)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scale3d(2, 3, 5)\] to [none\] at (2) should be [scale3d(0, -1, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (2) should be [scaleY(13)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleY(5)\] to [scaleY(9)\] at (0.75) should be [scaleY(8)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleX(10) scaleY(0.5) scaleZ(1)\] to [scaleX(20) scaleY(1) scaleZ(2)\] at (0.75) should be [scaleX(17.5) scaleY(0.875) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleX(10)\] to [scaleX(20)\] at (2) should be [scaleX(30)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-003.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-003.html.ini
index eeeb89a8175..5664f064c47 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-003.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-003.html.ini
@@ -1,5 +1,442 @@
 [transform-interpolation-003.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (2) should be [skewX(30rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0) should be [skewX(10rad) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.75) should be [skewY(17.5rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.75) should be [skewX(17.5rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.25) should be [scaleZ(3.25) matrix3d(1, 0, 0, 0, 0.389352, 1, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.75) should be [scaleZ(3.75) matrix3d(1, 0, 0, 0, 1.16806, 1, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (1) should be [translateY(90%) scaleZ(2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (2) should be [skewX(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.25) should be [skewY(12.5rad)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.75) should be [scaleZ(3.75) matrix3d(1, 0, 0, 0, 1.16806, 1, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (2) should be [skewX(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.25) should be [skewY(12.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.75) should be [scaleZ(3.75) matrix3d(1, 0, 0, 0, 1.16806, 1, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.75) should be [scaleZ(3.75) matrix3d(1, 0, 0, 0, 1.16806, 1, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (2) should be [skewY(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0) should be [skewX(10rad) scaleZ(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.75) should be [skewY(17.5rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.25) should be [skewX(12.5rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (1) should be [scaleZ(4) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.25) should be [skewX(12.5rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (1) should be [skewX(20rad) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (2) should be [skewY(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (1) should be [scaleZ(4) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (2) should be [skewX(30rad)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (2) should be [skewY(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (1) should be [scaleZ(4) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (1) should be [skewY(20rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (2) should be [scaleZ(5) matrix3d(1, 0, 0, 0, 3.11482, 1, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0) should be [scaleZ(3) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (-1) should be [skewX(0rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (2) should be [scaleZ(5) matrix3d(1, 0, 0, 0, 3.11482, 1, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (1) should be [translateY(90%) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.25) should be [scaleZ(3.25) matrix3d(1, 0, 0, 0, 0.389352, 1, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (-1) should be [scaleZ(2) matrix3d(1, 0, 0, 0, -1.55741, 1, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.25) should be [scaleZ(3.25) matrix3d(1, 0, 0, 0, 0.389352, 1, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (-1) should be [scaleZ(2) matrix3d(1, 0, 0, 0, -1.55741, 1, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.25) should be [skewY(12.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (1) should be [skewX(20rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0) should be [skewY(10rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0) should be [skewX(10rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (-1) should be [skewY(0rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0) should be [scaleZ(3) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.75) should be [skewY(17.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.75) should be [skewX(17.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (2) should be [scaleZ(5) matrix3d(1, 0, 0, 0, 3.11482, 1, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (-1) should be [skewX(0rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (2) should be [skewX(30rad) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (1) should be [translateY(90%) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0) should be [skewY(10rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (2) should be [skewY(30rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.75) should be [skewY(17.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (1) should be [scaleZ(4) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (-1) should be [skewY(0rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (2) should be [scaleZ(5) matrix3d(1, 0, 0, 0, 3.11482, 1, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0) should be [scaleZ(3) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0) should be [skewX(10rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0) should be [skewX(10rad) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.75) should be [skewX(17.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (1) should be [skewX(20rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (-1) should be [skewX(0rad) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0) should be [skewX(10rad) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.75) should be [skewX(17.5rad)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (1) should be [skewX(20rad) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (-1) should be [scaleZ(2) matrix3d(1, 0, 0, 0, -1.55741, 1, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (1) should be [translateY(90%) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0) should be [scaleZ(3) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (0.25) should be [scaleZ(3.25) matrix3d(1, 0, 0, 0, 0.389352, 1, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (0.75) should be [skewX(17.5rad) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) scaleZ(1)\] to [skewX(20rad) scaleZ(2)\] at (1) should be [skewX(20rad) scaleZ(2)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (0.25) should be [skewY(12.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (-1) should be [skewY(0rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (-1) should be [skewX(0rad)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (-1) should be [translateY(50%) scaleZ(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (-1) should be [skewY(0rad)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0.75) should be [translateY(85%) scaleZ(1.75)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.25) should be [skewX(12.5rad)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (1) should be [skewX(20rad) scaleZ(2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (0.25) should be [skewX(12.5rad)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad) scaleZ(2)\] at (0.25) should be [skewX(12.5rad) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad)\] to [skewX(20rad)\] at (-1) should be [skewX(0rad)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (2) should be [translateY(110%) scaleZ(3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%) scaleZ(2)\] at (0.25) should be [translateY(75%) scaleZ(1.25)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%) scaleZ(1)\] to [translateY(90%) scaleZ(2)\] at (0) should be [translateY(70%) scaleZ(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [scaleZ(3) perspective(400px)\] to [scaleZ(4) skewX(1rad) perspective(500px)\] at (-1) should be [scaleZ(2) matrix3d(1, 0, 0, 0, -1.55741, 1, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewY(10rad)\] to [skewY(20rad)\] at (1) should be [skewY(20rad)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-004.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-004.html.ini
index 477238cc89d..a0f428bb0a8 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-004.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-004.html.ini
@@ -1,5 +1,784 @@
 [transform-interpolation-004.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (1) should be [translate3d(13px, 90%, 3em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (1) should be [translate(13px, 90%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.25) should be [translate3d(7px, -6px, 11px) skewX(1.25rad) matrix3d(1, 0, 0, 0, 0, 1.25, 0, 0, 0, 0, 1, -0.001875, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (-1) should be [translateX(11px) translateY(50%) translateZ(1em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.75) should be [translateX(12.75px) translateY(85%) translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (-1) should be [translateY(50%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.75) should be [translate3d(12.75px, 85%, 2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.75) should be [skewX(17.5rad) translateY(85%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.75) should be [translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.25) should be [skewX(12.5rad) translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.75) should be [translateY(85%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.25) should be [translate3d(12.25px, 75%, 2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (-1) should be [translate3d(12px, 4px, 16px) skewX(0rad) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.005, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0) should be [translate(12px, 70%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.75) should be [translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (-1) should be [translate3d(12px, 4px, 16px) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 100, 200, 300, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (-1) should be [translate3d(12px, 4px, 16px) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.75) should be [translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (2) should be [translateX(14px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0) should be [matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.25) should be [translateX(12.25px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0) should be [translateX(12px) translateY(70%) translateZ(2em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.75) should be [translate(12.75px, 85%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.25) should be [translate(12.25px, 75%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (2) should be [translate(14px, 110%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (2) should be [matrix3d(1, 0, 0, 0, -11.227342763749263, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, -0.0014653608247422677, -8, 4, -12, 0.9861443298969074)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.25) should be [translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 200, 400, 600, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (-1) should be [translateZ(1em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.25) should be [translateY(75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0) should be [skewX(10rad) translateY(70%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.25) should be [translate3d(7px, -6px, 11px) skewX(1.25rad) matrix3d(1, 0, 0, 0, 0, 1.25, 0, 0, 0, 0, 1, -0.001875, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0) should be [translate3d(8px, -4px, 12px) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.75) should be [translate(12.75px, 85%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0) should be [translateX(12px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.75) should be [translateX(12.75px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.75) should be [translateY(85%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (2) should be [translate3d(0px, -20px, 4px) matrix3d(1, 0, 0, 0, -4.67222, 3, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 1.1186572632293585, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.002378247422680413, 6, -3, 9, 1.0012989690721648)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 1.1186572632293585, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.002378247422680413, 6, -3, 9, 1.0012989690721648)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (2) should be [translate3d(0px, -20px, 4px) skewX(3rad) matrix3d(1, 0, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -0.7525665307288518, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.002128247422680412, 2, -1, 3, 1.001298969072165)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.25) should be [translateX(12.25px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (-1) should be [translate3d(12px, 4px, 16px) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (1) should be [translate3d(13px, 90%, 3em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (-1) should be [translate3d(11px, 50%, 1em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (2) should be [translate3d(14px, 110%, 4em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 200, 400, 600, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0) \]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.25) should be [translate3d(7px, -6px, 11px) skewX(1.25rad) matrix3d(1, 0, 0, 0, 0, 1.25, 0, 0, 0, 0, 1, -0.001875, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (-1) should be [skewX(0rad) translateY(50%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (2) should be [matrix3d(1, 0, 0, 0, -11.227342763749263, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, -0.0014653608247422677, -8, 4, -12, 0.9861443298969074)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.0029653608247422686, 16, -8, 24, 0.986144329896907)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (2) should be [translate3d(14px, 110%, 4em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.25) should be [translateX(12.25px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.75) should be [translate3d(5px, -10px, 9px) skewX(1.75rad) matrix3d(1, 0, 0, 0, 0, 1.75, 0, 0, 0, 0, 1, -0.000625, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0.621795827675797, 1, 0, 0, 0, 0, 1, 0, 2, -1, 3, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 75, 150, 225, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.0029653608247422686, 16, -8, 24, 0.986144329896907)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0) should be [matrix(1, 0, 1.5574077246549023, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.75) should be [translateX(12.75px) translateY(85%) translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (2) should be [matrix3d(1, 0, 0, 0, -11.227342763749263, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, -0.0014653608247422677, -8, 4, -12, 0.9861443298969074)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.25) should be [translateX(12.25px) translateY(75%) translateZ(2.25em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0) should be [translateZ(2em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.25) should be [translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (2) should be [translateX(14px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (2) should be [translateX(14px) translateY(110%) translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (2) should be [translateX(14px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.0029653608247422686, 16, -8, 24, 0.986144329896907)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (1) should be [translate3d(4px, -12px, 8px) matrix3d(1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.75) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 25, 50, 75, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0) should be [matrix(1, 0, 1.5574077246549023, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 1, 0, 0, 0, 0, 1, 0, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (-1) should be [translate3d(11px, 50%, 1em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (-1) should be [translate(11px, 50%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (2) should be [translate3d(0px, -20px, 4px) matrix3d(1, 0, 0, 0, -4.67222, 3, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0) should be [matrix(1, 0, 1.5574077246549023, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.25) should be [translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0) should be [translate3d(8px, -4px, 12px) skewX(1rad) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.75) should be [translate(12.75px, 85%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (2) should be [translate(14px, 110%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (1) should be [translateX(13px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -1.2494279662824135, 1, 0, 0, 0, 0, 1, 0, 6, -3, 9, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.25) should be [skewX(12.5rad) translateY(75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (2) should be [matrix3d(1, 0, 0, 0, -5.9274874511779405, 1, 0, 0, 0, 0, 1, 0, 16, -8, 24, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.25) should be [translate3d(12.25px, 75%, 2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (-1) should be [translateX(11px) translateY(50%) translateZ(1em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (2) should be [translate3d(0px, -20px, 4px) skewX(3rad) matrix3d(1, 0, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.75) should be [translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0) \]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (2) should be [translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 100, 200, 300, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0.621795827675797, 1, 0, 0, 0, 0, 1, 0, 2, -1, 3, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (-1) should be [translate3d(12px, 4px, 16px) skewX(0rad) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.005, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (-1) should be [translateZ(1em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (-1) should be [translate3d(11px, 50%, 1em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (-1) should be [translate(11px, 50%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.25) should be [translateX(12.25px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (2) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -100, -200, -300, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.25) should be [translate3d(12.25px, 75%, 2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (2) should be [translateX(14px) translateY(110%) translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (2) should be [skewX(30rad) translateY(110%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 200, 400, 600, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.25) should be [translateX(12.25px) translateY(75%) translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (-1) should be [translateY(50%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (-1) should be [skewX(0rad) translateY(50%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0) should be [matrix(1, 0, 1.5574077246549023, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (-1) should be [translate3d(11px, 50%, 1em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.75) should be [translate3d(5px, -10px, 9px) matrix3d(1, 0, 0, 0, 0.681366, 1.75, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.25) should be [translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (2) should be [translateY(110%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -1.2494279662824135, 1, 0, 0, 0, 0, 1, 0, 6, -3, 9, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (2) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -100, -200, -300, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 75, 150, 225, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0) should be [translateX(12px) translateY(70%) translateZ(2em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (1) should be [translate(13px, 90%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (-1) should be [matrix3d(1, 0, 0, 0, 5.2998553125713235, 1, 0, 0, 0, 0, 1, 0, -8, 4, -12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0) should be [translate3d(8px, -4px, 12px) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (2) should be [translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (1) should be [skewX(20rad) translateY(90%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0) \]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (-1) should be [translateZ(1em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.25) should be [translateZ(2.25em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.75) should be [skewX(17.5rad) translateY(85%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0) should be [matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (2) should be [translate3d(14px, 110%, 4em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (-1) should be [skewX(0rad) translateY(50%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (1) should be [translateX(13px) translateY(90%) translateZ(3em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (2) should be [translate3d(0px, -20px, 4px) skewX(3rad) matrix3d(1, 0, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.25) should be [translateX(12.25px) translateY(75%) translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 100, 200, 300, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (1) should be [translate3d(4px, -12px, 8px) skewX(2rad) matrix(1, 0, 0, 2, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (2) should be [matrix3d(1, 0, 0, 0, -5.9274874511779405, 1, 0, 0, 0, 0, 1, 0, 16, -8, 24, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.75) should be [translate3d(5px, -10px, 9px) skewX(1.75rad) matrix3d(1, 0, 0, 0, 0, 1.75, 0, 0, 0, 0, 1, -0.000625, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 1.1186572632293585, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.002378247422680413, 6, -3, 9, 1.0012989690721648)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (-1) should be [translate(11px, 50%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0.621795827675797, 1, 0, 0, 0, 0, 1, 0, 2, -1, 3, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (2) should be [translate(14px, 110%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (2) should be [translate3d(0px, -20px, 4px) matrix3d(1, 0, 0, 0, -4.67222, 3, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (-1) should be [translate3d(12px, 4px, 16px) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.003, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0) should be [skewX(10rad) translateY(70%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0) should be [translateZ(2em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (2) should be [translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -0.7525665307288518, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.002128247422680412, 2, -1, 3, 1.001298969072165)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (1) should be [translateX(13px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0) should be [translate3d(12px, 70%, 2em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.25) should be [translate(12.25px, 75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (2) should be [translateX(14px) translateY(110%) translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (2) should be [translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 1, 0, 0, 0, 0, 1, 0, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.75) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 25, 50, 75, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 1, 0, 0, 0, 0, 1, 0, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (1) should be [translate3d(4px, -12px, 8px) matrix3d(1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (2) should be [translateX(14px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (-1) should be [translate(11px, 50%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.25) should be [translate3d(7px, -6px, 11px) matrix3d(1, 0, 0, 0, 1.46007, 1.25, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.75) should be [translateX(12.75px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.75) should be [skewX(17.5rad) translateY(85%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0) should be [translate3d(8px, -4px, 12px) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (-1) should be [matrix3d(1, 0, 0, 0, 5.2998553125713235, 1, 0, 0, 0, 0, 1, 0, -8, 4, -12, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -0.7525665307288518, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.002128247422680412, 2, -1, 3, 1.001298969072165)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.25) should be [skewX(12.5rad) translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.75) should be [translate3d(5px, -10px, 9px) matrix3d(1, 0, 0, 0, 0.681366, 1.75, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (2) should be [translate3d(14px, 110%, 4em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.25) should be [translate3d(7px, -6px, 11px) matrix3d(1, 0, 0, 0, 1.46007, 1.25, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.25) should be [skewX(12.5rad) translateY(75%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 75, 150, 225, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.25) should be [translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (2) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -100, -200, -300, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.75) should be [translate3d(5px, -10px, 9px) matrix3d(1, 0, 0, 0, 0.681366, 1.75, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (-1) should be [translateY(50%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.75) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 25, 50, 75, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (2) should be [matrix3d(1, 0, 0, 0, -11.227342763749263, 3, 0, 0, 0.021237113402061854, -0.010618556701030927, 1.03, -0.0014653608247422677, -8, 4, -12, 0.9861443298969074)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (1) should be [translateZ(3em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0) \]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.25) should be [translate3d(7px, -6px, 11px) matrix3d(1, 0, 0, 0, 1.46007, 1.25, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0) should be [translate3d(8px, -4px, 12px) skewX(1rad) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (2) should be [translate(14px, 110%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.75) should be [translateX(12.75px) translateY(85%) translateZ(2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (-1) should be [translateY(50%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (2) should be [matrix3d(1, 0, 0, 0, -5.9274874511779405, 1, 0, 0, 0, 0, 1, 0, 16, -8, 24, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 1, 0, 0, 0, 0, 1, 0, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.75) should be [translate3d(5px, -10px, 9px) skewX(1.75rad) matrix3d(1, 0, 0, 0, 0, 1.75, 0, 0, 0, 0, 1, -0.000625, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0) should be [translate(12px, 70%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0) should be [translate3d(8px, -4px, 12px) matrix3d(1, 0, 0, 0, 1.55741, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.75) should be [translate3d(5px, -10px, 9px) matrix3d(1, 0, 0, 0, 0.681366, 1.75, 0, 0, 0, 0, 1, -0.002125, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.75) should be [translate3d(12.75px, 85%, 2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (2) should be [translateX(14px) translateY(110%) translateZ(4em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (1) should be [translateY(90%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.75) should be [translate(12.75px, 85%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (2) should be [translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0) should be [translateX(12px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.75) should be [translate3d(12.75px, 85%, 2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 1.1186572632293585, 1.25, 0, 0, -0.0151159793814433, 0.00755798969072165, 0.9775, -0.002378247422680413, 6, -3, 9, 1.0012989690721648)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (-1) should be [translateX(11px) translateY(50%) translateZ(1em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (1) should be [translate3d(4px, -12px, 8px) skewX(2rad) matrix(1, 0, 0, 2, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0) should be [matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (-1) should be [translateX(11px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0) should be [translate3d(8px, -4px, 12px) skewX(1rad) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 200, 400, 600, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (2) should be [skewX(30rad) translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (-1) should be [skewX(0rad) translateY(50%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (1) should be [translateZ(3em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -1.2494279662824135, 1, 0, 0, 0, 0, 1, 0, 6, -3, 9, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (-1) should be [translate3d(12px, 4px, 16px) skewX(0rad) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.005, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -1.2494279662824135, 1, 0, 0, 0, 0, 1, 0, 6, -3, 9, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (-1) should be [translateX(11px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (1) should be [translate3d(4px, -12px, 8px) skewX(2rad) matrix(1, 0, 0, 2, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (2) should be [skewX(30rad) translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.75) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 25, 50, 75, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (-1) should be [translateX(11px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (2) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, -100, -200, -300, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.75) should be [translateX(12.75px) translateY(85%) translateZ(2.75em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.75) should be [translateY(85%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.75) should be [translate3d(12.75px, 85%, 2.75em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0.621795827675797, 1, 0, 0, 0, 0, 1, 0, 2, -1, 3, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (1) should be [translate3d(4px, -12px, 8px) skewX(2rad) matrix(1, 0, 0, 2, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (2) should be [skewX(30rad) translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (0.75) should be [skewX(17.5rad) translateY(85%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (0.25) should be [translate3d(7px, -6px, 11px) matrix3d(1, 0, 0, 0, 1.46007, 1.25, 0, 0, 0, 0, 1, -0.002375, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (2) should be [translate3d(0px, -20px, 4px) skewX(3rad) matrix3d(1, 0, 0, 0, 0, 3, 0, 0, 0, 0, 1, 0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (2) should be [translate3d(0px, -20px, 4px) matrix3d(1, 0, 0, 0, -4.67222, 3, 0, 0, 0, 0, 1, -0.0015, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0) should be [translate3d(12px, 70%, 2em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0.75) should be [translateY(85%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (-1) should be [translate3d(12px, 4px, 16px) skewX(0rad) matrix3d(1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, -0.005, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.25) should be [translate(12.25px, 75%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (2) should be [matrix3d(1, 0, 0, 0, -5.9274874511779405, 1, 0, 0, 0, 0, 1, 0, 16, -8, 24, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (-1) should be [matrix3d(1, 0, 0, 0, 5.2998553125713235, 1, 0, 0, 0, 0, 1, 0, -8, 4, -12, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.75) should be [translateX(12.75px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0) should be [matrix3d(1, 0, 0, 0, 1.5574077246549023, 1, 0, 0, -0.02, 0.01, 0.97, -0.0025, 8, -4, 12, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (1) should be [translate3d(4px, -12px, 8px) matrix3d(1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0) should be [translate3d(8px, -4px, 12px) skewX(1rad) matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, -0.0025, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (2) should be [translateY(110%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0.25) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 75, 150, 225, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (0.75) should be [matrix3d(1, 0, 0, 0, -0.7525665307288518, 1.75, 0, 0, -0.005115979381443298, 0.002557989690721649, 0.9924999999999999, -0.002128247422680412, 2, -1, 3, 1.001298969072165)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (-1) should be [matrix3d(1, 0, 0, 0, 0, 0, 0, 0, -0.03876288659793814, 0.01938144329896907, 0.94, -0.0029653608247422686, 16, -8, 24, 0.986144329896907)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) scaleY(2) perspective(500px)\] at (1) should be [translate3d(4px, -12px, 8px) matrix3d(1, 0, 0, 0, 0, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (0) should be [translateY(70%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate(12px, 70%)\] to [translate(13px, 90%)\] at (0.25) should be [translate(12.25px, 75%)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.25) should be [translate3d(7px, -6px, 11px) skewX(1.25rad) matrix3d(1, 0, 0, 0, 0, 1.25, 0, 0, 0, 0, 1, -0.001875, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (0.25) should be [translateX(12.25px) translateY(75%) translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateY(70%)\] to [translateY(90%)\] at (1) should be [translateY(90%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (-1) should be [translateX(11px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (1) should be [translateX(13px) translateY(90%) translateZ(3em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [translate3d(4px, -12px, 8px) skewX(2rad) scaleY(2)\] at (0.75) should be [translate3d(5px, -10px, 9px) skewX(1.75rad) matrix3d(1, 0, 0, 0, 0, 1.75, 0, 0, 0, 0, 1, -0.000625, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3D(100px, 200px, 300px)\] to [none\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 100, 200, 300, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (0.25) should be [translateZ(2.25em)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (2) should be [translateZ(4em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translate3d(8px, -4px, 12px) skewX(1rad) perspective(400px)\] to [scaleY(2) skewX(2rad) perspective(500px)\] at (1) should be [matrix3d(1, 0, 0, 0, -2.185039863261519, 2, 0, 0, 0, 0, 1, -0.002, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px) translateY(70%) translateZ(2em)\] to [translateX(13px) translateY(90%) translateZ(3em)\] at (-1) should be [translateX(11px) translateY(50%) translateZ(1em)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [translateZ(2em)\] to [translateZ(3em)\] at (-1) should be [translateZ(1em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translateX(12px)\] to [translateX(13px)\] at (0.75) should be [translateX(12.75px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [skewX(1rad)\] to [translate3d(8px, -4px, 12px) skewX(2rad)\] at (-1) should be [matrix3d(1, 0, 0, 0, 5.2998553125713235, 1, 0, 0, 0, 0, 1, 0, -8, 4, -12, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [translate3d(12px, 70%, 2em)\] to [translate3d(13px, 90%, 3em)\] at (0.25) should be [translate3d(12.25px, 75%, 2.25em)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [skewX(10rad) translateY(70%)\] to [skewX(20rad) translateY(90%)\] at (1) should be [skewX(20rad) translateY(90%)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-005.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-005.html.ini
index 74b4381cf8c..b99aad4b362 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-005.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-005.html.ini
@@ -1,5 +1,904 @@
 [transform-interpolation-005.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.25) should be [matrix(2.5, 0, 0, 4, 0, -4.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (0.75) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.3333333333333333) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.75) should be [matrix(5.5, 0, 1.31, 1.75, 4.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (2) should be [matrix(13, 0, 6, 3, 12, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(180deg)\] to [none\] at (0.25) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (1) should be [matrix(7, 0, 2, 2, 6, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (2) should be [rotate(720deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (-1) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(360deg)\] at (2) should be [rotate(720deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (1) should be [matrix(1, 0, 0, 1, 0, -6)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.25) should be [matrix3d(2.441256919175, 0.0, 0.0, 0.0, 0.0, 2.571299218825, 0.0, 0.0, 0.0, 0.0, 2.6947530634, 0.0, 20.35889062555, 20.561444082325, 20.800684839349998, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (2) should be [matrix3d(3.0761619932999995, 0.0, 0.0, 0.0, 0.0, 2.3221331858, 0.0, 0.0, 0.0, 0.0, 2.9442666928000003, 0.0, 20.5331850252, 19.7952290231, 20.002012795600002, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (-1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (2) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (2) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.5) should be [matrix(4, 0, 2, 4, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0) should be [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.5) should be [matrix(2, 0, 0, 3, 0, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.3333333333333333) should be [matrix(3, 0, 1.6667, 5, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (-1) should be [rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (0.75) should be [rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.5) should be [matrix(2, 0, 0, 3, 0, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (2) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (-1) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (-1) should be [matrix(5, 0, 0, 9, 0, -12)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.25) should be [matrix(2.5, 0, 0, 4, 0, -4.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (-1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.3333333333333333) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0) should be [matrix(1, 0, 0, 1, 0, -6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (0.75) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (-1) should be [matrix(5, 0, 0, 9, 0, -12)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (1) should be [matrix(7, 0, 1, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (-1) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(360deg)\] at (0.75) should be [rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (1) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0) should be [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.25) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.25) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (2) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (1) should be [matrix(0, 7, -1, 0, 6, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (-1) should be [matrix3d(1.9877532948000005, 0.0, 0.0, 0.0, 0.0, 2.7492749567000003, 0.0, 0.0, 0.0, 0.0, 2.5165290423999997, 0.0, 20.2343946258, 21.1087405532, 21.371164870599998, 1.0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (2) should be [rotate(720deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (1) should be [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (1) should be [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.25) should be [matrix(2.5, 0, 0.31, 1.25, 1.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (-1) should be [matrix3d(-0.6299594065765657, -0.10825090106268696, -0.20133311671001855, 5.485724217214554, 6.358051978686152, 0.16496896269344588, 1.5760051143537075, -54.21568355620423, 0.7106057459805782, -1.1596356050622005, -0.11495342545397585, -4.913752963990824, -1.03125, -1.125, 3.5625, -5.901513951904114)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.3333333333333333) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (1) should be [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0) should be [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.75) should be [matrix3d(2.622658368925, 0.0, 0.0, 0.0, 0.0, 2.500108923675, 0.0, 0.0, 0.0, 0.0, 2.7660426718, 0.0, 20.408689025450002, 20.342525493975, 20.572492826850002, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.6666666666666666) should be [matrix(5, 0, 2, 3, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (-1) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (2) should be [matrix(13, 0, -10, -5, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.75) should be [matrix(1.5, 0, 0, 2, 0, -1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (2) should be [matrix(-1, 0, 0, -3, 0, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (-1) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.25) should be [matrix3d(0.9041890962319094, 0.3522701519297133, -0.15240204298176957, -0.1428256720529315, -0.7579798772527586, 0.6803606288839232, -0.05133336076757235, 0.37904689530895724, -0.1957679784745485, 0.38554138029509327, 0.8226186974340638, 0.3370288143441876, -0.296875, -0.015625, 0.328125, 0.5930529142680923)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (-1) should be [matrix(-5, 0, -13, 13, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (0.25) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (-1) should be [matrix(-5, 0, -13, 13, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0) should be [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (2) should be [matrix(-1, 0, 0, -3, 0, 6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.75) should be [matrix(1.5, 0, 0, 2, 0, -1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.25) should be [matrix3d(0.7912976716694541, -0.4517927901159618, -0.6868745974719376, 1.2522201536338506, 0.7952183069582651, 0.06340410955800829, -0.7956629784232128, 2.2561737435012983, 0.345639443327071, -0.8934490945546473, 0.830131443385676, 1.2606901484983566, -1.0078125, 0.75, -0.703125, 2.4888661932358946)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0) should be [matrix(1, 0, 0, 7, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (-1) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (2) should be [matrix3d(-1.1789992641434441, -0.7109729379601547, -0.4455746537954199, -21.703089533128907, -0.11137581475421703, -0.08822983871000473, -0.05695380894007451, -2.22667264132605, -3.1443917136741506, 1.8952588096345078, 2.426615889772007, -21.697523130750138, -1.5, 2.0625, -3.1875, -5.901513951904121)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (2) should be [matrix(13, 0, -10, -5, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.5) should be [matrix(2, 0, 0, 3, 0, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (1) should be [matrix(7, 0, 2, 2, 6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (2) should be [matrix(13, 0, -10, -5, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.6666666666666666) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(360deg)\] at (2) should be [rotate(720deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (-1) should be [matrix3d(-0.0000000000000002377810622383943, -1.0671050586638147, -0.08972656766237302, 1.3740432449326199, 0.98484601036295, -2.653201092395309, 0.6753819540610847, 3.6127240080250744, -2.7988839807429846, -1.2090004194153336, -0.5183744226115445, -0.7936088631686278, 1.1875, 0.0625, -1.3125, 5.340768914473683)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (2) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (2) should be [matrix3d(-0.5844534449366048, -0.42278005999296053, -0.4650580659922564, -0.6817595809063256, 0.9156938760088464, 0.3851647027225889, 0.9244443507516923, 0.7218225020358241, -0.0803568793574344, 0.1719974850210706, -0.49676609633513097, -0.25968177786904373, -2.375, -0.125, 2.625, 5.340768914473685)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(180deg)\] at (0.25) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.3333333333333333) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (2) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (2) should be [matrix3d(0.39048513570444376, 0.14780794797065988, 0.6963068100217401, -4.857907861239344, -2.967682789284791, 0.6004978769584385, -3.5472376016872444, 26.675324787979896, -2.5953724498995308, 1.6280843851961373, 0.8163834310586356, 9.001735256585825, 1.34375, -1, 0.9375, -14.881239394516227)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(360deg)\] at (0.25) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.75) should be [matrix(5.5, 0, 1.31, 1.75, 4.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.5) should be [matrix(4, 0, 0.75, 1.5, 3, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (2) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.25) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (-1) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (0.25) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(180deg)\] at (2) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.75) should be [matrix3d(2.622658368925, 0.0, 0.0, 0.0, 0.0, 2.500108923675, 0.0, 0.0, 0.0, 0.0, 2.7660426718, 0.0, 20.408689025450002, 20.342525493975, 20.572492826850002, 1.0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.75) should be [matrix3d(0.35007413226026135, 0.7254385504141292, -0.4977009150941454, 0.09582061929004702, -1.1027525038949482, -0.5884810398827429, 0.4516829688651701, 0.5447944343861767, -0.68717798815684, 0.2657772247405681, 0.5465690479810023, 1.0836207863885503, -0.890625, -0.046875, 0.984375, 0.5930529142680927)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.75) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (-1) should be [matrix(-5, 0, 0, 0, -6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (-1) should be [matrix3d(-0.6299594065765657, -0.10825090106268696, -0.20133311671001855, 5.485724217214554, 6.358051978686152, 0.16496896269344588, 1.5760051143537075, -54.21568355620423, 0.7106057459805782, -1.1596356050622005, -0.11495342545397585, -4.913752963990824, -1.03125, -1.125, 3.5625, -5.901513951904114)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (-1) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.25) should be [matrix3d(0.9041890962319094, 0.3522701519297133, -0.15240204298176957, -0.1428256720529315, -0.7579798772527586, 0.6803606288839232, -0.05133336076757235, 0.37904689530895724, -0.1957679784745485, 0.38554138029509327, 0.8226186974340638, 0.3370288143441876, -0.296875, -0.015625, 0.328125, 0.5930529142680923)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.75) should be [matrix3d(0.6861191524977764, -0.18025672746204927, -0.8710297237546482, 0.6072134247444672, 0.2819931018922366, 0.27778974607679663, -0.6540128246146626, 0.5063632314069845, 0.5509562084361049, -0.3215202993119732, 0.5459062603735321, 2.8697154005492105, -1.3046875, 0.734375, -0.375, 1.6470169329910096)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.6666666666666666) should be [matrix(5, 0, 2, 3, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (-1) should be [matrix(5, 0, 0, 9, 0, -12)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0) should be [matrix(1, 0, 0, 1, 0, -6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(360deg)\] at (-1) should be [rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0) should be [matrix(0, 7, -1, 0, 6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(180deg)\] to [none\] at (0.75) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (-1) should be [matrix3d(-0.0000000000000002377810622383943, -1.0671050586638147, -0.08972656766237302, 1.3740432449326199, 0.98484601036295, -2.653201092395309, 0.6753819540610847, 3.6127240080250744, -2.7988839807429846, -1.2090004194153336, -0.5183744226115445, -0.7936088631686278, 1.1875, 0.0625, -1.3125, 5.340768914473683)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0) should be [matrix(1, 0, 0, 7, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (-1) should be [matrix3d(-0.6413028394192518, -1.0702420910513302, -0.5807595966791961, -18.02447171345163, 0.8211815704840004, 1.0980679097347057, 0.9399408862655454, 22.460730852026064, 0.28421009261178104, -0.5408346238741739, 0.5194791363698213, 3.075163035391172, -2.6875, 2, -1.875, -14.881239394516232)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (-1) should be [matrix3d(-0.6413028394192518, -1.0702420910513302, -0.5807595966791961, -18.02447171345163, 0.8211815704840004, 1.0980679097347057, 0.9399408862655454, 22.460730852026064, 0.28421009261178104, -0.5408346238741739, 0.5194791363698213, 3.075163035391172, -2.6875, 2, -1.875, -14.881239394516232)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (-1) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.25) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (-1) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0) should be [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (2) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (2) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(180deg)\] to [none\] at (0.75) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(180deg)\] at (2) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.3333333333333333) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.6666666666666666) should be [matrix(5, 0, 2, 3, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (2) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (1) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.25) should be [matrix3d(0.7912976716694541, -0.4517927901159618, -0.6868745974719376, 1.2522201536338506, 0.7952183069582651, 0.06340410955800829, -0.7956629784232128, 2.2561737435012983, 0.345639443327071, -0.8934490945546473, 0.830131443385676, 1.2606901484983566, -1.0078125, 0.75, -0.703125, 2.4888661932358946)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (1) should be [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (-1) should be [matrix(-5, 0, -13, 13, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(180deg)\] to [none\] at (-1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (-1) should be [matrix(-5, 0, 0, 0, -6, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (2) should be [matrix3d(-0.5844534449366048, -0.42278005999296053, -0.4650580659922564, -0.6817595809063256, 0.9156938760088464, 0.3851647027225889, 0.9244443507516923, 0.7218225020358241, -0.0803568793574344, 0.1719974850210706, -0.49676609633513097, -0.25968177786904373, -2.375, -0.125, 2.625, 5.340768914473685)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.5) should be [matrix(4, 0, 0.75, 1.5, 3, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.25) should be [matrix3d(0.33652832679595723, 0.55254445148386, -0.7544724447833296, 0.22700224951774267, -0.69720168363685, -0.036373245768780864, 0.28149188169180933, -0.2845156818045006, -0.24737156018941048, 0.31207160370190334, 0.4564821058052897, 0.9220853089096839, -1.2265625, 0.203125, 0.75, 1.647016932991011)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (0.25) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.25) should be [matrix3d(2.441256919175, 0.0, 0.0, 0.0, 0.0, 2.571299218825, 0.0, 0.0, 0.0, 0.0, 2.6947530634, 0.0, 20.35889062555, 20.561444082325, 20.800684839349998, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.25) should be [matrix(2.5, 0, 0, 4, 0, -4.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.6666666666666666) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (2) should be [matrix3d(-1.1789992641434441, -0.7109729379601547, -0.4455746537954199, -21.703089533128907, -0.11137581475421703, -0.08822983871000473, -0.05695380894007451, -2.22667264132605, -3.1443917136741506, 1.8952588096345078, 2.426615889772007, -21.697523130750138, -1.5, 2.0625, -3.1875, -5.901513951904121)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (-1) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (2) should be [matrix3d(-1.1789992641434441, -0.7109729379601547, -0.4455746537954199, -21.703089533128907, -0.11137581475421703, -0.08822983871000473, -0.05695380894007451, -2.22667264132605, -3.1443917136741506, 1.8952588096345078, 2.426615889772007, -21.697523130750138, -1.5, 2.0625, -3.1875, -5.901513951904121)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.25) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.25) should be [matrix(2.5, 0, 0, 4, 0, -4.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.6666666666666666) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.25) should be [matrix(2.5, 0, 0.31, 1.25, 1.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.25) should be [matrix3d(0.7912976716694541, -0.4517927901159618, -0.6868745974719376, 1.2522201536338506, 0.7952183069582651, 0.06340410955800829, -0.7956629784232128, 2.2561737435012983, 0.345639443327071, -0.8934490945546473, 0.830131443385676, 1.2606901484983566, -1.0078125, 0.75, -0.703125, 2.4888661932358946)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (-1) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (2) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (1) should be [matrix(0, 7, -1, 0, 6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (2) should be [matrix3d(0.39048513570444376, 0.14780794797065988, 0.6963068100217401, -4.857907861239344, -2.967682789284791, 0.6004978769584385, -3.5472376016872444, 26.675324787979896, -2.5953724498995308, 1.6280843851961373, 0.8163834310586356, 9.001735256585825, 1.34375, -1, 0.9375, -14.881239394516227)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (-1) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (1) should be [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(180deg)\] at (-1) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.75) should be [matrix(1.5, 0, 0, 2, 0, -1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (1) should be [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (2) should be [matrix3d(-1.1789992641434441, -0.7109729379601547, -0.4455746537954199, -21.703089533128907, -0.11137581475421703, -0.08822983871000473, -0.05695380894007451, -2.22667264132605, -3.1443917136741506, 1.8952588096345078, 2.426615889772007, -21.697523130750138, -1.5, 2.0625, -3.1875, -5.901513951904121)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [rotate(180deg)\] to [none\] at (2) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (2) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (0.25) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.75) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (2) should be [matrix3d(-0.5844534449366048, -0.42278005999296053, -0.4650580659922564, -0.6817595809063256, 0.9156938760088464, 0.3851647027225889, 0.9244443507516923, 0.7218225020358241, -0.0803568793574344, 0.1719974850210706, -0.49676609633513097, -0.25968177786904373, -2.375, -0.125, 2.625, 5.340768914473685)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0) should be [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.25) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.75) should be [matrix3d(2.622658368925, 0.0, 0.0, 0.0, 0.0, 2.500108923675, 0.0, 0.0, 0.0, 0.0, 2.7660426718, 0.0, 20.408689025450002, 20.342525493975, 20.572492826850002, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.25) should be [matrix3d(0.33652832679595723, 0.55254445148386, -0.7544724447833296, 0.22700224951774267, -0.69720168363685, -0.036373245768780864, 0.28149188169180933, -0.2845156818045006, -0.24737156018941048, 0.31207160370190334, 0.4564821058052897, 0.9220853089096839, -1.2265625, 0.203125, 0.75, 1.647016932991011)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0) should be [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.6666666666666666) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.5) should be [matrix(4, 0, 0.75, 1.5, 3, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (1) should be [matrix(1, 0, 0, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.75) should be [matrix3d(0.6861191524977764, -0.18025672746204927, -0.8710297237546482, 0.6072134247444672, 0.2819931018922366, 0.27778974607679663, -0.6540128246146626, 0.5063632314069845, 0.5509562084361049, -0.3215202993119732, 0.5459062603735321, 2.8697154005492105, -1.3046875, 0.734375, -0.375, 1.6470169329910096)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.6666666666666666) should be [matrix(5, 0, 2, 3, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0) should be [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (2) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.75) should be [matrix3d(1.0093457700315165, -0.12746048375025829, -0.24746788943106088, 1.3202120308857304, 0.6128364656690982, 0.7600694601651116, -0.22233359857303325, 1.4081483224940277, 0.21669805381113447, -0.3786082265932788, 0.908354523914928, 0.6747509193960347, -0.3359375, 0.25, -0.234375, 2.4888661932358964)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (2) should be [matrix(-1, 0, 0, -3, 0, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [rotate(180deg)\] to [none\] at (0) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (-1) should be [matrix3d(-1.2484405096414273, 0, -2.727892280477045, 0, 0, 5, 0, 0, 6.365081987779772, 0, -2.9130278558299967, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.6666666666666666) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (-1) should be [matrix(-5, 0, 0, 0, -6, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (0) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (2) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.75) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.6666666666666666) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (2) should be [matrix(13, 0, -10, -5, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(180deg)\] at (0.25) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (2) should be [matrix3d(3.0761619932999995, 0.0, 0.0, 0.0, 0.0, 2.3221331858, 0.0, 0.0, 0.0, 0.0, 2.9442666928000003, 0.0, 20.5331850252, 19.7952290231, 20.002012795600002, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (-1) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (-1) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.6666666666666666) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.25) should be [matrix3d(2.441256919175, 0.0, 0.0, 0.0, 0.0, 2.571299218825, 0.0, 0.0, 0.0, 0.0, 2.6947530634, 0.0, 20.35889062555, 20.561444082325, 20.800684839349998, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (2) should be [matrix3d(0.39048513570444376, 0.14780794797065988, 0.6963068100217401, -4.857907861239344, -2.967682789284791, 0.6004978769584385, -3.5472376016872444, 26.675324787979896, -2.5953724498995308, 1.6280843851961373, 0.8163834310586356, 9.001735256585825, 1.34375, -1, 0.9375, -14.881239394516227)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(180deg)\] at (0.75) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (1) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(360deg)\] at (0.25) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (-1) should be [matrix3d(1.9877532948000005, 0.0, 0.0, 0.0, 0.0, 2.7492749567000003, 0.0, 0.0, 0.0, 0.0, 2.5165290423999997, 0.0, 20.2343946258, 21.1087405532, 21.371164870599998, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.75) should be [matrix3d(0.35007413226026135, 0.7254385504141292, -0.4977009150941454, 0.09582061929004702, -1.1027525038949482, -0.5884810398827429, 0.4516829688651701, 0.5447944343861767, -0.68717798815684, 0.2657772247405681, 0.5465690479810023, 1.0836207863885503, -0.890625, -0.046875, 0.984375, 0.5930529142680927)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(180deg)\] at (0.75) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.3333333333333333) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (-1) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (1) should be [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (-1) should be [matrix3d(-0.6413028394192518, -1.0702420910513302, -0.5807595966791961, -18.02447171345163, 0.8211815704840004, 1.0980679097347057, 0.9399408862655454, 22.460730852026064, 0.28421009261178104, -0.5408346238741739, 0.5194791363698213, 3.075163035391172, -2.6875, 2, -1.875, -14.881239394516232)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (2) should be [matrix(13, 0, 6, 3, 12, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(360deg)\] at (0.75) should be [rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0) should be [matrix(3, 0, 0, 5, 0, -6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(180deg)\] to [none\] at (2) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.75) should be [matrix3d(0.6861191524977764, -0.18025672746204927, -0.8710297237546482, 0.6072134247444672, 0.2819931018922366, 0.27778974607679663, -0.6540128246146626, 0.5063632314069845, 0.5509562084361049, -0.3215202993119732, 0.5459062603735321, 2.8697154005492105, -1.3046875, 0.734375, -0.375, 1.6470169329910096)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (-1) should be [matrix3d(1.9877532948000005, 0.0, 0.0, 0.0, 0.0, 2.7492749567000003, 0.0, 0.0, 0.0, 0.0, 2.5165290423999997, 0.0, 20.2343946258, 21.1087405532, 21.371164870599998, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (-1) should be [matrix3d(1.9877532948000005, 0.0, 0.0, 0.0, 0.0, 2.7492749567000003, 0.0, 0.0, 0.0, 0.0, 2.5165290423999997, 0.0, 20.2343946258, 21.1087405532, 21.371164870599998, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (1) should be [matrix(7, 0, 1, 1, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.75) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.75) should be [matrix3d(0.35007413226026135, 0.7254385504141292, -0.4977009150941454, 0.09582061929004702, -1.1027525038949482, -0.5884810398827429, 0.4516829688651701, 0.5447944343861767, -0.68717798815684, 0.2657772247405681, 0.5465690479810023, 1.0836207863885503, -0.890625, -0.046875, 0.984375, 0.5930529142680927)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (0.25) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.75) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(180deg)\] to [none\] at (-1) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (0.75) should be [rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(360deg)\] at (-1) should be [rotate(-360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (0) should be [rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.25) should be [matrix(2.5, 0, 0.31, 1.25, 1.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.75) should be [matrix3d(1.0093457700315165, -0.12746048375025829, -0.24746788943106088, 1.3202120308857304, 0.6128364656690982, 0.7600694601651116, -0.22233359857303325, 1.4081483224940277, 0.21669805381113447, -0.3786082265932788, 0.908354523914928, 0.6747509193960347, -0.3359375, 0.25, -0.234375, 2.4888661932358964)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.5) should be [matrix(2, 0, 0, 3, 0, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (-1) should be [matrix(-5, 0, -13, 13, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0.75) should be [matrix(1.5, 0, 0, 2, 0, -1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (-1) should be [matrix3d(-0.6299594065765657, -0.10825090106268696, -0.20133311671001855, 5.485724217214554, 6.358051978686152, 0.16496896269344588, 1.5760051143537075, -54.21568355620423, 0.7106057459805782, -1.1596356050622005, -0.11495342545397585, -4.913752963990824, -1.03125, -1.125, 3.5625, -5.901513951904114)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (-1) should be [matrix(-5, 0, 0, 0, -6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.75) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (2) should be [matrix(13, 0, 6, 3, 12, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.75) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.25) should be [matrix3d(0.7912976716694541, -0.4517927901159618, -0.6868745974719376, 1.2522201536338506, 0.7952183069582651, 0.06340410955800829, -0.7956629784232128, 2.2561737435012983, 0.345639443327071, -0.8934490945546473, 0.830131443385676, 1.2606901484983566, -1.0078125, 0.75, -0.703125, 2.4888661932358946)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (2) should be [matrix3d(3.0761619932999995, 0.0, 0.0, 0.0, 0.0, 2.3221331858, 0.0, 0.0, 0.0, 0.0, 2.9442666928000003, 0.0, 20.5331850252, 19.7952290231, 20.002012795600002, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (2) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [rotate(180deg)\] at (2) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (1) should be [matrix(1, 0, 0, 1, 0, -6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.25) should be [matrix3d(2.441256919175, 0.0, 0.0, 0.0, 0.0, 2.571299218825, 0.0, 0.0, 0.0, 0.0, 2.6947530634, 0.0, 20.35889062555, 20.561444082325, 20.800684839349998, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.25) should be [matrix3d(0.9041890962319094, 0.3522701519297133, -0.15240204298176957, -0.1428256720529315, -0.7579798772527586, 0.6803606288839232, -0.05133336076757235, 0.37904689530895724, -0.1957679784745485, 0.38554138029509327, 0.8226186974340638, 0.3370288143441876, -0.296875, -0.015625, 0.328125, 0.5930529142680923)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (0.75) should be [rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (-1) should be [matrix(0, 5, 1, 0, -6, -12)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.75) should be [matrix(5.5, 0, 1.31, 1.75, 4.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.25) should be [matrix3d(0.33652832679595723, 0.55254445148386, -0.7544724447833296, 0.22700224951774267, -0.69720168363685, -0.036373245768780864, 0.28149188169180933, -0.2845156818045006, -0.24737156018941048, 0.31207160370190334, 0.4564821058052897, 0.9220853089096839, -1.2265625, 0.203125, 0.75, 1.647016932991011)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [rotate(180deg)\] at (2) should be [rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.6666666666666666) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (2) should be [matrix3d(0.39048513570444376, 0.14780794797065988, 0.6963068100217401, -4.857907861239344, -2.967682789284791, 0.6004978769584385, -3.5472376016872444, 26.675324787979896, -2.5953724498995308, 1.6280843851961373, 0.8163834310586356, 9.001735256585825, 1.34375, -1, 0.9375, -14.881239394516227)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.75) should be [matrix3d(0.35007413226026135, 0.7254385504141292, -0.4977009150941454, 0.09582061929004702, -1.1027525038949482, -0.5884810398827429, 0.4516829688651701, 0.5447944343861767, -0.68717798815684, 0.2657772247405681, 0.5465690479810023, 1.0836207863885503, -0.890625, -0.046875, 0.984375, 0.5930529142680927)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.25) should be [matrix3d(0.33652832679595723, 0.55254445148386, -0.7544724447833296, 0.22700224951774267, -0.69720168363685, -0.036373245768780864, 0.28149188169180933, -0.2845156818045006, -0.24737156018941048, 0.31207160370190334, 0.4564821058052897, 0.9220853089096839, -1.2265625, 0.203125, 0.75, 1.647016932991011)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.75) should be [matrix3d(1.0093457700315165, -0.12746048375025829, -0.24746788943106088, 1.3202120308857304, 0.6128364656690982, 0.7600694601651116, -0.22233359857303325, 1.4081483224940277, 0.21669805381113447, -0.3786082265932788, 0.908354523914928, 0.6747509193960347, -0.3359375, 0.25, -0.234375, 2.4888661932358964)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (-1) should be [matrix(5, 0, 0, 9, 0, -12)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.5) should be [matrix(4, 0, 2, 4, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (0) should be [matrix(3, 0, 0, 5, 0, -6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (-1) should be [matrix3d(-0.0000000000000002377810622383943, -1.0671050586638147, -0.08972656766237302, 1.3740432449326199, 0.98484601036295, -2.653201092395309, 0.6753819540610847, 3.6127240080250744, -2.7988839807429846, -1.2090004194153336, -0.5183744226115445, -0.7936088631686278, 1.1875, 0.0625, -1.3125, 5.340768914473683)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (2) should be [matrix(-13, 0, 0, -1, 12, 6)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.3333333333333333) should be [matrix(2.5000000000000004, 4.330127018922193, -0.8660254037844386, 0.5000000000000001, 4, -2)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (-1) should be [matrix3d(-0.6299594065765657, -0.10825090106268696, -0.20133311671001855, 5.485724217214554, 6.358051978686152, 0.16496896269344588, 1.5760051143537075, -54.21568355620423, 0.7106057459805782, -1.1596356050622005, -0.11495342545397585, -4.913752963990824, -1.03125, -1.125, 3.5625, -5.901513951904114)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [rotate(360deg)\] at (0.25) should be [rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.3333333333333333) should be [matrix(3, 0, 1.6667, 5, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (2) should be [matrix(13, 0, 6, 3, 12, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.75) should be [matrix(5.5, 0, 1.31, 1.75, 4.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0.25) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (1) should be [rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.3333333333333333) should be [matrix(3, 0, 1.6667, 5, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0.5) should be [matrix(2.8284271247461903, 2.82842712474619, -0.7071067811865475, 0.7071067811865476, 3, -3)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (2) should be [matrix3d(3.0761619932999995, 0.0, 0.0, 0.0, 0.0, 2.3221331858, 0.0, 0.0, 0.0, 0.0, 2.9442666928000003, 0.0, 20.5331850252, 19.7952290231, 20.002012795600002, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(360deg)\] at (-1) should be [rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (0.25) should be [matrix3d(0.9041890962319094, 0.3522701519297133, -0.15240204298176957, -0.1428256720529315, -0.7579798772527586, 0.6803606288839232, -0.05133336076757235, 0.37904689530895724, -0.1957679784745485, 0.38554138029509327, 0.8226186974340638, 0.3370288143441876, -0.296875, -0.015625, 0.328125, 0.5930529142680923)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (2) should be [matrix3d(-0.5844534449366048, -0.42278005999296053, -0.4650580659922564, -0.6817595809063256, 0.9156938760088464, 0.3851647027225889, 0.9244443507516923, 0.7218225020358241, -0.0803568793574344, 0.1719974850210706, -0.49676609633513097, -0.25968177786904373, -2.375, -0.125, 2.625, 5.340768914473685)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.5) should be [matrix(4, 0, 2, 4, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (0.75) should be [matrix3d(1.0093457700315165, -0.12746048375025829, -0.24746788943106088, 1.3202120308857304, 0.6128364656690982, 0.7600694601651116, -0.22233359857303325, 1.4081483224940277, 0.21669805381113447, -0.3786082265932788, 0.908354523914928, 0.6747509193960347, -0.3359375, 0.25, -0.234375, 2.4888661932358964)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.75) should be [matrix3d(1.211140527138306, 0, -0.30925494906815365, 0, 0, 1.5, 0, 0, 0.43295692869541513, 0, 1.6955967379936283, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.25) should be [matrix(2.5, 0, 0.31, 1.25, 1.5, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.5) should be [matrix(4, 0, 2, 4, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [rotate(180deg)\] at (-1) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(1, 0, 0, 7, 0, 0)\] to [matrix(7, 0, 1, 1, 0, 0)\] at (0.3333333333333333) should be [matrix(3, 0, 1.6667, 5, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (2) should be [matrix3d(0, 0, 0, 0, 0, -1, 0, 0, 1.682941969615793, 0, -1.0806046117362795, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] to [none\] at (0.25) should be [matrix3d(1.2804555205291865, 0, -1.1928678300408346, 0, 0, 2.5, 0, 0, 2.215325970075836, 0, 2.377988823839918, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [none\] to [matrix3d(1.0806046117362795, 0, -1.682941969615793, 0, 0, 3, 0, 0, 3.365883939231586, 0, 2.161209223472559, 0, 0, 0, 0, 1)\] at (0) should be [matrix3d(1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] at (-1) should be [matrix3d(-0.0000000000000002377810622383943, -1.0671050586638147, -0.08972656766237302, 1.3740432449326199, 0.98484601036295, -2.653201092395309, 0.6753819540610847, 3.6127240080250744, -2.7988839807429846, -1.2090004194153336, -0.5183744226115445, -0.7936088631686278, 1.1875, 0.0625, -1.3125, 5.340768914473683)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(0, 0.6875, -0.625, 0.3125, -0.6666666666666665, -1, 0.8333333333333334, 0.125, -0.6666666666666665, 0, 0.5, 1.0625, -1.1875, -0.0625, 1.3125, 1)\] to [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] at (0.75) should be [matrix3d(0.6861191524977764, -0.18025672746204927, -0.8710297237546482, 0.6072134247444672, 0.2819931018922366, 0.27778974607679663, -0.6540128246146626, 0.5063632314069845, 0.5509562084361049, -0.3215202993119732, 0.5459062603735321, 2.8697154005492105, -1.3046875, 0.734375, -0.375, 1.6470169329910096)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix3d(0.571428571428571, -0.625, -0.8333333333333346, -0.66666666666669, 0.5, -0.1875, -0.8125, 0.3125, 0.34375, -1, 0.8333333333333327, 1.34375, -1.34375, 1, -0.9375, 1)\] to [none\] at (-1) should be [matrix3d(-0.6413028394192518, -1.0702420910513302, -0.5807595966791961, -18.02447171345163, 0.8211815704840004, 1.0980679097347057, 0.9399408862655454, 22.460730852026064, 0.28421009261178104, -0.5408346238741739, 0.5194791363698213, 3.075163035391172, -2.6875, 2, -1.875, -14.881239394516232)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [none\] to [matrix(7, 0, 2, 2, 6, 0)\] at (0.5) should be [matrix(4, 0, 0.75, 1.5, 3, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (1) should be [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix(1, 0, 0, 1, 0, -6)\] to [matrix(0, 7, -1, 0, 6, 0)\] at (0.3333333333333333) should be [matrix(2.598076211353316, 1.4999999999999998, -0.49999999999999994, 0.8660254037844387, 2, -4)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [matrix3d(2.3505561943, 0.0, 0.0, 0.0, 0.0, 2.6068943664, 0.0, 0.0, 0.0, 0.0, 2.6591082592, 0.0, 20.3339914256, 20.6709033765, 20.9147808456, 1.0)\] to [matrix3d(2.7133590938, 0.0, 0.0, 0.0, 0.0, 2.4645137761, 0.0, 0.0, 0.0, 0.0, 2.801687476, 0.0, 20.4335882254, 20.2330661998, 20.4583968206, 1.0)\] at (0.75) should be [matrix3d(2.622658368925, 0.0, 0.0, 0.0, 0.0, 2.500108923675, 0.0, 0.0, 0.0, 0.0, 2.7660426718, 0.0, 20.408689025450002, 20.342525493975, 20.572492826850002, 1.0)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (2) should be [rotate(-180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [matrix(0, 7, -1, 0, 6, 0)\] to [matrix(1, 0, 0, 1, 0, -6)\] at (0) should be [matrix(0, 7, -1, 0, 6, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [matrix(3, 0, 0, 5, 0, -6)\] to [none\] at (2) should be [matrix(-1, 0, 0, -3, 0, 6)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [rotate(180deg)\] to [none\] at (0.75) should be [rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [rotate(180deg)\] to [none\] at (0.25) should be [rotate(135deg)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-006.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-006.html.ini
index bc7061336f3..0e2282f22af 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-006.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-interpolation-006.html.ini
@@ -1,5 +1,238 @@
 [transform-interpolation-006.html]
-  expected: ERROR
   [transform interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <transform> from [inherit\] to [translate(20px)\] at (0.75) should be [translate(22.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (0.75) should be [translate(17.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [unset\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [initial\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (-1) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [inherit\] to [translate(20px)\] at (0.25) should be [translate(27.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (0) should be [translate(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [unset\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (2) should be [translate(30px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from neutral to [translate(20px)\] at (-1) should be [translate(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (0.25) should be [translate(12.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from neutral to [translate(20px)\] at (0.25) should be [translate(12.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [unset\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [inherit\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from neutral to [translate(20px)\] at (-1) should be [translate(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from neutral to [translate(20px)\] at (0.75) should be [translate(17.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [unset\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (2) should be [translate(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from neutral to [translate(20px)\] at (2) should be [translate(30px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [initial\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (0.25) should be [translate(27.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (0.75) should be [translate(22.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [inherit\] to [translate(20px)\] at (-1) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [initial\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [initial\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (0) should be [translate(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [inherit\] to [translate(20px)\] at (0.25) should be [translate(27.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (0) should be [translate(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [unset\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [initial\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from neutral to [translate(20px)\] at (0.25) should be [translate(12.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from neutral to [translate(20px)\] at (0.75) should be [translate(17.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [inherit\] to [translate(20px)\] at (0.75) should be [translate(22.5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from neutral to [translate(20px)\] at (2) should be [translate(30px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (0) should be [translate(30px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [initial\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [inherit\] to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [unset\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [inherit\] to [translate(20px)\] at (0) should be [translate(30px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [unset\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [unset\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from neutral to [translate(20px)\] at (0.75) should be [translate(17.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [unset\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [unset\] to [translate(20px)\] at (0) should be [translate(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [inherit\] to [translate(20px)\] at (2) should be [translate(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from neutral to [translate(20px)\] at (-1) should be [translate(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [inherit\] to [translate(20px)\] at (0.25) should be [translate(27.5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from neutral to [translate(20px)\] at (2) should be [translate(30px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [inherit\] to [translate(20px)\] at (-1) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from neutral to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [initial\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (-1) should be [translate(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (0.25) should be [translate(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [inherit\] to [translate(20px)\] at (-1) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from neutral to [translate(20px)\] at (0.25) should be [translate(12.5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (0.75) should be [translate(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from neutral to [translate(20px)\] at (1) should be [translate(20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [initial\] to [translate(20px)\] at (0) should be [translate(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform> from [inherit\] to [translate(20px)\] at (2) should be [translate(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (-1) should be [translate(-20px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform> from [inherit\] to [translate(20px)\] at (0.75) should be [translate(22.5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <transform> from [initial\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform> from [initial\] to [translate(20px)\] at (2) should be [translate(40px)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/transform-origin-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/transform-origin-interpolation.html.ini
index 6c8104cccca..9f27223c186 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/transform-origin-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/transform-origin-interpolation.html.ini
@@ -1,5 +1,469 @@
 [transform-origin-interpolation.html]
-  expected: ERROR
   [transform-origin interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.6) should be [60% 110% 2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (1) should be [0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (1.5) should be [-12.5px 137.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (1) should be [0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.6) should be [60% 110% 2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (-0.3) should be [-15px -15px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0) should be [0% 50% 5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (0.6) should be [30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (1) should be [50px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (0.6) should be [10px 70px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (0) should be [10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1.5) should be [150% 200% -2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (-0.3) should be [32.5px 2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (1) should be [50px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (1.5) should be [75px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (0.6) should be [10px 70px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0.3) should be [17.5px 47.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (1) should be [0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (-0.3) should be [-15px -15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.3) should be [30% 80% 3.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (1.5) should be [75px 75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (0.3) should be [17.5px 47.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1) should be [100% 150% 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.6) should be [60% 110% 2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (0) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0.3) should be [17.5px 47.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (0.6) should be [30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0) should be [0% 50% 5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [inherit\] to [20px 20px\] at (0.3) should be [27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (0.3) should be [15px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0) should be [30px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (1.5) should be [-12.5px 137.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (-0.3) should be [32.5px 2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0.6) should be [10px 70px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (0.3) should be [15px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (-0.3) should be [-30% 20% 6.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [inherit\] to [20px 20px\] at (1.5) should be [15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (1.5) should be [-12.5px 137.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (-0.3) should be [-15px -15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from neutral to [20px 20px\] at (1.5) should be [25px 15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (0.6) should be [30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (-0.3) should be [-30% 20% 6.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1.5) should be [150% 200% -2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (-0.3) should be [33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (0) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (-0.3) should be [-30% 20% 6.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (-0.3) should be [-15px -15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (-0.3) should be [-30% 20% 6.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (-0.3) should be [32.5px 2.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (1) should be [50px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [top left\] to [bottom right\] at (1.5) should be [75px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (0.6) should be [30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (0) should be [0px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (1.5) should be [17.5px 17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from neutral to [20px 20px\] at (-0.3) should be [7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1.5) should be [150% 200% -2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (1) should be [50px 50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from neutral to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (0.6) should be [10px 70px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (0.3) should be [17.5px 47.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.3) should be [30% 80% 3.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [top left\] to [bottom right\] at (0) should be [0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (0.3) should be [15px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [center center\] to [0% 100px\] at (1) should be [0px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.3) should be [30% 80% 3.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (0) should be [25px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [unset\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [center center\] to [0% 100px\] at (1.5) should be [-12.5px 137.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.6) should be [60% 110% 2px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1) should be [100% 150% 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [inherit\] to [20px 20px\] at (0.6) should be [24px 16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (0.3) should be [30% 80% 3.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [top left\] to [bottom right\] at (1.5) should be [75px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [top left\] to [bottom right\] at (0.3) should be [15px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [center center\] to [0% 100px\] at (-0.3) should be [32.5px 2.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <transform-origin> from [0% 50% 5px\] to [100% 150% 0px\] at (1.5) should be [150% 200% -2.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from neutral to [20px 20px\] at (0.6) should be [16px 24px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (0.6) should be [22px 22px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from neutral to [20px 20px\] at (0.3) should be [13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <transform-origin> from [initial\] to [20px 20px\] at (0.3) should be [23.5px 23.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <transform-origin> from [initial\] to [20px 20px\] at (-0.3) should be [26.5px 26.5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <transform-origin> from [unset\] to [20px 20px\] at (1) should be [20px 20px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transforms/animation/translate-interpolation.html.ini b/tests/wpt/metadata/css/css-transforms/animation/translate-interpolation.html.ini
index bffca51359d..8f6ece60c55 100644
--- a/tests/wpt/metadata/css/css-transforms/animation/translate-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transforms/animation/translate-interpolation.html.ini
@@ -1,5 +1,4 @@
 [translate-interpolation.html]
-  expected: ERROR
   [Animation between "220px 240px 260px" and "300px 400px 500px" at progress -1]
     expected: FAIL
 
@@ -75,3 +74,1050 @@
   [translate interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (1) should be [240% 160%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 400px\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [none\] to [8px 80% 800px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px\] to [100px 50px\] at (2) should be [300px 150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [200px 100px 200px\] at (-1) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px\] to [100px\] at (0.25) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0.75) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100%\] to [100%\] at (2) should be [300%\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (0) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [initial\] at (-1) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 200px\] to [inherit\] at (0.75) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100%\] to [100%\] at (-1) should be [-300%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [initial\] at (2) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 400px\] to [initial\] at (-1) should be [400px 200px 800px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px 100px\] to [0px\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (2) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0.75) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from neutral to [20px\] at (2) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [unset\] to [20px\] at (0.25) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [200px 100px 200px\] at (0.25) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (0.25) should be [-50px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0.25) should be [150px 75px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0.25) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [unset\] to [20px\] at (0.75) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (1) should be [240% 160%\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0) should be [200px 100px 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (2) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (0) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [0px\] to [-100px -50px 100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (0) should be [-100%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0.25) should be [-50px -25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0.75) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (1) should be [240% 160%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (0.75) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (0.75) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [0px\] to [-100px -50px 100px\] at (2) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (2) should be [-200px -100px -400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (-1) should be [-300px -150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100%\] to [100%\] at (0.75) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (0.75) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [inherit\] at (0.75) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [inherit\] at (0.25) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px\] to [100px\] at (-1) should be [-300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px\] to [100px 50px\] at (-1) should be [-300px -150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (1) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (2) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (0.25) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (-1) should be [-8px -80% -800px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.125) should be [230px 260px 290px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [200px 100px 200px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (-1) should be [-300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (0.75) should be [50%\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0.75) should be [50px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (2) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [inherit\] at (-1) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (2) should be [calc(480% - 480px) calc(320% - 400px) -320px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (-1) should be [-20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [200px 100px 200px\] at (-1) should be [-200px -100px -200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 200px\] to [inherit\] at (0.25) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0) should be [-100px -50px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (-1) should be [400px 200px 800px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from neutral to [20px\] at (2) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (2) should be [16px 160% 1600px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (2) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [initial\] at (-1) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 200px\] to [inherit\] at (-1) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (-1) should be [calc(960px - 240%) calc(800px - 160%) 640px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100%\] to [100%\] at (0.25) should be [-50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [unset\] to [20px\] at (2) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (0.125) should be [1px 10% 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0.75) should be [50px 25px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0.25) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [inherit\] at (-1) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (1) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (0.75) should be [50%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 200px\] to [inherit\] at (2) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [inherit\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (1) should be [8px 80% 800px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (-1) should be [-300%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (1) should be [-100px -50px 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (0) should be [-100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [0px\] to [-100px -50px 100px\] at (-1) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0) should be [220px 240px 260px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (-1) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (1) should be [8px 80% 800px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (2) should be [400px 200px 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px 100px\] to [0px\] at (2) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (-1) should be [140px 80px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (1) should be [240% 160%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (2) should be [calc(480% - 480px) calc(320% - 400px) -320px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0.75) should be [50px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (-1) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [200px 100px 200px\] at (-1) should be [-200px -100px -200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 400px\] to [initial\] at (-1) should be [400px 200px 800px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0) should be [200px 100px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [0px\] to [-100px -50px 100px\] at (-1) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (0.25) should be [5px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0.25) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (2) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (0.25) should be [5px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px\] to [100px\] at (2) should be [300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (2) should be [calc(480% - 480px) calc(320% - 400px) -320px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.875) should be [calc(210% + 60px) calc(140% + 50px) 40px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (-1) should be [calc(960px - 240%) calc(800px - 160%) 640px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (-1) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [0px\] to [-100px -50px 100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px\] to [100px 50px\] at (0.75) should be [50px 25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [unset\] to [20px\] at (2) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px\] to [100px\] at (0.75) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [none\] to [8px 80% 800px\] at (-1) should be [-8px -80% -800px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (1) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (-1) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (2) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [200px 100px 200px\] at (2) should be [400px 200px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [initial\] at (2) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (-1) should be [-20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (1) should be [100px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (-1) should be [400px 200px 800px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (0.25) should be [12.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.875) should be [calc(210% + 60px) calc(140% + 50px) 40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (0.125) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100%\] to [100%\] at (2) should be [300%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0) should be [220px 240px 260px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 200px\] to [inherit\] at (0.75) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (0.875) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0.75) should be [150px 75px 150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (-1) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [200px 100px 200px\] at (2) should be [400px 200px 400px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [initial\] at (0.75) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (-1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from neutral to [20px\] at (2) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px 100px\] to [0px\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px\] to [100px 50px\] at (2) should be [300px 150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.125) should be [230px 260px 290px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0.75) should be [50px 25px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [unset\] to [20px\] at (0.25) should be [5px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0) should be [-100px -50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (-1) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0.75) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.875) should be [290px 380px 470px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px\] to [100px 50px\] at (0.25) should be [-50px -25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (2) should be [16px 160% 1600px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [200px 100px 200px\] at (-1) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.125) should be [230px 260px 290px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [initial\] at (0.25) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [0px\] to [-100px -50px 100px\] at (0.25) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (0.25) should be [-50%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [0px\] to [-100px -50px 100px\] at (0.25) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [inherit\] at (0.75) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (2) should be [300%\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from neutral to [20px\] at (0.25) should be [12.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0) should be [480px 400px 320px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0) should be [-100px -50px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 200px\] to [inherit\] at (2) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (0.875) should be [7px 70% 700px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (0.75) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (2) should be [380px 560px 740px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100%\] to [100%\] at (0.25) should be [-50%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (2) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px\] to [100px\] at (2) should be [300px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from neutral to [20px\] at (0.25) should be [12.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0.25) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (2) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (-1) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [none\] to [8px 80% 800px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0.75) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [200px 100px 200px\] at (2) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100%\] to [100%\] at (0.75) should be [50%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (1) should be [200px 100px 200px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0) should be [-100px -50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [200px 100px 200px\] at (0.75) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (2) should be [380px 560px 740px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.875) should be [290px 380px 470px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [initial\] at (0.75) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (2) should be [300px 150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from neutral to [20px\] at (0.75) should be [17.5px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (2) should be [calc(480% - 480px) calc(320% - 400px) -320px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (2) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px 100px\] to [0px\] at (0.75) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (0.25) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (2) should be [300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.875) should be [290px 380px 470px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (-1) should be [calc(960px - 240%) calc(800px - 160%) 640px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px\] to [100px\] at (0.25) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [unset\] to [20px\] at (-1) should be [-20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from neutral to [20px\] at (-1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (-1) should be [140px 80px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [inherit\] at (2) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0.75) should be [150px 75px 150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px\] to [100px\] at (-1) should be [-300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0.25) should be [50px 25px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (2) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (1) should be [300px 400px 500px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0) should be [480px 400px 320px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [0px\] to [-100px -50px 100px\] at (0.75) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from neutral to [20px\] at (0.75) should be [17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (0.25) should be [-50px -25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (-1) should be [-300px -150px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (1) should be [100px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px -50px 100px\] to [0px\] at (0.75) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 400px\] to [initial\] at (0.75) should be [50px 25px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.875) should be [calc(210% + 60px) calc(140% + 50px) 40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.125) should be [calc(420px + 30%) calc(350px + 20%) 280px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px 100px\] to [0px\] at (-1) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [inherit\] at (2) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 400px\] to [initial\] at (0.25) should be [150px 75px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (2) should be [380px 560px 740px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px -50px\] to [100px 50px\] at (2) should be [300px 150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0.75) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [200px 100px 200px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [8px 80% 800px\] at (0.125) should be [1px 10% 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100px\] to [100px\] at (0) should be [-100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (2) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (1) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.875) should be [calc(210% + 60px) calc(140% + 50px) 40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (-1) should be [-200px -100px -200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 200px\] to [inherit\] at (-1) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.125) should be [calc(420px + 30%) calc(350px + 20%) 280px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (-1) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [none\] to [8px 80% 800px\] at (0.875) should be [7px 70% 700px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [unset\] to [20px\] at (0.75) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [none\] to [8px 80% 800px\] at (2) should be [16px 160% 1600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [inherit\] to [200px 100px 200px\] at (2) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0.25) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [200px 100px 200px\] at (0.25) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [initial\] at (0.25) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [inherit\] to [200px 100px 200px\] at (0.75) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (0.875) should be [7px 70% 700px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px\] to [100px 50px\] at (0.75) should be [50px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0.25) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px 100px\] to [0px\] at (2) should be [100px 50px -100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [200px 100px 200px\] at (0.25) should be [50px 25px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [200px 100px 200px\] at (0.25) should be [50px 25px 50px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (2) should be [300%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [none\] to [8px 80% 800px\] at (0.125) should be [1px 10% 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0.25) should be [50px 25px 50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px\] to [100px 50px\] at (-1) should be [-300px -150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [none\] to [8px 80% 800px\] at (0.875) should be [7px 70% 700px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (1) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (-1) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0.75) should be [125px 175px 275px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (0.25) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.125) should be [calc(420px + 30%) calc(350px + 20%) 280px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [8px 80% 800px\] at (-1) should be [-8px -80% -800px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [0px\] to [-100px -50px 100px\] at (0.75) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (2) should be [400px 200px 400px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0) should be [480px 400px 320px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 400px\] to [initial\] at (2) should be [-200px -100px -400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [none\] to [8px 80% 800px\] at (0.125) should be [1px 10% 100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (0) should be [-100%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (1) should be [100%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 400px\] to [initial\] at (0.25) should be [150px 75px 300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0) should be [480px 400px 320px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (2) should be [300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (0.25) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [-100%\] to [100%\] at (-1) should be [-300%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px 100px\] to [0px\] at (-1) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 200px\] to [inherit\] at (0.25) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (1) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (1) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [-100px\] to [100px\] at (-1) should be [-300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (0.25) should be [175px 125px 225px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (0.75) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (2) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [200px 100px 200px\] at (-1) should be [-200px -100px -200px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 400px\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.875) should be [290px 380px 470px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (2) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100%\] to [100%\] at (-1) should be [-300%\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [initial\] at (0.25) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [200px 100px 200px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [unset\] to [20px\] at (-1) should be [-20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (-1) should be [140px 80px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px\] to [100px\] at (0.75) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (-1) should be [0px 300px 400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [200px 100px 200px\] at (0.75) should be [150px 75px 150px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [initial\] to [200px 100px 200px\] at (0.75) should be [150px 75px 150px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 400px\] to [initial\] at (0.75) should be [50px 25px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [200px 100px 400px\] to [initial\] at (2) should be [-200px -100px -400px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [480px 400px 320px\] to [240% 160%\] at (-1) should be [calc(960px - 240%) calc(800px - 160%) 640px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px\] to [100px 50px\] at (0.25) should be [-50px -25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [0px\] to [-100px -50px 100px\] at (1) should be [-100px -50px 100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100%\] to [100%\] at (0.25) should be [-50%\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (0.75) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [inherit\] at (0.25) should be [25px 50px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [none\] to [8px 80% 800px\] at (2) should be [16px 160% 1600px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [initial\] to [inherit\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from neutral to [20px\] at (0.75) should be [17.5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (2) should be [380px 560px 740px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [0px\] to [-100px -50px 100px\] at (2) should be [-200px -100px 200px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [none\] to [8px 80% 800px\] at (-1) should be [-8px -80% -800px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (2) should be [-200px -100px -400px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [inherit\] to [200px 100px 200px\] at (0) should be [100px 200px 300px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [200px 100px 200px\] to [inherit\] at (-1) should be [300px 0px 100px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (1) should be [300px 400px 500px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [200px 100px 400px\] to [initial\] at (1) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [200px 100px 400px\] to [initial\] at (0.25) should be [150px 75px 300px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (2) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from neutral to [20px\] at (0.75) should be [17.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (-1) should be [-100px -200px -300px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px 100px\] to [0px\] at (0.25) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [-100px -50px 100px\] to [0px\] at (0.75) should be [-25px -12.5px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [inherit\] to [initial\] at (0.25) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [unset\] to [20px\] at (0.75) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from [-100px -50px 100px\] to [0px\] at (0.25) should be [-75px -37.5px 75px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [initial\] to [inherit\] at (0.75) should be [75px 150px 225px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (0.125) should be [230px 260px 290px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <translate> from neutral to [20px\] at (0.25) should be [12.5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [initial\] to [inherit\] at (2) should be [200px 400px 600px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <translate> from [480px 400px 320px\] to [240% 160%\] at (0.125) should be [calc(420px + 30%) calc(350px + 20%) 280px\]]
+    expected: FAIL
+
+  [Web Animations: property <translate> from [none\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <translate> from [220px 240px 260px\] to [300px 400px 500px\] at (-1) should be [140px 80px 20px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transitions/animations/text-shadow-interpolation.html.ini b/tests/wpt/metadata/css/css-transitions/animations/text-shadow-interpolation.html.ini
index 1e38244ddb7..18475bc0495 100644
--- a/tests/wpt/metadata/css/css-transitions/animations/text-shadow-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/animations/text-shadow-interpolation.html.ini
@@ -1,5 +1,355 @@
 [text-shadow-interpolation.html]
-  expected: ERROR
   [text-shadow interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 25px 15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 13px 27px 13px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0) should be [rgb(255, 165, 0) 30px 10px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 192, 0) 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.3) should be [rgba(0, 128, 0, 0.3) 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 16px 24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.6) should be [rgba(0, 128, 0, 0.6) 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 16px 24px 16px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0) should be [rgb(0, 0, 0) 15px 10px 5px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 25px 15px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0) should be [rgb(0, 0, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from neutral to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 7px 33px 7px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 16px 24px 16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.6) should be [rgba(0, 128, 0, 0.6) 12px 12px 12px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.3) should be [rgba(0, 128, 0, 0.3) 6px 6px 6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 13px 27px 13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1.5) should be [rgb(0, 192, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.6) should be [rgba(0, 128, 0, 0.6) 12px 12px 12px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.6) should be [rgba(0, 128, 0, 0.6) 12px 12px 12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1) should be [rgb(0, 128, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 13px 27px 13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0) should be [rgb(255, 165, 0) 10px 30px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 192, 0) 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0) should be [rgba(0, 0, 0, 0) 0px 0px 0px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from neutral to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 7px 33px 7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (-0.3) should be [rgb(0, 0, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (-0.3) should be [rgb(0, 0, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 27px 13px 27px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (-0.3) should be [rgb(0, 0, 0) 24px 16px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0) should be [rgb(255, 165, 0) 30px 10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (-0.3) should be [rgba(0, 0, 0, 0) -6px -6px 0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 25px 15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.3) should be [rgba(0, 128, 0, 0.3) 6px 6px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 192, 0) 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0) should be [rgb(0, 0, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 15px 25px 15px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0) should be [rgb(255, 165, 0) 30px 10px 30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1.5) should be [rgb(255, 248, 0) -30px -20px 35px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.3) should be [rgb(0, 38, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0) should be [rgb(255, 165, 0) 30px 10px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 192, 0) 30px 30px 30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.3) should be [rgb(77, 50, 0) 6px 4px 11px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (0.6) should be [rgb(0, 77, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (-0.3) should be [rgb(255, 176, 0) 33px 7px 33px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from neutral to [green 20px 20px 20px\] at (1.5) should be [rgb(0, 110, 0) 25px 15px 25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from neutral to [green 20px 20px 20px\] at (0.3) should be [rgb(179, 154, 0) 13px 27px 13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [black 10px 10px 10px\] to [currentColor 10px 10px 10px\] at (1) should be [rgb(0, 128, 0) 10px 10px 10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (1) should be [rgb(0, 128, 0) 20px 20px 20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [initial\] to [green 20px 20px 20px\] at (0.3) should be [rgba(0, 128, 0, 0.3) 6px 6px 6px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (1) should be [rgb(255, 165, 0) -15px -10px 25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-shadow> from [black 15px 10px 5px\] to [orange -15px -10px 25px\] at (0.6) should be [rgb(153, 99, 0) -3px -2px 17px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-shadow> from [unset\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-shadow> from [inherit\] to [green 20px 20px 20px\] at (0.6) should be [rgb(102, 143, 0) 24px 16px 24px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transitions/animations/vertical-align-interpolation.html.ini b/tests/wpt/metadata/css/css-transitions/animations/vertical-align-interpolation.html.ini
index 2a09131aa8e..d5c9dc4982f 100644
--- a/tests/wpt/metadata/css/css-transitions/animations/vertical-align-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/animations/vertical-align-interpolation.html.ini
@@ -1,2 +1,349 @@
 [vertical-align-interpolation.html]
-  expected: ERROR
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (1) should be [40%\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (-0.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [40px\] to [40%\] at (-0.5) should be [calc(60px - 20%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [inherit\] to [40px\] at (-0.5) should be [130px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.5) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (0) should be [super\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [40px\] to [40%\] at (1) should be [calc(0px + 40%)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [inherit\] to [40px\] at (-0.5) should be [130px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (1.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from neutral to [40px\] at (-0.5) should be [-5px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [40px\] to [40%\] at (0) should be [calc(40px + 0%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [40px\] to [40%\] at (1.5) should be [calc(-20px + 60%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.6) should be [40%\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from neutral to [40px\] at (-0.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [0px\] to [100px\] at (-0.5) should be [-50px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (0.6) should be [64px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [inherit\] to [40px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [40px\] to [40%\] at (0) should be [calc(40px + 0%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (1.5) should be [40%\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [40px\] to [40%\] at (-0.5) should be [calc(60px - 20%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from neutral to [40px\] at (-0.5) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (-0.3) should be [super\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (1.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [inherit\] to [40px\] at (0.3) should be [82px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (0.5) should be [40%\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (-0.3) should be [super\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [0px\] to [100px\] at (-0.5) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [40px\] to [40%\] at (0.3) should be [calc(28px + 12%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [inherit\] to [40px\] at (-0.5) should be [130px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [40px\] to [40%\] at (-0.5) should be [calc(60px - 20%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (0.3) should be [82px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (0) should be [100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [40px\] to [40%\] at (1.5) should be [calc(-20px + 60%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (1.5) should be [40%\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [40px\] to [40%\] at (1) should be [calc(0px + 40%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (0.3) should be [super\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from neutral to [40px\] at (0.3) should be [19px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [inherit\] to [40px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [40px\] to [40%\] at (-0.5) should be [calc(60px - 20%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (0.5) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [inherit\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (-0.5) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (0.6) should be [40%\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [inherit\] to [40px\] at (0.6) should be [64px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from neutral to [40px\] at (0.6) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [0px\] to [100px\] at (1.5) should be [150px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (1.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [inherit\] to [40px\] at (0.6) should be [64px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [initial\] to [40px\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [40px\] to [40%\] at (0.3) should be [calc(28px + 12%)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [inherit\] to [40px\] at (0.3) should be [82px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [inherit\] to [40px\] at (-0.5) should be [130px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <vertical-align> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [40px\] to [40%\] at (0.3) should be [calc(28px + 12%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [inherit\] to [40px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0) should be [super\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [initial\] to [40px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [40px\] to [40%\] at (1.5) should be [calc(-20px + 60%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [super\] to [40%\] at (1) should be [40%\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [0px\] to [100px\] at (0.6) should be [60px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [40px\] to [40%\] at (0.3) should be [calc(28px + 12%)\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [super\] to [40%\] at (0.5) should be [40%\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (0.6) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [40px\] to [40%\] at (1.5) should be [calc(-20px + 60%)\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [unset\] to [40px\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [0px\] to [100px\] at (-0.5) should be [-50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [inherit\] to [40px\] at (0.6) should be [64px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (1.5) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from neutral to [40px\] at (1.5) should be [55px\]]
+    expected: FAIL
+
+  [Web Animations: property <vertical-align> from [unset\] to [40px\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <vertical-align> from [inherit\] to [40px\] at (0.3) should be [82px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <vertical-align> from [0px\] to [100px\] at (0.3) should be [30px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-transitions/animations/z-index-interpolation.html.ini b/tests/wpt/metadata/css/css-transitions/animations/z-index-interpolation.html.ini
index 99337227f8d..ab1e0cc76f1 100644
--- a/tests/wpt/metadata/css/css-transitions/animations/z-index-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-transitions/animations/z-index-interpolation.html.ini
@@ -1,2 +1,421 @@
 [z-index-interpolation.html]
-  expected: ERROR
+  [CSS Animations: property <z-index> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from neutral to [5\] at (-0.3) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from neutral to [5\] at (1.5) should be [9\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [2\] to [4\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-2\] to [-4\] at (0.6) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from neutral to [5\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (-0.3) should be [-4\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-5\] to [5\] at (0) should be [-5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [inherit\] to [5\] at (-0.3) should be [18\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from neutral to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [2\] to [4\] at (0) should be [2\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [2\] to [4\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (1.5) should be [9\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-5\] to [5\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [inherit\] to [5\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (0.6) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.5) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-2\] to [-4\] at (0.3) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-2\] to [-4\] at (-0.3) should be [-1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-5\] to [5\] at (0.6) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-5\] to [5\] at (0.3) should be [-2\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-2\] to [-4\] at (-0.3) should be [-1\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-2\] to [-4\] at (-0.3) should be [-1\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [2\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (1.5) should be [-5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [inherit\] to [5\] at (0.3) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (0) should be [-2\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [inherit\] to [5\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (1) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (0.3) should be [-3\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from neutral to [5\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [inherit\] to [5\] at (0.6) should be [9\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-2\] to [-4\] at (1.5) should be [-5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from neutral to [5\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (0) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (-0.3) should be [18\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (0.6) should be [2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (0) should be [15\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (1) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-5\] to [5\] at (0.6) should be [1\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-5\] to [5\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from neutral to [5\] at (1.5) should be [9\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (1) should be [4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from neutral to [5\] at (1.5) should be [9\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (0.3) should be [12\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (0.6) should be [9\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-5\] to [5\] at (-0.3) should be [-8\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-5\] to [5\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [inherit\] to [5\] at (0.3) should be [12\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (0.6) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (0.6) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-2\] to [-4\] at (0.3) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-2\] to [-4\] at (0.6) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-2\] to [-4\] at (1.5) should be [-5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-5\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-5\] to [5\] at (-0.3) should be [-8\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from neutral to [5\] at (-0.3) should be [-4\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (0.3) should be [-2\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (0.6) should be [-3\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (-0.3) should be [-1\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (-0.3) should be [-8\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [2\] to [4\] at (1.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (1.5) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-2\] to [-4\] at (1.5) should be [-5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [2\] to [4\] at (0.3) should be [3\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [-2\] to [-4\] at (0.3) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from neutral to [5\] at (0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (0) should be [auto\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-5\] to [5\] at (0.6) should be [1\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-2\] to [-4\] at (0.1) should be [-2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (1.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-5\] to [5\] at (0.3) should be [-2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [-5\] to [5\] at (0) should be [-5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from neutral to [5\] at (0) should be [-2\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (0) should be [15\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (-0.3) should be [unset\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (0.6) should be [5\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [unset\] to [5\] at (0.3) should be [unset\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (-0.3) should be [18\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.6) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-2\] to [-4\] at (1) should be [-4\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [-5\] to [5\] at (-0.3) should be [-8\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (0.5) should be [10\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.5) should be [5\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [inherit\] to [5\] at (0.6) should be [9\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from neutral to [5\] at (0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [2\] to [4\] at (0.6) should be [3\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (0.6) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [inherit\] to [5\] at (1) should be [5\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [unset\] to [5\] at (0) should be [unset\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from neutral to [5\] at (-0.3) should be [-4\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [2\] to [4\] at (-0.3) should be [1\]]
+    expected: FAIL
+
+  [CSS Transitions: property <z-index> from [-2\] to [-4\] at (0.6) should be [-3\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (-0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from neutral to [5\] at (0.3) should be [0\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [initial\] to [5\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (0.6) should be [9\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [auto\] to [10\] at (1) should be [10\]]
+    expected: FAIL
+
+  [Web Animations: property <z-index> from [initial\] to [5\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [inherit\] to [5\] at (0.3) should be [12\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <z-index> from [inherit\] to [5\] at (-0.3) should be [18\]]
+    expected: FAIL
+
+  [CSS Animations: property <z-index> from [auto\] to [10\] at (0.6) should be [10\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-ui/animation/caret-color-interpolation.html.ini b/tests/wpt/metadata/css/css-ui/animation/caret-color-interpolation.html.ini
index 8920c4dacee..53cf77de076 100644
--- a/tests/wpt/metadata/css/css-ui/animation/caret-color-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-ui/animation/caret-color-interpolation.html.ini
@@ -1,5 +1,532 @@
 [caret-color-interpolation.html]
-  expected: ERROR
   [caret-color interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (-0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (0) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (-0.3) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (-0.3) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (0) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (0) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (0) should be [auto\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (0) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [auto\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (0.3) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (0.3) should be [rgb(77, 50, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from neutral to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (0.6) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (0) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [initial\] to [green\] at (-0.3) should be [initial\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (1.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [currentColor\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [initial\] to [green\] at (0.3) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (-0.3) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [black\] to [orange\] at (1.5) should be [rgb(255, 248, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from neutral to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (0.5) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (-0.3) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [auto\] to [green\] at (-0.3) should be [auto\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [auto\] to [green\] at (0) should be [green\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [currentColor\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (1) should be [rgb(255, 165, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [black\] to [orange\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [initial\] to [green\] at (1) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [auto\] to [green\] at (0.3) should be [green\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [currentColor\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [black\] to [orange\] at (0.6) should be [rgb(153, 99, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [inherit\] to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <caret-color> from [inherit\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [black\] to [orange\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [initial\] to [green\] at (0.3) should be [green\]]
+    expected: FAIL
+
+  [Web Animations: property <caret-color> from [currentColor\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <caret-color> from neutral to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <caret-color> from [inherit\] to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-ui/animation/outline-color-interpolation.html.ini b/tests/wpt/metadata/css/css-ui/animation/outline-color-interpolation.html.ini
index cbd9d0788c0..36faf0382ca 100644
--- a/tests/wpt/metadata/css/css-ui/animation/outline-color-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-ui/animation/outline-color-interpolation.html.ini
@@ -1,5 +1,268 @@
 [outline-color-interpolation.html]
-  expected: ERROR
   [outline-color interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <outline-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [inherit\] to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (-0.3) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [inherit\] to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [inherit\] to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (-0.3) should be [white\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [initial\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [initial\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from neutral to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (0) should be [white\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (0.3) should be [rgb(179, 217, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [inherit\] to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (1) should be [orange\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from neutral to [green\] at (0.3) should be [rgb(0, 38, 179)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [initial\] to [green\] at (0.3) should be [rgb(0, 38, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (0) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [initial\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from neutral to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [initial\] to [green\] at (0) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (1) should be [rgb(0, 128, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (0.6) should be [rgb(0, 77, 0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [inherit\] to [green\] at (-0.3) should be [rgb(255, 255, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (0.6) should be [rgb(0, 77, 102)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [white\] to [orange\] at (1.5) should be [rgb(255, 120, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [white\] to [orange\] at (0.3) should be [rgb(255, 228, 179)\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from neutral to [green\] at (0) should be [rgb(0, 0, 255)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (-0.3) should be [rgb(0, 0, 0)\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-color> from [unset\] to [green\] at (1.5) should be [rgb(0, 192, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [inherit\] to [green\] at (0.6) should be [rgb(102, 179, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-color> from [inherit\] to [green\] at (1.5) should be [rgb(0, 65, 0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-color> from [white\] to [orange\] at (0.6) should be [rgb(255, 201, 102)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-ui/animation/outline-offset-interpolation.html.ini b/tests/wpt/metadata/css/css-ui/animation/outline-offset-interpolation.html.ini
index 12a28490f5d..8112b075a92 100644
--- a/tests/wpt/metadata/css/css-ui/animation/outline-offset-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-ui/animation/outline-offset-interpolation.html.ini
@@ -1,5 +1,298 @@
 [outline-offset-interpolation.html]
-  expected: ERROR
   [outline-offset interpolation]
     expected: FAIL
 
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [-5px\] to [5px\] at (0.3) should be [-2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [-5px\] to [5px\] at (-0.3) should be [-8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [-5px\] to [5px\] at (0.6) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (0.6) should be [1px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [-5px\] to [5px\] at (0) should be [-5px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [initial\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (0.3) should be [-2px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [-5px\] to [5px\] at (0.3) should be [-2px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [-5px\] to [5px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [-5px\] to [5px\] at (1) should be [5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [-5px\] to [5px\] at (0.6) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [unset\] to [20px\] at (1.5) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [-5px\] to [5px\] at (1.5) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [unset\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [initial\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [initial\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [-5px\] to [5px\] at (0.6) should be [1px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (0) should be [-5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [-5px\] to [5px\] at (-0.3) should be [-8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [unset\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [unset\] to [20px\] at (0.6) should be [12px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from [-5px\] to [5px\] at (-0.3) should be [-8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [initial\] to [20px\] at (-0.3) should be [-6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [-5px\] to [5px\] at (-0.3) should be [-8px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-offset> from [-5px\] to [5px\] at (0.3) should be [-2px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-offset> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-offset> from [unset\] to [20px\] at (0.3) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-offset> from [unset\] to [20px\] at (0) should be [0px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-ui/animation/outline-width-interpolation.html.ini b/tests/wpt/metadata/css/css-ui/animation/outline-width-interpolation.html.ini
index c996d09746e..4c2f4dc5aca 100644
--- a/tests/wpt/metadata/css/css-ui/animation/outline-width-interpolation.html.ini
+++ b/tests/wpt/metadata/css/css-ui/animation/outline-width-interpolation.html.ini
@@ -1,5 +1,364 @@
 [outline-width-interpolation.html]
-  expected: ERROR
   [outline-width interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <outline-width> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (0) should be [10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (1) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (1) should be [10px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [inherit\] to [20px\] at (-0.3) should be [33px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (0) should be [5px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [unset\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (0.6) should be [24px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [initial\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [thick\] to [15px\] at (1.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (-2) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (0) should be [5px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (1) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [0px\] to [10px\] at (0.6) should be [6px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [0px\] to [10px\] at (1.5) should be [15px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [inherit\] to [20px\] at (0) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [0px\] to [10px\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from neutral to [20px\] at (0.6) should be [16px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (-0.3) should be [2px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [thick\] to [15px\] at (0.6) should be [11px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [0px\] to [10px\] at (0.3) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [unset\] to [20px\] at (0.6) should be [13px\]]
+    expected: FAIL
+
+  [Web Animations: property <outline-width> from [thick\] to [15px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [inherit\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from neutral to [20px\] at (1.5) should be [25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [initial\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (1) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from neutral to [20px\] at (0.3) should be [13px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [initial\] to [20px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <outline-width> from [inherit\] to [20px\] at (0.3) should be [27px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [0px\] to [10px\] at (-0.3) should be [0px\]]
+    expected: FAIL
+
+  [CSS Animations: property <outline-width> from [initial\] to [20px\] at (0) should be [3px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [unset\] to [20px\] at (0.3) should be [8px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from neutral to [20px\] at (-0.3) should be [7px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <outline-width> from [unset\] to [20px\] at (1.5) should be [28px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/css-values/animations/calc-interpolation.html.ini b/tests/wpt/metadata/css/css-values/animations/calc-interpolation.html.ini
new file mode 100644
index 00000000000..57ac6ff7227
--- /dev/null
+++ b/tests/wpt/metadata/css/css-values/animations/calc-interpolation.html.ini
@@ -0,0 +1,298 @@
+[calc-interpolation.html]
+  [CSS Transitions with transition: all: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0%\] to [100px\] at (0.5) should be [calc(0% + 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (1) should be [calc(0% + 100px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0em\] to [100px\] at (1.25) should be [125px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0%\] to [100px\] at (0.25) should be [calc(0% + 25px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0em\] to [100px\] at (0.5) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (0.25) should be [calc(0% + 25px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0em\] to [100px\] at (0.25) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (0) should be [0em\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [-10px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (0.5) should be [calc(0% + 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [calc(50% - 25px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0em\] to [100px\] at (0.25) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [calc(50% - 25px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [calc(100% - 10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (1.25) should be [calc(0% + 125px)\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [30px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [40px\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [30px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (-0.25) should be [calc(0% + -25px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0%\] to [100px\] at (-0.25) should be [calc(0% + -25px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (0.25) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (-0.25) should be [-25px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (0) should be [0%\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [30px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (0.25) should be [calc(0% + 25px)\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0%\] to [100px\] at (1.25) should be [calc(0% + 125px)\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (1.25) should be [125px\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0%\] to [100px\] at (-0.25) should be [calc(0% + -25px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0%\] to [100px\] at (0.25) should be [calc(0% + 25px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (0.75) should be [calc(0% + 75px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (1.25) should be [calc(0% + 125px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0em\] to [100px\] at (-0.25) should be [-25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0%\] to [100px\] at (0.75) should be [calc(0% + 75px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0em\] to [100px\] at (1.25) should be [125px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (0.5) should be [calc(0% + 50px)\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))\]]
+    expected: FAIL
+
+  [Web Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [-10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0em\] to [100px\] at (-0.25) should be [-25px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (0.5) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [50px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0em\] to [100px\] at (1.25) should be [125px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0em\] to [100px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1) should be [calc(100% - 10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [-10px\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [20px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (0.25) should be [25px\]]
+    expected: FAIL
+
+  [Web Animations: property <text-indent> from [0%\] to [100px\] at (-0.25) should be [calc(0% + -25px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (0.75) should be [calc(0% + 75px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (-0.25) should be [-10px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.5) should be [calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0em\] to [100px\] at (0.75) should be [75px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (1.25) should be [calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (-0.25) should be [-25px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0em\] to [100px\] at (0.5) should be [50px\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0%\] to [100px\] at (1) should be [calc(0% + 100px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (1) should be [100px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0) should be [0px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.75) should be [calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <text-indent> from [0%\] to [100px\] at (0.75) should be [calc(0% + 75px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0%\] to [100px\] at (1.25) should be [calc(0% + 125px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <text-indent> from [0em\] to [100px\] at (0.5) should be [50px\]]
+    expected: FAIL
+
+  [CSS Transitions: property <text-indent> from [0%\] to [100px\] at (0.5) should be [calc(0% + 50px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <left> from [calc(50% - 25px)\] to [calc(100% - 10px)\] at (0.25) should be [10px\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
new file mode 100644
index 00000000000..e6e1f29e274
--- /dev/null
+++ b/tests/wpt/metadata/css/cssom-view/matchMedia-display-none-iframe.html.ini
@@ -0,0 +1,2 @@
+[matchMedia-display-none-iframe.html]
+  expected: ERROR
diff --git a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-001.html.ini b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-001.html.ini
index cb2f1b0b706..abd513f8af5 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-001.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-001.html.ini
@@ -1,5 +1,4 @@
 [backdrop-filter-interpolation-001.html]
-  expected: ERROR
   [Animation between "hue-rotate(0deg) blur(6px)" and "hue-rotate(180deg) blur(10px)" at progress -0.5]
     expected: FAIL
 
@@ -45,3 +44,783 @@
   [backdrop-filter interpolation]
     expected: FAIL
 
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0) should be [hue-rotate(10deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0) should be [hue-rotate(10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0) should be [hue-rotate(10deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0) should be [hue-rotate(10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-002.html.ini b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-002.html.ini
index 5bcb8d12b43..c5e2954bc0b 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-002.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-002.html.ini
@@ -1,5 +1,4 @@
 [backdrop-filter-interpolation-002.html]
-  expected: ERROR
   [Animation between "grayscale(0) blur(0px)" and "blur(10px)" at progress -1]
     expected: FAIL
 
@@ -60,3 +59,207 @@
   [backdrop-filter interpolation]
     expected: FAIL
 
+  [Web Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-003.html.ini b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-003.html.ini
index d471737879d..e7375e403e4 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-003.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-003.html.ini
@@ -1,5 +1,4 @@
 [backdrop-filter-interpolation-003.html]
-  expected: ERROR
   [Animation between "url("#svgfilter")" and "none" at progress 0.4]
     expected: FAIL
 
@@ -174,3 +173,567 @@
   [backdrop-filter interpolation]
     expected: FAIL
 
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-004.html.ini b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-004.html.ini
index 77849b1233b..b7c94f819c5 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-004.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/backdrop-filter-interpolation-004.html.ini
@@ -1,5 +1,4 @@
 [backdrop-filter-interpolation-004.html]
-  expected: ERROR
   ["hue-rotate()" and "hue-rotate(360deg)" are valid backdrop-filter values]
     expected: FAIL
 
@@ -183,3 +182,603 @@
   [backdrop-filter interpolation]
     expected: FAIL
 
+  [Web Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <backdrop-filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <backdrop-filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <backdrop-filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-001.html.ini b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-001.html.ini
index a6dbfa24368..d7dfd0ce0ec 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-001.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-001.html.ini
@@ -1,5 +1,4 @@
 [filter-interpolation-001.html]
-  expected: ERROR
   [Animation between "hue-rotate(0deg) blur(6px)" and "hue-rotate(180deg) blur(10px)" at progress -0.5]
     expected: FAIL
 
@@ -39,3 +38,360 @@
   [filter interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0) should be [hue-rotate(80deg) blur(6mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1.5) should be [hue-rotate(95deg) blur(12mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(24deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from neutral to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(25deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from neutral to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(13deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (1) should be [hue-rotate(90deg) blur(10mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(5deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (-0.5) should be [hue-rotate(75deg) blur(4mm)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from neutral to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(16deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.5) should be [hue-rotate(85deg) blur(8mm)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [unset\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(-10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (-0.5) should be [hue-rotate(-90deg) blur(4px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (0) should be [hue-rotate(10deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.5) should be [hue-rotate(90deg) blur(8px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(27deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0.25) should be [hue-rotate(45deg) blur(7px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (0.3) should be [hue-rotate(6deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(80deg) blur(6mm)\] to [hue-rotate(100grad) blur(1cm)\] at (0.25) should be [hue-rotate(82.5deg) blur(7mm)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (0) should be [hue-rotate(0deg) blur(6px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from neutral to [hue-rotate(20deg)\] at (1) should be [hue-rotate(20deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [hue-rotate(20deg)\] at (0.6) should be [hue-rotate(12deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (0) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1) should be [hue-rotate(180deg) blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (-0.5) should be [hue-rotate(35deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [inherit\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(15deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [unset\] to [hue-rotate(20deg)\] at (1.5) should be [hue-rotate(30deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(0deg) blur(6px)\] to [hue-rotate(180deg) blur(10px)\] at (1.5) should be [hue-rotate(270deg) blur(12px)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-002.html.ini b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-002.html.ini
index 4ea39f01976..4d0ca49ef2a 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-002.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-002.html.ini
@@ -1,5 +1,4 @@
 [filter-interpolation-002.html]
-  expected: ERROR
   [Animation between "grayscale(0) blur(0px)" and "blur(10px)" at progress -1]
     expected: FAIL
 
@@ -51,3 +50,357 @@
   [filter interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1) should be [blur(10px) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0) should be [opacity(1) hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0) should be [opacity(1) hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(20px 10px blue)\] to [drop-shadow(20px 10px green)\] at (2147483648) should be [drop-shadow(20px 10px #00FF00\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0) should be [blur(6px) hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(20px 10px blue)\] to [drop-shadow(20px 10px green)\] at (2147483648) should be [drop-shadow(20px 10px #00FF00\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(20px 10px blue)\] to [drop-shadow(20px 10px green)\] at (2147483648) should be [drop-shadow(20px 10px #00FF00\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (1) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(20px 10px blue)\] to [drop-shadow(20px 10px green)\] at (2147483648) should be [drop-shadow(20px 10px #00FF00\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (-0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (1) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.6) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.5) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (0.3) should be [grayscale(0) blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (-0.5) should be [opacity(1) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (1.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1) should be [opacity(0.5) hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (-0.5) should be [blur(4px) hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0) should be [blur(6px) hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px white)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (-0.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0) blur(0px)\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0.25) should be [hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (1.5) should be [opacity(0.25) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.5) should be [opacity(0.75) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.25) should be [hue-rotate(135deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (-0.5) should be [hue-rotate(-90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px #80C080)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #004100)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (1.5) should be [blur(12px) hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate(180deg)\] to [none\] at (0.5) should be [hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(180deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.25) should be [blur(7px) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(180deg)\] at (1.5) should be [hue-rotate(270deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [opacity(0.5) hue-rotate(180deg)\] at (0.25) should be [opacity(0.875) hue-rotate(45deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur(6px)\] to [blur(10px) hue-rotate(180deg)\] at (0.5) should be [blur(8px) hue-rotate(90deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px 0px currentcolor)\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px currentcolor)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-003.html.ini b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-003.html.ini
index 8574d390afe..0120042d0e7 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-003.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-003.html.ini
@@ -1,5 +1,4 @@
 [filter-interpolation-003.html]
-  expected: ERROR
   [Animation between "url("#svgfilter")" and "none" at progress 0.4]
     expected: FAIL
 
@@ -147,3 +146,657 @@
   [filter interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [none\] at (1) should be [contrast(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [blur(10px)\] at (0) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px transparent)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [none\] at (1) should be [brightness(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [invert(1)\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px transparent)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [invert(1)\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [none\] at (1) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [grayscale(1)\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [none\] at (1) should be [saturate(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [none\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [none\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [grayscale(1)\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px transparent)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [blur(10px)\] at (0) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [none\] at (1) should be [opacity(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [none\] at (1) should be [contrast(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [none\] at (1) should be [saturate(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [none\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [sepia(1)\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (-0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [none\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [invert(1)\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [none\] at (1) should be [brightness(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [none\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [sepia(1)\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [invert(1)\] at (1) should be [invert(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (-1) should be [drop-shadow(-20px -10px transparent)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate(0deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (0) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [initial\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (0.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1) should be [drop-shadow(20px 10px green)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [grayscale(1)\] at (1) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [none\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0) should be [drop-shadow(0px 0px 0px transparent)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [opacity(0)\] to [none\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [grayscale(1)\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [contrast(0)\] to [none\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.6) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [brightness(0)\] to [none\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [url("#svgfilter")\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [opacity(0)\] to [none\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [none\] at (1.5) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [grayscale(1)\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (0.3) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [sepia(1)\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (0.5) should be [drop-shadow(10px 5px rgba(0, 128, 0, 0.5))\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [invert(1)\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [none\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [none\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [grayscale(1)\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [url("#svgfilter")\] to [blur(5px)\] at (1) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [none\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [sepia(1)\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [contrast(0)\] to [none\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [none\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [url("#svgfilter")\] to [none\] at (0.6) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [initial\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [sepia(1)\] at (1) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [none\] to [drop-shadow(20px 10px green)\] at (1.5) should be [drop-shadow(30px 15px #00C000)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (1) should be [none\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [url("#svgfilter")\] to [none\] at (-0.3) should be [none\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [none\] to [invert(1)\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [none\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [none\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-004.html.ini b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-004.html.ini
index 5739f28b2f0..b48051c1330 100644
--- a/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-004.html.ini
+++ b/tests/wpt/metadata/css/filter-effects/animation/filter-interpolation-004.html.ini
@@ -1,5 +1,4 @@
 [filter-interpolation-004.html]
-  expected: ERROR
   [Animation between "saturate(0)" and "saturate()" at progress 1]
     expected: FAIL
 
@@ -156,3 +155,447 @@
   [filter interpolation]
     expected: FAIL
 
+  [CSS Transitions: property <filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur()\] to [blur(10px)\] at (-1) should be [blur(0px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (0) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [brightness()\] at (1) should be [brightness()\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [invert(0)\] to [invert()\] at (0) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [sepia(0)\] to [sepia()\] at (-1) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur()\] to [blur(10px)\] at (0) should be [blur()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [opacity()\] at (-1) should be [opacity(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [invert(0)\] to [invert()\] at (1) should be [invert()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1.5) should be [hue-rotate(540deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [opacity()\] at (0) should be [opacity(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [sepia(0)\] to [sepia()\] at (1) should be [sepia()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (-1) should be [grayscale(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [saturate()\] at (-1) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0) should be [hue-rotate()\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1.5) should be [drop-shadow(30px 15px 45px rgb(0, 192, 0))\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [blur()\] to [blur(10px)\] at (1) should be [blur(10px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (1) should be [grayscale()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [contrast(0)\] to [contrast()\] at (1.5) should be [contrast(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (0.5) should be [hue-rotate(180deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (1) should be [hue-rotate(360deg)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [invert(0)\] to [invert()\] at (0.5) should be [invert(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [sepia(0)\] to [sepia()\] at (0) should be [sepia(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [invert(0)\] to [invert()\] at (-1) should be [invert(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [saturate()\] at (0) should be [saturate(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [sepia(0)\] to [sepia()\] at (0.5) should be [sepia(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [brightness()\] at (0) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [grayscale(0)\] to [grayscale()\] at (1.5) should be [grayscale(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [saturate(0)\] to [saturate()\] at (1.5) should be [saturate(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [hue-rotate()\] to [hue-rotate(360deg)\] at (-1) should be [hue-rotate(-360deg)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [brightness()\] at (1.5) should be [brightness(1.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [invert(0)\] to [invert()\] at (1.5) should be [invert(1)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [opacity(0)\] to [opacity()\] at (1.5) should be [opacity(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [contrast()\] at (0) should be [contrast(0)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [opacity()\] at (1) should be [opacity()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0) should be [drop-shadow(0px 0px blue)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [brightness(0)\] to [brightness()\] at (-1) should be [brightness(0)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [grayscale(0)\] to [grayscale()\] at (0.5) should be [grayscale(0.5)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [blur()\] to [blur(10px)\] at (0.5) should be [blur(5px)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (1) should be [drop-shadow(20px 10px 30px green)\]]
+    expected: FAIL
+
+  [CSS Transitions: property <filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [contrast()\] at (-1) should be [contrast(0)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (-1) should be [drop-shadow(-20px -10px blue)\]]
+    expected: FAIL
+
+  [CSS Transitions with transition: all: property <filter> from [drop-shadow(0px 0px)\] to [drop-shadow(20px 10px 30px green)\] at (0.5) should be [drop-shadow(10px 5px 15px rgb(0, 64, 128))\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [opacity(0)\] to [opacity()\] at (0.5) should be [opacity(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [brightness(0)\] to [brightness()\] at (0.5) should be [brightness(0.5)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [saturate()\] at (1) should be [saturate()\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [blur()\] to [blur(10px)\] at (1.5) should be [blur(15px)\]]
+    expected: FAIL
+
+  [CSS Animations: property <filter> from [saturate(0)\] to [saturate()\] at (0.5) should be [saturate(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [contrast()\] at (0.5) should be [contrast(0.5)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [sepia(0)\] to [sepia()\] at (1.5) should be [sepia(1)\]]
+    expected: FAIL
+
+  [Web Animations: property <filter> from [contrast(0)\] to [contrast()\] at (1) should be [contrast()\]]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/fetch/api/cors/cors-preflight-redirect.any.js.ini b/tests/wpt/metadata/fetch/api/cors/cors-preflight-redirect.any.js.ini
index 8a9abe9e756..36898d70d30 100644
--- a/tests/wpt/metadata/fetch/api/cors/cors-preflight-redirect.any.js.ini
+++ b/tests/wpt/metadata/fetch/api/cors/cors-preflight-redirect.any.js.ini
@@ -1,68 +1,8 @@
 [cors-preflight-redirect.any.html]
   type: testharness
-  [Redirection 301 on preflight failed]
-    expected: FAIL
-
-  [Redirection 301 after preflight failed]
-    expected: FAIL
-
-  [Redirection 302 on preflight failed]
-    expected: FAIL
-
-  [Redirection 302 after preflight failed]
-    expected: FAIL
-
-  [Redirection 303 on preflight failed]
-    expected: FAIL
-
-  [Redirection 303 after preflight failed]
-    expected: FAIL
-
-  [Redirection 307 on preflight failed]
-    expected: FAIL
-
-  [Redirection 307 after preflight failed]
-    expected: FAIL
-
-  [Redirection 308 on preflight failed]
-    expected: FAIL
-
-  [Redirection 308 after preflight failed]
-    expected: FAIL
-
 
 [cors-preflight-redirect.any.worker.html]
   type: testharness
-  [Redirection 301 on preflight failed]
-    expected: FAIL
-
-  [Redirection 301 after preflight failed]
-    expected: FAIL
-
-  [Redirection 302 on preflight failed]
-    expected: FAIL
-
-  [Redirection 302 after preflight failed]
-    expected: FAIL
-
-  [Redirection 303 on preflight failed]
-    expected: FAIL
-
-  [Redirection 303 after preflight failed]
-    expected: FAIL
-
-  [Redirection 307 on preflight failed]
-    expected: FAIL
-
-  [Redirection 307 after preflight failed]
-    expected: FAIL
-
-  [Redirection 308 on preflight failed]
-    expected: FAIL
-
-  [Redirection 308 after preflight failed]
-    expected: FAIL
-
   [cors-preflight-redirect]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/response.window.js.ini b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
index 7c6560d5882..4ba7558ca5d 100644
--- a/tests/wpt/metadata/fetch/content-type/response.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/response.window.js.ini
@@ -309,30 +309,24 @@
   [<iframe>: separate response Content-Type: */* text/html]
     expected: FAIL
 
-  [<iframe>: combined response Content-Type: text/html */*;charset=gbk]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html;charset=gbk text/plain text/html]
     expected: FAIL
 
   [<iframe>: separate response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" \\" text/plain]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html */*]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/html;" text/plain]
-    expected: FAIL
-
-  [<iframe>: separate response Content-Type: text/html;x=" text/plain]
-    expected: FAIL
-
   [<iframe>: combined response Content-Type: text/html;x=" text/plain]
     expected: FAIL
 
-  [<iframe>: separate response Content-Type: text/plain */*;charset=gbk]
+  [<iframe>: combined response Content-Type: text/html;" text/plain]
+    expected: FAIL
+
+  [<iframe>: separate response Content-Type: text/html */*;charset=gbk]
+    expected: FAIL
+
+  [<iframe>: combined response Content-Type: text/html;" \\" text/plain]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/fetch/content-type/script.window.js.ini b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
index 5c001592859..d2df9b78483 100644
--- a/tests/wpt/metadata/fetch/content-type/script.window.js.ini
+++ b/tests/wpt/metadata/fetch/content-type/script.window.js.ini
@@ -56,6 +56,3 @@
   [separate text/javascript x/x]
     expected: FAIL
 
-  [separate text/javascript;charset=windows-1252 error text/javascript]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/fetch/metadata/navigation.https.sub.html.ini b/tests/wpt/metadata/fetch/metadata/navigation.https.sub.html.ini
deleted file mode 100644
index a53ed577de8..00000000000
--- a/tests/wpt/metadata/fetch/metadata/navigation.https.sub.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[navigation.https.sub.html]
-  expected: TIMEOUT
diff --git a/tests/wpt/metadata/fetch/metadata/navigation.tentative.https.sub.html.ini b/tests/wpt/metadata/fetch/metadata/navigation.tentative.https.sub.html.ini
new file mode 100644
index 00000000000..9fd8a4e2881
--- /dev/null
+++ b/tests/wpt/metadata/fetch/metadata/navigation.tentative.https.sub.html.ini
@@ -0,0 +1,2 @@
+[navigation.tentative.https.sub.html]
+  expected: TIMEOUT
diff --git a/tests/wpt/metadata/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html.ini b/tests/wpt/metadata/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html.ini
new file mode 100644
index 00000000000..9cd247dcb2d
--- /dev/null
+++ b/tests/wpt/metadata/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html.ini
@@ -0,0 +1,5 @@
+[multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html]
+  expected: TIMEOUT
+  [Https downgrade-upgrade prefetch => No headers]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html.ini b/tests/wpt/metadata/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html.ini
new file mode 100644
index 00000000000..1ec9a01abd0
--- /dev/null
+++ b/tests/wpt/metadata/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html.ini
@@ -0,0 +1,5 @@
+[redirect-http-upgrade-prefetch.optional.tentative.sub.html]
+  expected: TIMEOUT
+  [Http upgrade prefetch => No headers]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html.ini b/tests/wpt/metadata/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html.ini
new file mode 100644
index 00000000000..7ea8aff3cb9
--- /dev/null
+++ b/tests/wpt/metadata/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html.ini
@@ -0,0 +1,5 @@
+[redirect-https-downgrade-prefetch.optional.tentative.sub.html]
+  expected: TIMEOUT
+  [Https downgrade prefetch => No headers]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
index 87c807a49ff..b7052af5b5c 100644
--- a/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
+++ b/tests/wpt/metadata/fetch/nosniff/parsing-nosniff.window.js.ini
@@ -11,3 +11,6 @@
   [X-Content-Type-Options%3A%20nosniff%0C]
     expected: FAIL
 
+  [X-Content-Type-Options%3A%0D%0AX-Content-Type-Options%3A%20nosniff]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
new file mode 100644
index 00000000000..87b07c3e670
--- /dev/null
+++ b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_1.html.ini
@@ -0,0 +1,4 @@
+[traverse_the_history_1.html]
+  [Multiple history traversals from the same task]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini b/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
deleted file mode 100644
index 385376c7321..00000000000
--- a/tests/wpt/metadata/html/browsers/history/the-history-interface/traverse_the_history_4.html.ini
+++ /dev/null
@@ -1,4 +0,0 @@
-[traverse_the_history_4.html]
-  [Multiple history traversals, last would be aborted]
-    expected: FAIL
-
diff --git a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
index 16fa2c5cfc1..dec4c579137 100644
--- a/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
+++ b/tests/wpt/metadata/html/browsers/the-window-object/apis-for-creating-and-navigating-browsing-contexts-by-name/creating_browsing_context_test_01.html.ini
@@ -1,4 +1,5 @@
 [creating_browsing_context_test_01.html]
+  expected: TIMEOUT
   [first argument: absolute url]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
index 2532dceabac..442db3cb549 100644
--- a/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
+++ b/tests/wpt/metadata/html/browsers/windows/embedded-opener-remove-frame.html.ini
@@ -1,5 +1,4 @@
 [embedded-opener-remove-frame.html]
-  expected: CRASH
   [opener and "removed" embedded documents]
     expected: FAIL
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
index f42f518d257..fc37df7e3fa 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-1.html.ini
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_escaping-1.html]
   type: testharness
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
index f6a7aca3306..5f60c78e73c 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_escaping-3.html.ini
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_escaping-3.html]
   type: testharness
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe escape the sandbox if\n       allow-popups-to-escape-sandbox is used]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
index 3f7e3e9544f..9df1ac56f2a 100644
--- a/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-iframe-element/iframe_sandbox_popups_nonescaping-1.html.ini
@@ -1,5 +1,6 @@
 [iframe_sandbox_popups_nonescaping-1.html]
   type: testharness
+  expected: TIMEOUT
   [Check that popups from a sandboxed iframe do not escape the sandbox]
-    expected: FAIL
+    expected: NOTRUN
 
diff --git a/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
new file mode 100644
index 00000000000..b9d103f521e
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/embedded-content/the-img-element/non-active-document.html.ini
@@ -0,0 +1,4 @@
+[non-active-document.html]
+  [DOMParser]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/forms/constraints/infinite_backtracking.html.ini b/tests/wpt/metadata/html/semantics/forms/constraints/infinite_backtracking.html.ini
new file mode 100644
index 00000000000..fd73c8d647c
--- /dev/null
+++ b/tests/wpt/metadata/html/semantics/forms/constraints/infinite_backtracking.html.ini
@@ -0,0 +1,4 @@
+[infinite_backtracking.html]
+  [Infinite backtracking pattern terminates]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
index df89cd21511..941d0dee0c8 100644
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit-3.html.ini
@@ -1,5 +1,5 @@
 [form-double-submit-3.html]
   expected: ERROR
   [<button> should have the same double-submit protection as <input type=submit>]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
index dce74c6dd71..47a7bbb7975 100644
--- a/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
+++ b/tests/wpt/metadata/html/semantics/forms/form-submission-0/form-double-submit.html.ini
@@ -1,5 +1,5 @@
 [form-double-submit.html]
   expected: ERROR
   [default submit action should supersede onclick submit()]
-    expected: FAIL
+    expected: TIMEOUT
 
diff --git a/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini b/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini
new file mode 100644
index 00000000000..a9677391662
--- /dev/null
+++ b/tests/wpt/metadata/html/syntax/parsing/DOMContentLoaded-defer.html.ini
@@ -0,0 +1,4 @@
+[DOMContentLoaded-defer.html]
+  [The end: DOMContentLoaded and defer scripts]
+    expected: FAIL
+
diff --git a/tests/wpt/metadata/offscreen-canvas/the-offscreen-canvas/size.large.html.ini b/tests/wpt/metadata/offscreen-canvas/the-offscreen-canvas/size.large.html.ini
new file mode 100644
index 00000000000..68cde348264
--- /dev/null
+++ b/tests/wpt/metadata/offscreen-canvas/the-offscreen-canvas/size.large.html.ini
@@ -0,0 +1,2 @@
+[size.large.html]
+  expected: CRASH
diff --git a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini b/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/with-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini b/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
deleted file mode 100644
index 064cf47545b..00000000000
--- a/tests/wpt/metadata/webmessaging/without-ports/017.html.ini
+++ /dev/null
@@ -1,5 +0,0 @@
-[017.html]
-  expected: TIMEOUT
-  [origin of the script that invoked the method, about:blank]
-    expected: TIMEOUT
-
diff --git a/tests/wpt/metadata/webmessaging/without-ports/018.html.ini b/tests/wpt/metadata/webmessaging/without-ports/018.html.ini
new file mode 100644
index 00000000000..663a1f8fa30
--- /dev/null
+++ b/tests/wpt/metadata/webmessaging/without-ports/018.html.ini
@@ -0,0 +1,5 @@
+[018.html]
+  expected: TIMEOUT
+  [origin of the script that invoked the method, javascript:]
+    expected: TIMEOUT
+
diff --git a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini b/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
deleted file mode 100644
index 80f9a4f15b8..00000000000
--- a/tests/wpt/metadata/workers/constructors/Worker/Worker-constructor.html.ini
+++ /dev/null
@@ -1,2 +0,0 @@
-[Worker-constructor.html]
-  expected: ERROR
diff --git a/tests/wpt/web-platform-tests/.azure-pipelines.yml b/tests/wpt/web-platform-tests/.azure-pipelines.yml
index fa0dc670502..a534278337d 100644
--- a/tests/wpt/web-platform-tests/.azure-pipelines.yml
+++ b/tests/wpt/web-platform-tests/.azure-pipelines.yml
@@ -16,8 +16,13 @@
 #    https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/v2-windows
 
 trigger:
-- epochs/*
-- triggers/*
+# These are all the branches referenced in the jobs that follow.
+- epochs/daily
+- epochs/three_hourly
+- triggers/edge_dev
+- triggers/edge_canary
+- triggers/safari_stable
+- triggers/safari_preview
 
 jobs:
 # The affected tests jobs are unconditional for speed, as most PRs have one or
diff --git a/tests/wpt/web-platform-tests/.github/workflows/manifest.yml b/tests/wpt/web-platform-tests/.github/workflows/manifest.yml
index 555b9d6c290..e4708873c0d 100644
--- a/tests/wpt/web-platform-tests/.github/workflows/manifest.yml
+++ b/tests/wpt/web-platform-tests/.github/workflows/manifest.yml
@@ -8,6 +8,8 @@ on:
       - 'tools/**'
 jobs:
   build-and-tag:
+    # Do not run this job on forks.
+    if: github.repository == 'web-platform-tests/wpt'
     runs-on: ubuntu-18.04
     steps:
     - name: Checkout
diff --git a/tests/wpt/web-platform-tests/.taskcluster.yml b/tests/wpt/web-platform-tests/.taskcluster.yml
index 6bc9253ec20..cc07b1d6711 100644
--- a/tests/wpt/web-platform-tests/.taskcluster.yml
+++ b/tests/wpt/web-platform-tests/.taskcluster.yml
@@ -4,359 +4,66 @@ policy:
 tasks:
   $let:
     event_str: {$json: {$eval: event}}
-    provisionerId:
-      $if: 'taskcluster_root_url == "https://taskcluster.net"'
-      then: aws-provisioner-v1
-      else: proj-wpt
-    workerType:
-      $if: 'taskcluster_root_url == "https://taskcluster.net"'
+    scopes:
+      $if: 'tasks_for == "github-push"'
       then:
-        $if: event.repository.full_name == 'web-platform-tests/wpt'
+        $let:
+          branch:
+            $if: "event.ref[:11] == 'refs/heads/'"
+            then: "${event.ref[11:]}"
+            else: "${event.ref}"
+        in: "assume:repo:github.com/${event.repository.full_name}:branch:${branch}"
+      else: "assume:repo:github.com/${event.repository.full_name}:pull-request"
+    run_task:
+      $if: 'tasks_for == "github-push"'
+      then:
+        $if: 'event.ref in ["refs/heads/master", "refs/heads/epochs/daily", "refs/heads/epochs/weekly", "refs/heads/triggers/chrome_stable", "refs/heads/triggers/chrome_beta", "refs/heads/triggers/chrome_dev", "refs/heads/triggers/firefox_stable", "refs/heads/triggers/firefox_beta", "refs/heads/triggers/firefox_nightly", "refs/heads/triggers/webkitgtk_minibrowser_stable", "refs/heads/triggers/webkitgtk_minibrowser_nightly"]'
+        then: true
+        else: false
+      else:
+        $if: 'tasks_for == "github-pull-request"'
         then:
-          wpt-docker-worker
-        else:
-          github-worker
-      else: ci
+          $if: 'event.action in ["opened", "reopened", "synchronize", "ready_for_review"]  && !(event.pull_request.draft)'
+          then: true
+          else: false
+        else: false
+    rev:
+      $if: 'tasks_for == "github-pull-request"'
+      then: "refs/pull/${event.number}/merge"
+      else: "${event.after}"
   in:
-    $flattenDeep:
-      - $if: tasks_for == "github-push"
-        then:
-          $map:
-            $flatten:
-              $match: {
-                event.ref == "refs/heads/master": [{name: firefox, channel: nightly}, {name: chrome, channel: dev}],
-                event.ref == "refs/heads/epochs/daily": [{name: firefox, channel: stable}, {name: chrome, channel: stable}, {name: webkitgtk_minibrowser, channel: nightly}],
-                event.ref == "refs/heads/epochs/weekly": [{name: firefox, channel: beta}, {name: chrome, channel: beta}, {name: webkitgtk_minibrowser, channel: stable}],
-                event.ref == "refs/heads/triggers/chrome_stable": [{name: chrome, channel: stable}],
-                event.ref == "refs/heads/triggers/chrome_beta": [{name: chrome, channel: beta}],
-                event.ref == "refs/heads/triggers/chrome_dev": [{name: chrome, channel: dev}],
-                event.ref == "refs/heads/triggers/firefox_stable": [{name: firefox, channel: stable}],
-                event.ref == "refs/heads/triggers/firefox_beta": [{name: firefox, channel: beta}],
-                event.ref == "refs/heads/triggers/firefox_nightly": [{name: firefox, channel: nightly}],
-                event.ref == "refs/heads/triggers/webkitgtk_minibrowser_stable": [{name: webkitgtk_minibrowser, channel: stable}],
-                event.ref == "refs/heads/triggers/webkitgtk_minibrowser_nightly": [{name: webkitgtk_minibrowser, channel: nightly}]
-              }
-          each(browser):
-            $map:
-              - [testharness, 1, 16]
-              - [testharness, 2, 16]
-              - [testharness, 3, 16]
-              - [testharness, 4, 16]
-              - [testharness, 5, 16]
-              - [testharness, 6, 16]
-              - [testharness, 7, 16]
-              - [testharness, 8, 16]
-              - [testharness, 9, 16]
-              - [testharness, 10, 16]
-              - [testharness, 11, 16]
-              - [testharness, 12, 16]
-              - [testharness, 13, 16]
-              - [testharness, 14, 16]
-              - [testharness, 15, 16]
-              - [testharness, 16, 16]
-              - [reftest, 1, 5]
-              - [reftest, 2, 5]
-              - [reftest, 3, 5]
-              - [reftest, 4, 5]
-              - [reftest, 5, 5]
-              - [wdspec, 1, 1]
-            each(chunk):
-              taskId: {$eval: 'as_slugid(browser.name + browser.channel + chunk[0] + str(chunk[1]))'}
-              taskGroupId: {$eval: 'as_slugid("task group")'}
-              created: {$fromNow: ''}
-              deadline: {$fromNow: '24 hours'}
-              provisionerId: ${provisionerId}
-              workerType: ${workerType}
-              metadata:
-                name: wpt-${browser.name}-${browser.channel}-${chunk[0]}-${chunk[1]}
-                description: >-
-                  A subset of WPT's "${chunk[0]}" tests (chunk number ${chunk[1]}
-                  of ${chunk[2]}), run in the ${browser.channel} release of
-                  ${browser.name}.
-                owner:
-                  # event.pusher.email is null when it comes from a GitHub action, so it has to be null-checked,
-                  # and using the "in" operator causes an evaluation error when the right variable is null, if its
-                  # done on the same "if" statement than the null-check (with &&), therefore we use a nested "if" here.
-                  $if: 'event.pusher.email'
-                  then:
-                    $if: '"@" in event.pusher.email'
-                    then: ${event.pusher.email}
-                    else: web-platform-tests@users.noreply.github.com
-                  else: web-platform-tests@users.noreply.github.com
-                source: ${event.repository.url}
-              payload:
-                image:
-                    harjgam/web-platform-tests:0.33
-                maxRunTime: 7200
-                artifacts:
-                  public/results:
-                    path: /home/test/artifacts
-                    type: directory
-                command:
-                  - /bin/bash
-                  - --login
-                  - -c
-                  - set -ex;
-                    echo "wpt-${browser.name}-${browser.channel}-${chunk[0]}-${chunk[1]}";
-                    ~/start.sh
-                      ${event.repository.url}
-                      ${event.ref};
-                    cd ~/web-platform-tests;
-                    sudo cp tools/certs/cacert.pem
-                        /usr/local/share/ca-certificates/cacert.crt;
-                    sudo update-ca-certificates;
-                    ./tools/ci/run_tc.py
-                      --checkout=${event.after}
-                      --oom-killer
-                      --hosts
-                      --browser=${browser.name}
-                      --channel=${browser.channel}
-                      --xvfb
-                      run-all
-                      ./tools/ci/taskcluster-run.py
-                        ${browser.name}
-                        --
-                        --channel=${browser.channel}
-                        --log-wptreport=../artifacts/wpt_report.json
-                        --log-wptscreenshot=../artifacts/wpt_screenshot.txt
-                        --no-fail-on-unexpected
-                        --test-type=${chunk[0]}
-                        --this-chunk=${chunk[1]}
-                        --total-chunks=${chunk[2]};
-              extra:
-                github_event: "${event_str}"
+    - $if: run_task
+      then:
+        created: {$fromNow: ''}
+        deadline: {$fromNow: '24 hours'}
+        provisionerId: proj-wpt
+        workerType: ci
+        metadata:
+          name: "wpt-decision-task"
+          description: "The task that creates all of the other tasks in the task graph"
+          owner: "${event.sender.login}@users.noreply.github.com"
+          source: ${event.repository.clone_url}
+        payload:
+          image: harjgam/web-platform-tests:0.33
+          maxRunTime: 7200
+          artifacts:
+            public/results:
+              path: /home/test/artifacts
+              type: directory
+          command:
+            - /bin/bash
+            - --login
+            - -c
+            - set -ex;
+              ~/start.sh
+                ${event.repository.clone_url}
+                ${rev};
+              cd ~/web-platform-tests;
+              ./wpt tc-decision --tasks-path=/home/test/artifacts/tasks.json
+          features :
+            taskclusterProxy: true
+        scopes:
+          - ${scopes}
+        extra:
+          github_event: "${event_str}"
 
-      - $if: tasks_for == "github-pull-request"
-        # PR tasks that run the tests in various configurations
-        then:
-          # Taskcluster responds to a number of events issued by the GitHub API
-          # which should not trigger re-validation.
-          $if: event.action in ['opened', 'reopened', 'synchronize']
-          then:
-            $map: [{name: firefox, channel: nightly}, {name: chrome, channel: dev}]
-            each(browser):
-              $map:
-                # This is the main place to define new stability checks
-                - name: wpt-${browser.name}-${browser.channel}-stability
-                  job_name: stability
-                  checkout: task_head
-                  diff_base: base_head
-                  description: >-
-                    Verify that all tests affected by a pull request are stable
-                    when executed in ${browser.name}.
-                  extra_args: '--verify'
-                - name: wpt-${browser.name}-${browser.channel}-results
-                  job_name: affected_tests
-                  checkout: task_head
-                  diff_base: base_head
-                  description: >-
-                    Collect results for all tests affected by a pull request in
-                    ${browser.name}.
-                  extra_args: >-
-                    --no-fail-on-unexpected
-                    --log-wptreport=../artifacts/wpt_report.json
-                    --log-wptscreenshot=../artifacts/wpt_screenshot.txt
-                - name: wpt-${browser.name}-${browser.channel}-results-without-changes
-                  job_name: affected_tests
-                  checkout: base_head
-                  diff_base: task_head
-                  description: >-
-                    Collect results for all tests affected by a pull request in
-                    ${browser.name} but without the changes in the PR.
-                  extra_args: >-
-                    --no-fail-on-unexpected
-                    --log-wptreport=../artifacts/wpt_report.json
-                    --log-wptscreenshot=../artifacts/wpt_screenshot.txt
-              each(operation):
-                taskId: {$eval: 'as_slugid(operation.name)'}
-                taskGroupId: {$eval: 'as_slugid("task group")'}
-                created: {$fromNow: ''}
-                deadline: {$fromNow: '24 hours'}
-                provisionerId: ${provisionerId}
-                workerType: ${workerType}
-                metadata:
-                  name: ${operation.name}
-                  description: ${operation.description}
-                  owner: ${event.pull_request.user.login}@users.noreply.github.com
-                  source: ${event.repository.url}
-                payload:
-                  image: harjgam/web-platform-tests:0.33
-                  maxRunTime: 7200
-                  artifacts:
-                    public/results:
-                      path: /home/test/artifacts
-                      type: directory
-                  # Fetch the GitHub-provided merge commit (rather than the pull
-                  # request branch) so that the tasks simulate the behavior of the
-                  # submitted patch after it is merged. Using the merge commit also
-                  # simplifies detection of modified files because the first parent
-                  # of the merge commit can consistently be used to summarize the
-                  # changes.
-                  command:
-                    - /bin/bash
-                    - --login
-                    - -c
-                    - set -ex;
-                      echo "${operation.name}";
-                      ~/start.sh
-                        ${event.repository.clone_url}
-                        refs/pull/${event.number}/merge;
-                      cd web-platform-tests;
-                      ./tools/ci/run_tc.py
-                        --checkout=${operation.checkout}
-                        --oom-killer
-                        --browser=${browser.name}
-                        --channel=${browser.channel}
-                        --xvfb
-                        ${operation.job_name}
-                        ./tools/ci/taskcluster-run.py
-                          --commit-range ${operation.diff_base}
-                          ${browser.name}
-                          --
-                          --channel=${browser.channel}
-                          ${operation.extra_args};
-                extra:
-                  github_event: "${event_str}"
-
-      - $map:
-          # This is the main point to define new CI checks other than stability checks
-        - name: lint
-          description: >-
-            Lint for wpt-specific requirements
-          script: >-
-            ./tools/ci/run_tc.py \
-              --no-hosts \
-              lint \
-             ./wpt lint --all
-          conditions:
-            push
-            pull-request
-        - name: update built tests
-          description: >-
-            Ensure test suites that require a build step are updated
-          script: >-
-            ./tools/ci/run_tc.py \
-             --no-hosts \
-             update_built \
-             tools/ci/ci_built_diff.sh
-          conditions:
-            pull-request
-        - name: tools/ unittests (Python 2)
-          description: >-
-            Unit tests for tools running under Python 2.7, excluding wptrunner
-          script: >-
-            export TOXENV=py27;
-            export HYPOTHESIS_PROFILE=ci;
-            export PY_COLORS=0;
-            ./tools/ci/run_tc.py \
-              tools_unittest \
-              tools/ci/ci_tools_unittest.sh
-          conditions:
-            push
-            pull-request
-        - name: tools/ unittests (Python 3)
-          description: >-
-            Unit tests for tools running under Python 3, excluding wptrunner
-          script: >-
-            export TOXENV=py36;
-            export HYPOTHESIS_PROFILE=ci;
-            export PY_COLORS=0;
-            sudo apt update -qqy;
-            sudo apt install -qqy python3-pip;
-            ./tools/ci/run_tc.py \
-              tools_unittest \
-              tools/ci/ci_tools_unittest.sh
-          conditions:
-            push
-            pull-request
-        - name: tools/wpt/ tests
-          description: >-
-            Integration tests for wpt commands
-          script: >-
-            export TOXENV=py27;
-            sudo apt update -qqy;
-            sudo apt install -qqy libnss3-tools;
-            ./tools/ci/run_tc.py \
-              --oom-killer \
-              --browser=firefox \
-              --browser=chrome \
-              --channel=experimental \
-              --xvfb \
-              wpt_integration \
-              tools/ci/ci_wpt.sh
-          conditions:
-            pull-request
-        - name: resources/ tests
-          description: >-
-            Tests for testharness.js and other files in resources/
-          script: >-
-            export TOXENV=py27;
-            ./tools/ci/run_tc.py \
-              --browser=firefox \
-              --xvfb \
-              resources_unittest \
-              tools/ci/ci_resources_unittest.sh
-          conditions:
-            pull-request
-        - name: infrastructure/ tests
-          description: >-
-            Smoketests for wptrunner
-          script: >-
-            sudo apt update -qqy;
-            sudo apt install -qqy libnss3-tools libappindicator1 fonts-liberation;
-            ./tools/ci/run_tc.py \
-              --oom-killer \
-              --browser=firefox \
-              --browser=chrome \
-              --channel=experimental \
-              --no-hosts \
-              --xvfb \
-              wptrunner_infrastructure \
-              tools/ci/ci_wptrunner_infrastructure.sh
-          conditions:
-            pull-request
-        each(operation):
-          # Note: jsone doesn't short-circuit evaluation so all parts of the conditional are evaluated
-          # Accessing properties using the [] notation allows them to evaluate as null in case they're undefined
-          # TODO: Allow running pushes on branches other than master
-          - $if: ("push" in operation.conditions && tasks_for == "github-push" && event['ref'] == "refs/heads/master") || ("pull-request" in operation.conditions && tasks_for == "github-pull-request" && event['action'] in ['opened', 'reopened', 'synchronize'])
-            then:
-              $let:
-                checkout_ref:
-                  $if: tasks_for == "github-push"
-                  then:
-                    ${event.ref}
-                  else:
-                    refs/pull/${event.number}/merge
-              in:
-                taskId: {$eval: 'as_slugid(operation.name)'}
-                taskGroupId: {$eval: 'as_slugid("task group")'}
-                created: {$fromNow: ''}
-                deadline: {$fromNow: '24 hours'}
-                provisionerId: ${provisionerId}
-                workerType: ${workerType}
-                metadata:
-                  name: ${operation.name}
-                  description: ${operation.description}
-                  owner: ${event.sender.login}@users.noreply.github.com
-                  source: ${event.repository.url}
-                payload:
-                  image: harjgam/web-platform-tests:0.33
-                  maxRunTime: 7200
-                  artifacts:
-                    public/results:
-                      path: /home/test/artifacts
-                      type: directory
-                  command:
-                    - /bin/bash
-                    - --login
-                    - -c
-                    - set -ex;
-                      echo "${operation.name}";
-                      ~/start.sh
-                        ${event.repository.clone_url}
-                        ${checkout_ref};
-                      cd ~/web-platform-tests;
-                      ${operation.script};
-                extra:
-                  github_event: "${event_str}"
diff --git a/tests/wpt/web-platform-tests/client-hints/accept_ch.tentative.https.html b/tests/wpt/web-platform-tests/client-hints/accept_ch.tentative.https.html
index 4b46610c581..0f8b525576e 100644
--- a/tests/wpt/web-platform-tests/client-hints/accept_ch.tentative.https.html
+++ b/tests/wpt/web-platform-tests/client-hints/accept_ch.tentative.https.html
@@ -12,16 +12,14 @@ in this web page, and two in the other web pages.
 <script>
 
 // This test fetches resources/accept_ch.html. The response headers to
-// that webpage contains only the Accept-CH header. Due to the missing
-// Accept-CH-Lifetime header, the user-agent should not persist origin
-// preferences for the client hints specified in Accept-CH header.
+// that webpage contains only the Accept-CH header. These preferences should be
+// stored so that the next request to the same origin is sent with the
+// requested client hint headers.
 
-// Next, to verify that the origin preferences were not persisted by the user
-// agent, this test fetches resources/do_not_expect_client_hints_headers.html
-// in a new window. Fetching of
-// resources/do_not_expect_client_hints_headers.html
-// verifies that the user agent does not send the client hints in the request
-// headers.
+// Next, to verify that the origin preferences were persisted by the user
+// agent, this test fetches resources/expect_client_hints_headers.html in a new
+// window. Fetching of resources/expect_client_hints_headers.html verifies that
+// the user agent does send the client hints in the request headers.
 
 // Test is marked as tentative until https://github.com/whatwg/fetch/issues/726
 // is resolved.
@@ -39,7 +37,7 @@ promise_test(t => {
 
 async_test(t => {
   window.addEventListener('message', t.step_func(function(e) {
-    if(!e.source.location.pathname.includes("do_not_expect_client_hints_headers.html")) {
+    if(!e.source.location.pathname.includes("expect_client_hints_headers.html")) {
       return;
     }
     if(typeof e.data != "string")
@@ -47,12 +45,12 @@ async_test(t => {
     assert_equals(e.data, "PASS");
     t.done();
   }));
-}, "Loading of resources/do_not_expect_client_hints_headers.html did not finish.");
+}, "Loading of resources/expect_client_hints_headers.html did not finish.");
 
 function acceptChLoaded() {
   // Open a new window. Verify that the user agent does not attach the client
   // hints.
-  var verify_win = window.open("resources/do_not_expect_client_hints_headers.html");
+  var verify_win = window.open("resources/expect_client_hints_headers.html");
   assert_not_equals(verify_win, null, "Popup windows not allowed?");
 }
 
diff --git a/tests/wpt/web-platform-tests/client-hints/http_equiv_accept_ch.tentative.https.html b/tests/wpt/web-platform-tests/client-hints/http_equiv_accept_ch.tentative.https.html
index 74eea344e90..2830cb714fa 100644
--- a/tests/wpt/web-platform-tests/client-hints/http_equiv_accept_ch.tentative.https.html
+++ b/tests/wpt/web-platform-tests/client-hints/http_equiv_accept_ch.tentative.https.html
@@ -12,16 +12,15 @@
 
 <script>
 
-// This test contains accept-ch http-equiv header. Due to the missing
-// Accept-CH-Lifetime header, the user-agent should not persist origin
-// preferences for the client hints specified in Accept-CH header.
+// This test contains accept-ch http-equiv header. The user-agent should
+// persist origin preferences for the client hints specified in Accept-CH
+// header.
 
-// Next, to verify that the origin preferences were not persisted by the user
+// Next, to verify that the origin preferences were persisted by the user
 // agent, this test fetches resources/do_not_expect_client_hints_headers.html
 // in a new window. Fetching of
-// resources/do_not_expect_client_hints_headers.html
-// verifies that the user agent does not send the client hints in the request
-// headers.
+// resources/do_not_expect_client_hints_headers.html verifies that the user
+// agent does not send the client hints in the request headers.
 
 // Test is marked as tentative until https://github.com/whatwg/fetch/issues/726
 // is resolved.
@@ -37,12 +36,12 @@ promise_test(t => {
 // Verify that the browser does not attach client hints on resources in a
 // different navigation. This verifies that the client hint preferences were
 // not persisted for the origin.
-window.open("resources/do_not_expect_client_hints_headers.html");
+window.open("resources/expect_client_hints_headers.html");
 async_test(t => {
   window.addEventListener('message', t.step_func_done(e => {
     assert_equals(e.data, 'PASS');
   }));
-}, "Loading of resources/do_not_expect_client_hints_headers.html did not finish.");
+}, "Loading of resources/expect_client_hints_headers.html did not finish.");
 
 </script>
 </body>
diff --git a/tests/wpt/web-platform-tests/compression/decompression-corrupt-input.any.js b/tests/wpt/web-platform-tests/compression/decompression-corrupt-input.tentative.any.js
similarity index 100%
rename from tests/wpt/web-platform-tests/compression/decompression-corrupt-input.any.js
rename to tests/wpt/web-platform-tests/compression/decompression-corrupt-input.tentative.any.js
diff --git a/tests/wpt/web-platform-tests/conformance-checkers/messages.json b/tests/wpt/web-platform-tests/conformance-checkers/messages.json
index 94d3bc461f5..2dcd3830d72 100644
--- a/tests/wpt/web-platform-tests/conformance-checkers/messages.json
+++ b/tests/wpt/web-platform-tests/conformance-checkers/messages.json
@@ -2187,7 +2187,7 @@
     "html/media-queries/011-novalid.html": "Bad value \u201cscreen and (min-width: 400dpi)\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: \u201c400dpi\u201d is not a \u201cwidth\u201d value",
     "html/media-queries/013-novalid.html": "Bad value \u201cscreen and (min-width:\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Parse Error.",
     "html/media-queries/014-novalid.html": "Bad value \u201cscreen and (min-width: 400px) and\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Parse Error.",
-    "html/media-queries/019-novalid.html": "Bad value \u201cscreen and (color: 1em)\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Too many values or values are not recognized",
+    "html/media-queries/019-novalid.html": "Bad value \u201cscreen and (color: 1em)\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: \u201c1em\u201d is not a \u201ccolor\u201d value",
     "html/media-queries/020-novalid.html": "Bad value \u201c,\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Parse Error.",
     "html/media-queries/021-novalid.html": "Bad value \u201cscreen,,print\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Parse Error.",
     "html/media-queries/022-novalid.html": "Bad value \u201cscreen,\u201d for attribute \u201cmedia\u201d on element \u201clink\u201d: Bad media query: Parse Error.",
diff --git a/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr-ref.html b/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr-ref.html
new file mode 100644
index 00000000000..baa25ac87c8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr-ref.html
@@ -0,0 +1,12 @@
+<html>
+  <head>
+    <title>Content-DPR: pseudo elements</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+    <meta name="assert" content="Assert that content-dpr is taken into account for images in pseudo-elements">
+  </head>
+  <body>
+    The following squares should be identical <br />
+    <img src="resources/square.png" width="50" />
+    <img src="resources/square.png" width="50" />
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr.html b/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr.html
new file mode 100644
index 00000000000..7770df39997
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/image-pseudo-element-content-dpr.html
@@ -0,0 +1,17 @@
+<html>
+  <head>
+    <title>Content-DPR: pseudo elements</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+    <link rel="match" href="image-pseudo-element-content-dpr-ref.html" />
+    <meta name="assert" content="Assert that content-dpr is taken into account for images in pseudo-elements">
+    <style>
+      body::after {
+        content: url(resources/dpr.py?name=square.png&mimeType=image/png&dpr=2);
+      }
+    </style>
+  </head>
+  <body>
+    The following squares should be identical <br />
+    <img src="resources/square.png" width="50" />
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions-ref.html b/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions-ref.html
new file mode 100644
index 00000000000..27ce1be8b0d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions-ref.html
@@ -0,0 +1,10 @@
+<html>
+  <head>
+    <title>Content-DPR: render natural size</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+  </head>
+  <body>
+    <img src="resources/square.png" style="width: 100px; height: 120px" />
+    <img src="resources/square.png" style="width: 100px; height: 120px" />
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions.html b/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions.html
new file mode 100644
index 00000000000..783fb03a3b0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/image-with-content-dpr-and-explicit-dimensions.html
@@ -0,0 +1,12 @@
+<html>
+  <head>
+    <title>Content-DPR: with size attributes</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+    <link rel="match" href="image-with-content-dpr-and-explicit-dimensions-ref.html" />
+    <meta name="assert" content="Assert explicit width/height attributes to supercede content-dpr">
+  </head>
+  <body>
+    <img src="resources/dpr.py?name=square.png&mimeType=image/png&dpr=4.0" width="100px" height="120px" />
+    <img src="resources/dpr.py?name=square.png&mimeType=image/png&dpr=4.0" style="width: 100px; height: 120px;" />
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/client-hints/image-with-dpr-header.html b/tests/wpt/web-platform-tests/content-dpr/image-with-dpr-header.html
similarity index 100%
rename from tests/wpt/web-platform-tests/client-hints/image-with-dpr-header.html
rename to tests/wpt/web-platform-tests/content-dpr/image-with-dpr-header.html
diff --git a/tests/wpt/web-platform-tests/content-dpr/resources/background.png b/tests/wpt/web-platform-tests/content-dpr/resources/background.png
new file mode 100644
index 0000000000000000000000000000000000000000..6db6c6b1b9d851c7a85b93ddc9e5ddf368ac0a7e
GIT binary patch
literal 86
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literal 0
HcmV?d00001

diff --git a/tests/wpt/web-platform-tests/client-hints/resources/dpr.py b/tests/wpt/web-platform-tests/content-dpr/resources/dpr.py
similarity index 100%
rename from tests/wpt/web-platform-tests/client-hints/resources/dpr.py
rename to tests/wpt/web-platform-tests/content-dpr/resources/dpr.py
diff --git a/tests/wpt/web-platform-tests/content-dpr/resources/square.png b/tests/wpt/web-platform-tests/content-dpr/resources/square.png
new file mode 100644
index 0000000000000000000000000000000000000000..01c9666a8de9d5535615aff830810e5df4b2156f
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literal 0
HcmV?d00001

diff --git a/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr-ref.html b/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr-ref.html
new file mode 100644
index 00000000000..58cbeb436fc
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr-ref.html
@@ -0,0 +1,29 @@
+<html>
+  <head>
+    <title>Content-DPR: css tiled background</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+    <meta name="assert" content="Assert that content-dpr is taken into account for tiled background images">
+    <style>
+      #bg, #bg2 {
+        background-image: url(resources/background.png);
+        width: 32px;
+        height: 32px;
+      }
+      #bg {
+        background-size: 16px 16px;
+      }
+
+      #bg2 {
+        background-size: 8px 8px;
+      }
+    </style>
+  </head>
+  <body>
+  The next div should have 16 boxes
+    <div id="bg">
+    </div>
+  The next div should have 64 boxes
+    <div id="bg2">
+    </div>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr.html b/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr.html
new file mode 100644
index 00000000000..94f2f72d401
--- /dev/null
+++ b/tests/wpt/web-platform-tests/content-dpr/tiled-background-image-with-content-dpr.html
@@ -0,0 +1,27 @@
+<html>
+  <head>
+    <title>Content-DPR: css tiled background</title>
+    <link rel="author" title="Noam Rosenthal" href="noam@webkit.org">
+    <link rel="match" href="tiled-background-image-with-content-dpr-ref.html" />
+    <meta name="assert" content="Assert that content-dpr is taken into account for tiled background images">
+    <style>
+      #bg, #bg2 {
+        width: 32px;
+        height: 32px;
+        background-image: url(resources/dpr.py?name=background.png&mimeType=image/png&dpr=2.0);
+      }
+
+      #bg2 {
+        background-size: 8px 8px;
+      }
+    </style>
+  </head>
+  <body>
+  The next div should have 16 boxes
+    <div id="bg">
+    </div>
+  The next div should have 64 boxes
+    <div id="bg2">
+    </div>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/cookie-store/cookieStore_subscriptions_empty.tentative.https.window.js b/tests/wpt/web-platform-tests/cookie-store/cookieStore_subscriptions_empty.tentative.https.window.js
new file mode 100644
index 00000000000..907a34b4de6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookie-store/cookieStore_subscriptions_empty.tentative.https.window.js
@@ -0,0 +1,13 @@
+// META: script=/service-workers/service-worker/resources/test-helpers.sub.js
+
+'use strict';
+
+promise_test(async testCase => {
+  const registration = await service_worker_unregister_and_register(
+      testCase, 'resources/empty_sw.js', 'resources/does/not/exist');
+  testCase.add_cleanup(() => registration.unregister());
+  await wait_for_state(testCase, registration.installing, 'activated');
+
+  const subscriptions = await registration.cookies.getSubscriptions();
+  assert_equals(0, subscriptions.length);
+}, 'Newly registered and activated service worker has no subscriptions');
diff --git a/tests/wpt/web-platform-tests/cookie-store/resources/always_changing_sw.sub.js b/tests/wpt/web-platform-tests/cookie-store/resources/always_changing_sw.sub.js
new file mode 100644
index 00000000000..9fdf99848fa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/cookie-store/resources/always_changing_sw.sub.js
@@ -0,0 +1,6 @@
+// This script changes every time it is fetched.
+
+// When used as a service worker script, this causes the Service Worker to be
+// updated on every ServiceWorkerRegistration.update() call.
+
+// The following bytes change on every fetch: {{uuid()}}
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.js
index 41cbed01a5b..107bb957612 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.js
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions.js
@@ -4,26 +4,6 @@ self.GLOBAL = {
 };
 importScripts("/resources/testharness.js");
 
-self.addEventListener('install', (event) => {
-  event.waitUntil((async () => {
-    // The subscribeToChanges calls are not done in parallel on purpose. Having
-    // multiple in-flight requests introduces failure modes aside from the
-    // cookie change logic that this test aims to cover.
-    try {
-      await cookieStore.subscribeToChanges([
-        { name: 'cookie-name1', matchType: 'equals', url: '/cookie-store/path1' }]);
-      await cookieStore.subscribeToChanges([
-        { },  // Test the default values for subscription properties.
-        { name: 'cookie-prefix', matchType: 'starts-with' },
-      ]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
 // Resolves when the service worker receives the 'activate' event.
 const kServiceWorkerActivatedPromise = new Promise(resolve => {
   self.addEventListener('activate', event => { resolve(); });
@@ -41,7 +21,23 @@ function CompareStrings(a, b) {
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
-  const subscriptions = await cookieStore.getChangeSubscriptions();
+  {
+    const subscriptions = [
+      { name: 'cookie-name1', matchType: 'equals', url: '/cookie-store/path1' },
+    ];
+    await registration.cookies.subscribe(subscriptions);
+    testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+  }
+  {
+    const subscriptions = [
+      { },  // Test the default values for subscription properties.
+      { name: 'cookie-prefix', matchType: 'starts-with' },
+    ];
+    await registration.cookies.subscribe(subscriptions);
+    testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+  }
+
+  const subscriptions = await registration.cookies.getSubscriptions();
   assert_equals(subscriptions.length, 3);
 
   subscriptions.sort((a, b) => CompareStrings(`${a.name}`, `${b.name}`));
@@ -54,20 +50,13 @@ promise_test(async testCase => {
 
   assert_false('name' in subscriptions[2]);
   assert_equals('starts-with', subscriptions[2].matchType);
-}, 'getChangeSubscriptions returns subscriptions passed to subscribeToChanges');
-
-promise_test(async testCase => {
-  promise_rejects(
-      testCase, new TypeError(),
-      cookieStore.subscribeToChanges([{ name: 'cookie-name2' }]));
-}, 'subscribeToChanges rejects when called outside the install handler');
-
+}, 'getSubscriptions returns subscriptions passed to subscribe');
 
 // Accumulates cookiechange events dispatched to the service worker.
 let g_cookie_changes = [];
 
 // Resolved when a cookiechange event is received. Rearmed by
-// ResetCookieChangeReceivedPromise().
+// RearmCookieChangeReceivedPromise().
 let g_cookie_change_received_promise = null;
 let g_cookie_change_received_promise_resolver = null;
 self.addEventListener('cookiechange', (event) => {
@@ -85,6 +74,22 @@ RearmCookieChangeReceivedPromise();
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
+  {
+    const subscriptions = [
+      { name: 'cookie-name1', matchType: 'equals', url: '/cookie-store/path1' },
+    ];
+    await registration.cookies.subscribe(subscriptions);
+    testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+  }
+  {
+    const subscriptions = [
+      { },  // Test the default values for subscription properties.
+      { name: 'cookie-prefix', matchType: 'starts-with' },
+    ];
+    await registration.cookies.subscribe(subscriptions);
+    testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+  }
+
   await cookieStore.set('cookie-name', 'cookie-value');
   testCase.add_cleanup(async () => {
     await cookieStore.delete('cookie-name');
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.js
index 293969e5b8f..a96eeeb116d 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.js
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_basic.js
@@ -4,20 +4,6 @@ self.GLOBAL = {
 };
 importScripts("/resources/testharness.js");
 
-self.addEventListener('install', (event) => {
-  event.waitUntil((async () => {
-    try {
-      await cookieStore.subscribeToChanges([
-        { name: 'cookie-name', matchType: 'equals',
-          url: '/cookie-store/scope/path' }]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
 // Resolves when the service worker receives the 'activate' event.
 const kServiceWorkerActivatedPromise = new Promise(resolve => {
   self.addEventListener('activate', event => { resolve(); });
@@ -26,29 +12,42 @@ const kServiceWorkerActivatedPromise = new Promise(resolve => {
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
-  const subscriptions = await cookieStore.getChangeSubscriptions();
+  {
+    const subscriptions = [
+      { name: 'cookie-name', matchType: 'equals',
+        url: '/cookie-store/scope/path' }];
+    await registration.cookies.subscribe(subscriptions);
+    testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+  }
+
+  const subscriptions = await registration.cookies.getSubscriptions();
   assert_equals(subscriptions.length, 1);
 
   assert_equals(subscriptions[0].name, 'cookie-name');
-  assert_equals('equals', subscriptions[0].matchType);
-}, 'getChangeSubscriptions returns a subscription passed to subscribeToChanges');
+  assert_equals(subscriptions[0].matchType, 'equals');
+  assert_equals(subscriptions[0].url,
+                (new URL("/cookie-store/scope/path", self.location.href)).href);
+}, 'getSubscriptions returns a subscription passed to subscribe');
 
+const kCookieChangeReceivedPromise = new Promise((resolve) => {
+  self.addEventListener('cookiechange', event => { resolve(event); });
+});
 
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
-  const cookie_change_received_promise = new Promise((resolve) => {
-    self.addEventListener('cookiechange', (event) => {
-      resolve(event);
-    });
-  });
+  const subscriptions = [
+    { name: 'cookie-name', matchType: 'equals',
+      url: '/cookie-store/scope/path' }];
+  await registration.cookies.subscribe(subscriptions);
+  testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
 
   await cookieStore.set('cookie-name', 'cookie-value');
   testCase.add_cleanup(async () => {
     await cookieStore.delete('cookie-name');
   });
 
-  const event = await cookie_change_received_promise;
+  const event = await kCookieChangeReceivedPromise;
   assert_equals(event.type, 'cookiechange');
   assert_equals(event.changed.length, 1);
   assert_equals(event.changed[0].name, 'cookie-name');
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.js
index b6231869974..7df77730553 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.js
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_empty.js
@@ -4,18 +4,6 @@ self.GLOBAL = {
 };
 importScripts("/resources/testharness.js");
 
-self.addEventListener('install', (event) => {
-  event.waitUntil((async () => {
-    try {
-      await cookieStore.subscribeToChanges([]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
 // Resolves when the service worker receives the 'activate' event.
 const kServiceWorkerActivatedPromise = new Promise(resolve => {
   self.addEventListener('activate', event => { resolve(); });
@@ -24,9 +12,9 @@ const kServiceWorkerActivatedPromise = new Promise(resolve => {
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
-  const subscriptions = await cookieStore.getChangeSubscriptions();
+  const subscriptions = await registration.cookies.getSubscriptions();
   assert_equals(subscriptions.length, 0);
 
-}, 'getChangeSubscriptions returns an empty array when there are no subscriptions');
+}, 'getSubscriptions returns an empty array when there are no subscriptions');
 
 done();
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js
index 258441921bf..ed0cdcfcfca 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_eventhandler_attribute.js
@@ -4,20 +4,6 @@ self.GLOBAL = {
 };
 importScripts("/resources/testharness.js");
 
-self.addEventListener('install', (event) => {
-  event.waitUntil((async () => {
-    try {
-      await cookieStore.subscribeToChanges([
-        { name: 'cookie-name', matchType: 'equals',
-          url: '/cookie-store/scope/path' }]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
 // Resolves when the service worker receives the 'activate' event.
 const kServiceWorkerActivatedPromise = new Promise((resolve) => {
   self.addEventListener('activate', event => { resolve(); });
@@ -32,6 +18,12 @@ const kCookieChangeReceivedPromise = new Promise((resolve) => {
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
+  const subscriptions = [
+    { name: 'cookie-name', matchType: 'equals',
+      url: '/cookie-store/scope/path' }];
+  await registration.cookies.subscribe(subscriptions);
+  testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+
   await cookieStore.set('cookie-name', 'cookie-value');
   testCase.add_cleanup(async () => {
     await cookieStore.delete('cookie-name');
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js
index bd37b9be1ee..5414a664db6 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_mismatch.js
@@ -4,20 +4,6 @@ self.GLOBAL = {
 };
 importScripts("/resources/testharness.js");
 
-self.addEventListener('install', (event) => {
-  event.waitUntil((async () => {
-    try {
-      await cookieStore.subscribeToChanges([
-        { name: 'cookie-name', matchType: 'equals',
-          url: '/cookie-store/scope/path' }]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
 // Resolves when the service worker receives the 'activate' event.
 const kServiceWorkerActivatedPromise = new Promise((resolve) => {
   self.addEventListener('activate', event => { resolve(); });
@@ -32,6 +18,12 @@ const kCookieChangeReceivedPromise = new Promise((resolve) => {
 promise_test(async testCase => {
   await kServiceWorkerActivatedPromise;
 
+  const subscriptions = [
+    { name: 'cookie-name', matchType: 'equals',
+      url: '/cookie-store/scope/path' }];
+  await registration.cookies.subscribe(subscriptions);
+  testCase.add_cleanup(() => registration.cookies.unsubscribe(subscriptions));
+
   await cookieStore.set('another-cookie-name', 'cookie-value');
   testCase.add_cleanup(async () => {
     await cookieStore.delete('another-cookie-name');
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js
deleted file mode 100644
index 7fc8eabc570..00000000000
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.sub.js
+++ /dev/null
@@ -1,24 +0,0 @@
-self.GLOBAL = {
-  isWindow: function() { return false; },
-  isWorker: function() { return true; },
-};
-importScripts("/resources/testharness.js");
-
-self.addEventListener('install', event => {
-  event.waitUntil((async () => {
-    try {
-      await cookieStore.subscribeToChanges([
-        { name: 'cookie-name', matchType: 'equals',
-        url: '/cookie-store/scope/path' }]);
-
-      // If the worker enters the "redundant" state, the UA may terminate it
-      // before all tests have been reported to the client. Stifle errors in
-      // order to avoid this and ensure all tests are consistently reported.
-    } catch (err) {}
-  })());
-});
-
-self.addEventListener('message', async event => {
-  const subscriptions = await cookieStore.getChangeSubscriptions();
-  event.ports[0].postMessage(subscriptions.length);
-});
\ No newline at end of file
diff --git a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html
index a0923548c78..4e157840e98 100644
--- a/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html
+++ b/tests/wpt/web-platform-tests/cookie-store/serviceworker_cookieStore_subscriptions_reset.tentative.https.html
@@ -8,30 +8,48 @@
 </script>
 <script src='resources/helpers.js'></script>
 <script>
-const worker_url = 'serviceworker_cookieStore_subscriptions_reset.sub.js';
-const scope = '/cookie-store/';
-
-async function getSubscriptionCount(serviceWorker) {
-  return sendMessageOverChannel('', serviceWorker);
-}
+'use strict';
 
 promise_test(async t => {
   const registration = await service_worker_unregister_and_register(
-      t, worker_url, scope);
+      t, 'resources/empty_sw.js', 'resources/does/not/exist');
   t.add_cleanup(() => registration.unregister());
   await wait_for_state(t, registration.installing, 'activated');
-  assert_equals(await getSubscriptionCount(registration.active), 1,
+  await registration.cookies.subscribe(
+      [{ name: 'cookie-name', matchType: 'equals' }]);
+  const original_subscriptions = await registration.cookies.getSubscriptions();
+  assert_equals(original_subscriptions.length, 1,
                 'subscription count before unregistration');
 
   await registration.unregister();
 
   const new_registration = await navigator.serviceWorker.register(
-      worker_url, { scope });
+    'resources/empty_sw.js', { scope: 'resources/does/not/exist' });
   t.add_cleanup(() => new_registration.unregister());
   await wait_for_state(t, new_registration.installing, 'activated');
 
-  assert_equals(await getSubscriptionCount(new_registration.active), 1,
+  const new_subscriptions = await new_registration.cookies.getSubscriptions();
+  assert_equals(new_subscriptions.length, 0,
                 'subscription count after unregistration');
-}, `cookiechange subscription list resets across service worker
-    unregistrations`);
+}, 'cookiechange subscriptions reset across service worker unregistrations');
+
+promise_test(async t => {
+  const registration = await service_worker_unregister_and_register(
+      t, 'resources/always_changing_sw.sub.js', 'resources/does/not/exist');
+  t.add_cleanup(() => registration.unregister());
+  await wait_for_state(t, registration.installing, 'activated');
+  await registration.cookies.subscribe(
+      [{ name: 'cookie-name', matchType: 'equals' }]);
+  const original_subscriptions = await registration.cookies.getSubscriptions();
+  assert_equals(original_subscriptions.length, 1,
+                'subscription count before update');
+
+  await registration.update();
+  const worker = await wait_for_update(t, registration);
+  await wait_for_state(t, worker, 'activated');
+
+  const update_subscriptions = await registration.cookies.getSubscriptions();
+  assert_equals(update_subscriptions.length, 1,
+                'subscription count after update');
+}, 'cookiechange subscriptions persist across service worker updates');
 </script>
diff --git a/tests/wpt/web-platform-tests/css/CSS2/linebox/inline-negative-margin-minmax-crash-001.html b/tests/wpt/web-platform-tests/css/CSS2/linebox/inline-negative-margin-minmax-crash-001.html
new file mode 100644
index 00000000000..d6480edd621
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/CSS2/linebox/inline-negative-margin-minmax-crash-001.html
@@ -0,0 +1,19 @@
+<!DOCTYPE html>
+<title>CSS Test: Check inline negative margin with fit-content should not cause hang</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<link rel="help" href="https://crbug.com/1028817">
+<link rel="help" href="https://drafts.csswg.org/css2/visudet.html#inline-width">
+<link rel="author" title="Koji Ishii" href="mailto:kojii@chromium.org">
+<style>
+div {
+  width: fit-content;
+}
+span {
+  margin-left: -15px;
+}
+</style>
+<body>
+  <div>| <span>Operation</span></div>
+<script>test(() => {});</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-image-interpolation.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-image-interpolation.html
index b442c4e9120..feda6afebed 100644
--- a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-image-interpolation.html
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/background-image-interpolation.html
@@ -38,19 +38,26 @@ test_interpolation({
 }, [
   {at: -0.3, expect: from},
   {at: 0, expect: from},
-  {at: 0.3, expect: 'cross-fade(' + from + ', ' + to + ', 0.3)'},
-  {at: 0.6, expect: 'cross-fade(' + from + ', ' + to + ', 0.6)'},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
   {at: 1, expect: to},
   {at: 1.5, expect: to},
 ]);
 
 // initial to image
 to = 'url(../resources/green-100.png)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: 'initial',
   to: to,
-});
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // inherit to image
 from = 'url(../resources/blue-100.png)';
@@ -62,18 +69,25 @@ test_interpolation({
 }, [
   {at: -0.3, expect: from},
   {at: 0, expect: from},
-  {at: 0.3, expect: 'cross-fade(' + from + ', ' + to + ', 0.3)'},
-  {at: 0.6, expect: 'cross-fade(' + from + ', ' + to + ', 0.6)'},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
   {at: 1, expect: to},
   {at: 1.5, expect: to},
 ]);
 
 // unset to image
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: 'unset',
   to: to,
-});
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // Image to image
 from = 'url(../resources/blue-100.png)';
@@ -85,8 +99,8 @@ test_interpolation({
 }, [
   {at: -0.3, expect: from},
   {at: 0, expect: from},
-  {at: 0.3, expect: 'cross-fade(' + from + ', ' + to + ', 0.3)'},
-  {at: 0.6, expect: 'cross-fade(' + from + ', ' + to + ', 0.6)'},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
   {at: 1, expect: to},
   {at: 1.5, expect: to},
 ]);
@@ -94,38 +108,66 @@ test_interpolation({
 // Image to gradient
 from = 'url(../resources/blue-100.png)';
 to = 'linear-gradient(45deg, blue, orange)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: from,
   to: to,
-});
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // Image to crossfade
 from = 'url(../resources/blue-100.png)';
 to = 'cross-fade(url(../resources/green-100.png), url(../resources/stripes-100.png), 0.5)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: from,
   to: to,
-});
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // Gradient to gradient
 from = 'linear-gradient(-45deg, red, yellow)';
 to = 'linear-gradient(45deg, blue, orange)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: from,
   to: to,
-});
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // Keyword to image
 from = 'none';
 to = 'url(../resources/green-100.png)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: from,
   to: to,
-});
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 
 // Multiple to multiple
 var fromA = 'url(../resources/stripes-100.png)';
@@ -141,8 +183,8 @@ test_interpolation({
 }, [
   {at: -0.3, expect: from},
   {at: 0, expect: from},
-  {at: 0.3, expect: 'cross-fade(' + fromA + ', ' + toA + ', 0.3), cross-fade(' + fromB + ', ' + toB + ', 0.3)'},
-  {at: 0.6, expect: 'cross-fade(' + fromA + ', ' + toA + ', 0.6), cross-fade(' + fromB + ', ' + toB + ', 0.6)'},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
   {at: 1, expect: to},
   {at: 1.5, expect: to},
 ]);
@@ -161,10 +203,10 @@ test_interpolation({
   // Animating background-image is not specified to be possible however we do it for backwards compatibility.
   // With this in mind we kept the implementation simple at the expense of this corner case because there is
   // no official specification to support.
-  {at: -0.3, expect: from + ', ' + from},
+  {at: -0.3, expect: from},
   {at: 0, expect: from},
-  {at: 0.3, expect: 'cross-fade(' + from + ', ' + toA + ', 0.3), cross-fade(' + from + ', ' + toB + ', 0.3)'},
-  {at: 0.6, expect: 'cross-fade(' + from + ', ' + toA + ', 0.6), cross-fade(' + from + ', ' + toB + ', 0.6)'},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
   {at: 1, expect: to},
   {at: 1.5, expect: to},
 ]);
@@ -172,10 +214,17 @@ test_interpolation({
 // Multiple mismatched types
 from = 'url(../resources/blue-100.png), none';
 to = 'url(../resources/stripes-100.png), url(../resources/green-100.png)';
-test_no_interpolation({
+test_interpolation({
   property: 'background-image',
   from: from,
   to: to,
-});
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
 </script>
 </body>
diff --git a/tests/wpt/web-platform-tests/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html
new file mode 100644
index 00000000000..26431334e4a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-backgrounds/animations/border-image-slice-interpolation-stability.html
@@ -0,0 +1,24 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>border-image-slice interpolation stability</title>
+<link rel="help" href="https://drafts.csswg.org/css-backgrounds-3/#border-image-slice">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+
+<div id="target"></div>
+<script>
+test(function() {
+  var player = target.animate([
+    {borderImageSlice: '50'},
+    {borderImageSlice: '50'},
+  ], {
+    duration: 1,
+    fill: 'forwards',
+    easing: 'cubic-bezier(0, 1.5, 1, 1.5)',
+  });
+  player.pause();
+  player.currentTime = 0.6345195996109396
+  assert_equals(getComputedStyle(target).borderImageSlice, '50');
+});
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-break/fieldset-001-ref.html b/tests/wpt/web-platform-tests/css/css-break/fieldset-001-ref.html
new file mode 100644
index 00000000000..1422086da71
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-break/fieldset-001-ref.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<html><head>
+<title>Reference: fragmenting a fieldset in multicol layout</title>
+<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<style>
+  * {
+    color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+  }
+  body { width:600px; height:600px; }
+
+  .cols { columns:3; background:grey; margin-bottom: 10px; height:80px; column-fill:auto; }
+  .c2 { column-count:2; height:120px; }
+  legend { background:black; width:100px; height:19px; }
+  p {
+    position: relative;
+    border: solid;
+    border-width: 6px 3px 10px 7px;
+    margin: 3px 10px 7px 5px;
+    background-color: lightgrey;
+  }
+  p, legend {
+    background-clip: content-box;
+    padding: 10px 7px 20px 3px;
+  }
+  p { margin-top: 25px; }
+  legend {
+    position: absolute;
+    padding: 0;
+    border: 0 solid grey;
+    border-left-width: 3px;
+    border-right-width: 7px;
+    top: -18px; left: 3px;
+  }
+  p.sized {
+    height: 86px;
+  }
+  c { display:block; background:blue; opacity:.5; height:108px; }
+  pad { display:block; height: 21px; background-color: lightgrey;}
+</style>
+</head>
+<body>
+  <div class="cols">
+    <p><legend></legend><pad></pad><c></c></p>
+  </div>
+  <div class="cols c2">
+    <p><legend></legend><pad></pad><c></c></p>
+  </div>
+  <div class="cols">
+    <p class="sized"><legend></legend><pad></pad><c style="height:98px"></c><c style="width:154px;height:10px"></c></p>
+  </div>
+  <div class="cols c2">
+    <p class="sized"><legend></legend><pad></pad><c></c></p>
+  </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-break/fieldset-001.html b/tests/wpt/web-platform-tests/css/css-break/fieldset-001.html
new file mode 100644
index 00000000000..d320fe15beb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-break/fieldset-001.html
@@ -0,0 +1,46 @@
+<!DOCTYPE html>
+<html><head>
+<title>CSS Test: fragmenting a fieldset in multicol layout</title>
+<link rel="author" title="Mats Palmgren" href="mailto:mats@mozilla.com">
+<link rel="help" href="https://drafts.csswg.org/css-break/#valdef-box-decoration-break-slice">
+<link rel="match" href="fieldset-001-ref.html">
+<style>
+  * {
+    color:black; background-color:white; font:16px/1 monospace; padding:0; margin:0;
+  }
+  body { width:600px; height:600px; }
+
+  .cols { columns:3; background:grey; margin-bottom: 10px; height:80px; column-fill:auto; }
+  .c2 { column-count:2; height:120px; }
+  legend { background:black; width:100px; height:19px; }
+  fieldset {
+    background-color: lightgrey;
+    border: solid;
+    border-width: 6px 3px 10px 7px;
+    margin: 3px 10px 7px 5px;
+  }
+  fieldset, legend {
+    background-clip: content-box;
+    padding: 10px 7px 20px 3px;
+  }
+  fieldset.sized {
+    height: 108px;
+  }
+  c { display:block; background:blue; opacity:.5; height:108px; }
+</style>
+</head>
+<body>
+  <div class="cols">
+    <fieldset><legend></legend><c></c></fieldset>
+  </div>
+  <div class="cols c2">
+    <fieldset><legend></legend><c></c></fieldset>
+  </div>
+  <div class="cols">
+    <fieldset class="sized"><legend></legend><c></c></fieldset>
+  </div>
+  <div class="cols c2">
+    <fieldset class="sized"><legend></legend><c></c></fieldset>
+  </div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-break/tall-break-inside-avoid-at-start.html b/tests/wpt/web-platform-tests/css/css-break/tall-break-inside-avoid-at-start.html
new file mode 100644
index 00000000000..6e9ab8bd9f5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-break/tall-break-inside-avoid-at-start.html
@@ -0,0 +1,10 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/css-break-3/#unforced-breaks">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<meta name="assert" content="Cannot break before a child if we're at the block-start of a fragmentainer">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="columns:2; column-fill:auto; column-gap:0; width:100px; height:100px; background:red;">
+  <div></div>
+  <div style="break-inside:avoid; height:200px; background:green;"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-display/animations/display-interpolation.html b/tests/wpt/web-platform-tests/css/css-display/animations/display-interpolation.html
new file mode 100644
index 00000000000..d0b1d9573b8
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-display/animations/display-interpolation.html
@@ -0,0 +1,47 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>display interpolation</title>
+<link rel="help" href="https://www.w3.org/TR/CSS2/visuren.html#display-prop">
+<meta name="assert" content="display supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+
+<style>
+.target {
+  display: block;
+}
+</style>
+
+<body>
+<script>
+test_interpolation({
+  property: 'display',
+  from: 'none',
+  to: 'flex',
+  method: 'CSS Animations',
+}, [
+  {at: -0.3, expect: 'block'},
+  {at: 0, expect: 'block'},
+  {at: 0.3, expect: 'block'},
+  {at: 0.6, expect: 'block'},
+  {at: 1, expect: 'block'},
+  {at: 1.5, expect: 'block'},
+]);
+test_interpolation({
+  property: 'display',
+  from: 'none',
+  to: 'flex',
+  method: 'Web Animations',
+}, [
+  {at: -0.3, expect: 'block'},
+  {at: 0, expect: 'block'},
+  {at: 0.3, expect: 'block'},
+  {at: 0.6, expect: 'block'},
+  {at: 1, expect: 'block'},
+  {at: 1.5, expect: 'block'},
+]);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17-notref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17-notref.html
new file mode 100644
index 00000000000..3d01985ed6b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17-notref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: 72px 'ui-sans-serif'; font-synthesis: none;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17.html
new file mode 100644
index 00000000000..9ce56ed8fa6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-17.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#standard-font-families"/>
+<link rel="mismatch" href="standard-font-family-17-notref.html"/>
+<meta name="assert" content="ui-sans-serif's bold isn't synthetic"/>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: bold 72px 'ui-sans-serif'; font-synthesis: none;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18-notref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18-notref.html
new file mode 100644
index 00000000000..7829a0c5e19
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18-notref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+<style>
+@font-face {
+    font-family: "AppleSystemUISansSerif";
+    src: local("ui-sans-serif");
+}
+</style>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: 72px 'AppleSystemUISansSerif'; font-synthesis: none;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18.html
new file mode 100644
index 00000000000..69e5cabd6ec
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-18.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#standard-font-families"/>
+<link rel="mismatch" href="standard-font-family-18-notref.html"/>
+<meta name="assert" content="ui-sans-serif's bold in @font-face isn't synthetic"/>
+<style>
+@font-face {
+    font-family: "AppleSystemUISansSerif";
+    src: local("ui-sans-serif");
+}
+</style>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: bold 72px 'AppleSystemUISansSerif'; font-synthesis: none;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19-notref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19-notref.html
new file mode 100644
index 00000000000..7e876ced313
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19-notref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font-size: 72px;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19.html
new file mode 100644
index 00000000000..43dc24b1675
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-19.html
@@ -0,0 +1,14 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#standard-font-families"/>
+<link rel="mismatch" href="standard-font-family-19-notref.html"/>
+<meta name="assert" content="ui-sans-serif works"/>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: 72px 'ui-sans-serif';">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2-ref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2-ref.html
index e19801ba770..a2fe8646e13 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2-ref.html
@@ -13,6 +13,7 @@ This test makes sure that the bold versions of the design system UI fonts work.
 <div style="display: inline-block; font: bold 72px '.SF NS Mono';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px '.SF UI Mono';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px '.AppleSystemUIFontRounded';">HeJllo</div>
+<div style="display: inline-block; font: bold 72px '.AppleSystemUIFont';">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2.html
index 4fbca52b659..2827c6c2cb8 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-2.html
@@ -16,6 +16,7 @@ This test makes sure that the bold versions of the design system UI fonts work.
 <div style="display: inline-block; font: bold 72px '.SF NS Mono'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px '.SF UI Mono'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px '.AppleSystemUIFontRounded'; font-synthesis: none;">HeJllo</div>
+<div style="display: inline-block; font: bold 72px '.AppleSystemUIFont'; font-synthesis: none;">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20-notref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20-notref.html
new file mode 100644
index 00000000000..7e876ced313
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20-notref.html
@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font-size: 72px;">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20.html
new file mode 100644
index 00000000000..7d0335e0616
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-20.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<html>
+<head>
+<link rel="author" title="Myles C. Maxfield" href="mailto:mmaxfield@apple.com"/>
+<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#standard-font-families"/>
+<link rel="mismatch" href="standard-font-family-20-notref.html"/>
+<meta name="assert" content="ui-sans-serif in @font-face works"/>
+<style>
+@font-face {
+    font-family: "AppleSystemUISansSerif";
+    src: local("ui-sans-serif");
+}
+</style>
+</head>
+<body>
+<div>
+<div style="display: inline-block; font: 72px 'AppleSystemUISansSerif';">HeJllo</div>
+</div>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6-ref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6-ref.html
index e9e24dfc62c..3c26321fffc 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6-ref.html
@@ -10,6 +10,7 @@ This test makes sure that the design system UI fonts don't work unless they are
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
+<div style="display: inline-block; font-size: 72px;">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6.html
index 9a5fd418bda..f6a0f158b94 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-6.html
@@ -22,6 +22,10 @@
     font-family: "DotAppleSystemUIFontRounded";
     src: local(".AppleSystemUIFontRounded");
 }
+@font-face {
+    font-family: "DotAppleSystemUIFont";
+    src: local(".AppleSystemUIFont");
+}
 </style>
 </head>
 <body>
@@ -31,6 +35,7 @@ This test makes sure that the design system UI fonts don't work unless they are
 <div style="display: inline-block; font: 72px 'DotSFNSMono';">HeJllo</div>
 <div style="display: inline-block; font: 72px 'DotSFUIMono';">HeJllo</div>
 <div style="display: inline-block; font: 72px 'DotAppleSystemUIFontRounded';">HeJllo</div>
+<div style="display: inline-block; font: 72px 'DotAppleSystemUIFont';">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7-ref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7-ref.html
index 4dad37fed3d..0e2df68c1e2 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7-ref.html
@@ -15,6 +15,10 @@
     font-family: "AppleSystemUIRounded";
     src: local("ui-rounded");
 }
+@font-face {
+    font-family: "AppleSystemUISansSerif";
+    src: local("ui-sans-serif");
+}
 @font-face {
     font-family: "DotAppleSystemUIFontSerif";
     src: local(".AppleSystemUIFontSerif");
@@ -31,6 +35,10 @@
     font-family: "DotAppleSystemUIFontRounded";
     src: local(".AppleSystemUIFontRounded");
 }
+@font-face {
+    font-family: "DotAppleSystemUIFont";
+    src: local(".AppleSystemUIFont");
+}
 </style>
 </head>
 <body>
@@ -39,10 +47,12 @@ This test makes sure that the bold versions of the design system UI fonts work i
 <div style="display: inline-block; font: bold 72px 'AppleSystemUISerif';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'AppleSystemUIMonospaced';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'AppleSystemUIRounded';">HeJllo</div>
+<div style="display: inline-block; font: bold 72px 'AppleSystemUISansSerif';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFontSerif';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotSFNSMono';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotSFUIMono';">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFontRounded';">HeJllo</div>
+<div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFont';">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7.html
index 68ebe0e04e6..11af83fc9e6 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-7.html
@@ -18,6 +18,10 @@
     font-family: "AppleSystemUIRounded";
     src: local("ui-rounded");
 }
+@font-face {
+    font-family: "AppleSystemUISansSerif";
+    src: local("ui-sans-serif");
+}
 @font-face {
     font-family: "DotAppleSystemUIFontSerif";
     src: local(".AppleSystemUIFontSerif");
@@ -34,6 +38,10 @@
     font-family: "DotAppleSystemUIFontRounded";
     src: local(".AppleSystemUIFontRounded");
 }
+@font-face {
+    font-family: "DotAppleSystemUIFont";
+    src: local(".AppleSystemUIFont");
+}
 </style>
 </head>
 <body>
@@ -42,10 +50,12 @@ This test makes sure that the bold versions of the design system UI fonts work i
 <div style="display: inline-block; font: bold 72px 'AppleSystemUISerif'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'AppleSystemUIMonospaced'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'AppleSystemUIRounded'; font-synthesis: none;">HeJllo</div>
+<div style="display: inline-block; font: bold 72px 'AppleSystemUISansSerif'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFontSerif'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotSFNSMono'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotSFUIMono'; font-synthesis: none;">HeJllo</div>
 <div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFontRounded'; font-synthesis: none;">HeJllo</div>
+<div style="display: inline-block; font: bold 72px 'DotAppleSystemUIFont'; font-synthesis: none;">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-ref.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-ref.html
index e9e24dfc62c..3c26321fffc 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family-ref.html
@@ -10,6 +10,7 @@ This test makes sure that the design system UI fonts don't work unless they are
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
 <div style="display: inline-block; font-size: 72px;">HeJllo</div>
+<div style="display: inline-block; font-size: 72px;">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family.html b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family.html
index 907a437207c..b093ad442e1 100644
--- a/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family.html
+++ b/tests/wpt/web-platform-tests/css/css-fonts/standard-font-family.html
@@ -13,6 +13,7 @@ This test makes sure that the design system UI fonts don't work unless they are
 <div style="display: inline-block; font: 72px '.SF NS Mono';">HeJllo</div>
 <div style="display: inline-block; font: 72px '.SF UI Mono';">HeJllo</div>
 <div style="display: inline-block; font: 72px '.AppleSystemUIFontRounded';">HeJllo</div>
+<div style="display: inline-block; font: 72px '.AppleSystemUIFont';">HeJllo</div>
 </div>
 </body>
 </html>
diff --git a/tests/wpt/web-platform-tests/css/css-lists/animations/list-style-image-interpolation.html b/tests/wpt/web-platform-tests/css/css-lists/animations/list-style-image-interpolation.html
new file mode 100644
index 00000000000..b953d8c2215
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-lists/animations/list-style-image-interpolation.html
@@ -0,0 +1,147 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>list-style-image interpolation</title>
+<link rel="help" href="https://drafts.csswg.org/css-lists-3/#propdef-list-style-image">
+<meta name="assert" content="list-style-image supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  list-style-image: url(../resources/blue-20.png);
+}
+.target {
+  background-color: black;
+  width: 100px;
+  list-style-image: url(../resources/green-20.png);
+}
+.expected {
+  background-color: green;
+}
+</style>
+
+<body>
+<template id="target-template">
+  <ul>
+    <li class="target"></li>
+  </ul>
+</template>
+<script>
+test_interpolation({
+  property: 'list-style-image',
+  from: neutralKeyframe,
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0, expect: 'url(../resources/green-20.png)'},
+  {at: 0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+test_interpolation({
+  property: 'list-style-image',
+  from: 'initial',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+test_interpolation({
+  property: 'list-style-image',
+  from: 'inherit',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+test_interpolation({
+  property: 'list-style-image',
+  from: 'unset',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+// Constant image
+test_no_interpolation({
+  property: 'list-style-image',
+  from: 'url(../resources/stripes-20.png)',
+  to: 'url(../resources/stripes-20.png)',
+});
+
+// None to image
+test_interpolation({
+  property: 'list-style-image',
+  from: 'none',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+// Image to image
+test_interpolation({
+  property: 'list-style-image',
+  from: 'url(../resources/green-20.png)',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0, expect: 'url(../resources/green-20.png)'},
+  {at: 0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+// Image to gradient
+test_interpolation({
+  property: 'list-style-image',
+  from: 'url(../resources/green-20.png)',
+  to: 'linear-gradient(45deg, blue, orange)',
+}, [
+  {at: -0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0, expect: 'url(../resources/green-20.png)'},
+  {at: 0.3, expect: 'url(../resources/green-20.png)'},
+  {at: 0.6, expect: 'linear-gradient(45deg, blue, orange)'},
+  {at: 1, expect: 'linear-gradient(45deg, blue, orange)'},
+  {at: 1.5, expect: 'linear-gradient(45deg, blue, orange)'},
+]);
+
+// Gradient to gradient
+test_interpolation({
+  property: 'list-style-image',
+  from: 'linear-gradient(-45deg, red, yellow)',
+  to: 'linear-gradient(45deg, blue, orange)',
+}, [
+  {at: -0.3, expect: 'linear-gradient(-45deg, red, yellow)'},
+  {at: 0, expect: 'linear-gradient(-45deg, red, yellow)'},
+  {at: 0.3, expect: 'linear-gradient(-45deg, red, yellow)'},
+  {at: 0.6, expect: 'linear-gradient(45deg, blue, orange)'},
+  {at: 1, expect: 'linear-gradient(45deg, blue, orange)'},
+  {at: 1.5, expect: 'linear-gradient(45deg, blue, orange)'},
+]);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-lists/resources/blue-20.png b/tests/wpt/web-platform-tests/css/css-lists/resources/blue-20.png
new file mode 100644
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diff --git a/tests/wpt/web-platform-tests/css/css-lists/resources/green-20.png b/tests/wpt/web-platform-tests/css/css-lists/resources/green-20.png
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diff --git a/tests/wpt/web-platform-tests/css/css-lists/resources/stripes-20.png b/tests/wpt/web-platform-tests/css/css-lists/resources/stripes-20.png
new file mode 100644
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GIT binary patch
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diff --git a/tests/wpt/web-platform-tests/css/css-masking/animations/mask-image-interpolation.html b/tests/wpt/web-platform-tests/css/css-masking/animations/mask-image-interpolation.html
new file mode 100644
index 00000000000..beb9c9eaab0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-masking/animations/mask-image-interpolation.html
@@ -0,0 +1,180 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>mask-image-interpolation</title>
+<link rel="help" href="https://drafts.fxtf.org/css-masking-1/#the-mask-image">
+<meta name="assert" content="mask-image supports animation">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.parent {
+  mask-image: url(../resources/blue-20.png);
+}
+.target {
+  width: 20px;
+  height: 20px;
+  display: inline-block;
+  background-color: black;
+  mask-image: url(../resources/stripes-20.png);
+}
+.expected {
+  background-color: green;
+  margin-right: 10px;
+}
+</style>
+
+<body>
+<script>
+// neutral
+test_interpolation({
+  property: 'mask-image',
+  from: neutralKeyframe,
+  to: 'url(../resources/green-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.6, expect: 'url(../resources/green-20.png)'},
+  {at: 1, expect: 'url(../resources/green-20.png)'},
+  {at: 1.5, expect: 'url(../resources/green-20.png)'},
+]);
+
+// initial
+test_interpolation({
+  property: 'mask-image',
+  from: 'initial',
+  to: 'url(../resources/green-20.png)',
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: 'url(../resources/green-20.png)'},
+  {at: 1, expect: 'url(../resources/green-20.png)'},
+  {at: 1.5, expect: 'url(../resources/green-20.png)'},
+]);
+
+// inherit
+test_interpolation({
+  property: 'mask-image',
+  from: 'inherit',
+  to: 'url(../resources/green-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.3, expect: 'url(../resources/blue-20.png)'},
+  {at: 0.6, expect: 'url(../resources/green-20.png)'},
+  {at: 1, expect: 'url(../resources/green-20.png)'},
+  {at: 1.5, expect: 'url(../resources/green-20.png)'},
+]);
+
+// unset
+test_interpolation({
+  property: 'mask-image',
+  from: 'unset',
+  to: 'url(../resources/stripes-20.png)',
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1, expect: 'url(../resources/stripes-20.png)'},
+  {at: 1.5, expect: 'url(../resources/stripes-20.png)'},
+]);
+
+// Image to image
+test_interpolation({
+  property: 'mask-image',
+  from: 'url(../resources/stripes-20.png)',
+  to: 'url(../resources/blue-20.png)',
+}, [
+  {at: -0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.6, expect: 'url(../resources/blue-20.png)'},
+  {at: 1, expect: 'url(../resources/blue-20.png)'},
+  {at: 1.5, expect: 'url(../resources/blue-20.png)'},
+]);
+
+//Image to gradient
+test_interpolation({
+  property: 'mask-image',
+  from: 'url(../resources/stripes-20.png)',
+  to: 'linear-gradient(45deg, blue, transparent)'
+}, [
+  {at: -0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.3, expect: 'url(../resources/stripes-20.png)'},
+  {at: 0.6, expect: 'linear-gradient(45deg, blue, transparent)'},
+  {at: 1, expect: 'linear-gradient(45deg, blue, transparent)'},
+  {at: 1.5, expect: 'linear-gradient(45deg, blue, transparent)'},
+]);
+
+// Keyword to image
+test_interpolation({
+  property: 'mask-image',
+  from: 'none',
+  to: 'url(../resources/green-20.png)',
+}, [
+  {at: -0.3, expect: 'none'},
+  {at: 0, expect: 'none'},
+  {at: 0.3, expect: 'none'},
+  {at: 0.6, expect: 'url(../resources/green-20.png)'},
+  {at: 1, expect: 'url(../resources/green-20.png)'},
+  {at: 1.5, expect: 'url(../resources/green-20.png)'},
+]);
+
+// Multiple to multiple
+var fromA = 'url(../resources/stripes-20.png)';
+var fromB = 'linear-gradient(-45deg, blue, transparent)';
+var toA = 'url(../resources/blue-20.png)';
+var toB = 'url(../resources/stripes-20.png)';
+var from = fromA + ', ' + fromB;
+var to = toA + ', ' + toB;
+test_interpolation({
+  property: 'mask-image',
+  from: from,
+  to: to,
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
+
+// Single to multiple
+from = 'url(../resources/blue-20.png)';
+toA = 'url(../resources/stripes-20.png)';
+toB = 'url(../resources/blue-20.png)';
+to = toA + ', ' + toB;
+test_interpolation({
+  property: 'mask-image',
+  from: from,
+  to: to,
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
+
+// Multiple mismatched types
+test_interpolation({
+  property: 'mask-image',
+  from: 'url(../resources/blue-20.png), none',
+  to: 'url(../resources/stripes-20.png), url(../resources/blue-20.png)',
+}, [
+  {at: -0.3, expect: from},
+  {at: 0, expect: from},
+  {at: 0.3, expect: from},
+  {at: 0.6, expect: to},
+  {at: 1, expect: to},
+  {at: 1.5, expect: to},
+]);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/css-masking/resources/blue-20.png b/tests/wpt/web-platform-tests/css/css-masking/resources/blue-20.png
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diff --git a/tests/wpt/web-platform-tests/css/css-masking/resources/green-20.png b/tests/wpt/web-platform-tests/css/css-masking/resources/green-20.png
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diff --git a/tests/wpt/web-platform-tests/css/css-masking/resources/stripes-20.png b/tests/wpt/web-platform-tests/css/css-masking/resources/stripes-20.png
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diff --git a/tests/wpt/web-platform-tests/css/css-multicol/equal-gap-and-rule.html b/tests/wpt/web-platform-tests/css/css-multicol/equal-gap-and-rule.html
new file mode 100644
index 00000000000..bf6d6b9cefa
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-multicol/equal-gap-and-rule.html
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<link rel="author" title="Morten Stenshorne" href="mailto:mstensho@chromium.org">
+<link rel="help" href="https://www.w3.org/TR/css-multicol-1/#column-gaps-and-rules">
+<link rel="match" href="../reference/ref-filled-green-100px-square.xht">
+<p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+<div style="columns:8; column-fill:auto; column-gap:5px; column-rule:5px solid green; width:100px; height:100px; background:red;">
+  <div style="height:800px; background:green;"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker-ref.html b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker-ref.html
new file mode 100644
index 00000000000..8095d5ca015
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker-ref.html
@@ -0,0 +1,28 @@
+<!DOCTYPE html>
+<meta charset="utf-8" />
+<title>CSS Reftest Reference</title>
+<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<style>
+span {
+  background: cyan;
+}
+.none {
+  list-style-type: none;
+}
+.string {
+  list-style-type: "2. ";
+}
+.content::marker {
+  content: "3. ";
+}
+</style>
+<ol class="none">
+  <li><span>1. inside decimal</span></li>
+  <li><span>2. inside string</span></li>
+  <li><span>3. inside content</span></li>
+</ol>
+<ol class="outside">
+  <li class="decimal"><span>outside decimal</span></li>
+  <li class="string"><span>outside string</span></li>
+  <li class="content"><span>outside content</span></li>
+</ol>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker.html b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker.html
new file mode 100644
index 00000000000..f0a994438f1
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/first-line-and-marker.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>Interaction of ::first-line and ::marker</title>
+<link rel="author" title="Oriol Brufau" href="mailto:obrufau@igalia.com" />
+<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#first-line-pseudo">
+<link rel="help" href="https://drafts.csswg.org/css-pseudo-4/#marker-pseudo">
+<link rel="match" href="first-line-and-marker-ref.html">
+<meta name="assert" content="Tests ::marker interaction with ::first-line pseudo element">
+<style>
+li::first-line {
+  background: cyan;
+}
+.inside {
+  list-style-position: inside;
+}
+.string {
+  list-style-type: "2. ";
+}
+.content::marker {
+  content: "3. ";
+}
+</style>
+<ol class="inside">
+  <li class="decimal">inside decimal</li>
+  <li class="string">inside string</li>
+  <li class="content">inside content</li>
+</ol>
+<ol class="outside">
+  <li class="decimal">outside decimal</li>
+  <li class="string">outside string</li>
+  <li class="content">outside content</li>
+</ol>
diff --git a/tests/wpt/web-platform-tests/css/css-pseudo/parsing/marker-supported-properties.html b/tests/wpt/web-platform-tests/css/css-pseudo/parsing/marker-supported-properties.html
index 451aac149db..a34fd76fea4 100644
--- a/tests/wpt/web-platform-tests/css/css-pseudo/parsing/marker-supported-properties.html
+++ b/tests/wpt/web-platform-tests/css/css-pseudo/parsing/marker-supported-properties.html
@@ -35,7 +35,7 @@ test_pseudo_computed_value("::marker", "font-weight", "900");
 test_pseudo_computed_value("::marker", "color", "rgb(0, 100, 200)");
 
 // ::marker supports `text-combine-upright`, `unicode-bidi` and `direction`
-test_pseudo_computed_value("::marker", "text-combine-upright", "none");
+test_pseudo_computed_value("::marker", "text-combine-upright", "all");
 test_pseudo_computed_value("::marker", "unicode-bidi", "plaintext");
 test_pseudo_computed_value("::marker", "direction", "rtl");
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/scroll-snap-stop-change.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/scroll-snap-stop-change.html
index 0a73ff1206d..10e90d3cff4 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/scroll-snap-stop-change.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/scroll-snap-stop-change.html
@@ -8,20 +8,24 @@ div, html, body {
   margin: 0;
   padding: 0;
 }
+
 html {
   scroll-snap-type: x mandatory;
   overflow: scroll;
 }
+
 #scroller {
   scroll-snap-type: x mandatory;
   overflow: scroll;
-  height: 300px;
-  width: 300px;
+  height: 400px;
+  width: 400px;
 }
+
 .large_space {
   width: 2000px;
   height: 2000px;
 }
+
 .snap_area {
   scroll-snap-align: none start;
   width: 100px;
@@ -29,13 +33,20 @@ html {
 
   background-color: blue;
 }
+
 .snap_area:nth-child(1) {
+  margin-left: 0;
+}
+
+.snap_area:nth-child(2) {
   margin-left: 100px;
 }
-.snap_area:nth-child(2) {
+
+.snap_area:nth-child(3) {
   margin-left: 300px;
 }
-.snap_area:nth-child(3) {
+
+.snap_area:nth-child(4) {
   margin-left: 500px;
 }
 </style>
@@ -44,11 +55,13 @@ html {
 <div class="snap_area"></div>
 <div class="snap_area"></div>
 <div class="snap_area"></div>
+<div class="snap_area"></div>
 
 <div id="scroller">
   <div class="snap_area"></div>
   <div class="snap_area"></div>
   <div class="snap_area"></div>
+  <div class="snap_area"></div>
   <div class="large_space"></div>
 </div>
 
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/direction-rtl.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/direction-rtl.html
new file mode 100644
index 00000000000..d10c013e1ee
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/direction-rtl.html
@@ -0,0 +1,49 @@
+<!DOCTYPE html>
+<title>
+  Scrollers should snap to the closest snap point on initial layout (using 'direction: rtl')
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<link rel="match" href="snap-after-initial-layout-ref.html" />
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+  direction: rtl;
+}
+
+#close-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  right: 200px;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+#far-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  right: 700px;
+  background-color: red;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="close-target"></div>
+  <div id="far-target"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html
new file mode 100644
index 00000000000..c8009b626cb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/snap-after-initial-layout-ref.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>Reference</title>
+<style>
+div {
+  margin: 0;
+  position: absolute;
+}
+
+#target {
+  width: 300px;
+  height: 300px;
+  top: 0;
+  left: 200px;
+  background-color: green;
+}
+</style>
+
+<div>
+  <div id="target"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-horizontal-tb.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-horizontal-tb.html
new file mode 100644
index 00000000000..aa65dde1810
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-horizontal-tb.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<title>
+  Scrollers should snap to the closest snap point on initial layout
+  (using 'writing-mode: horizontal-tb')
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<link rel="match" href="snap-after-initial-layout-ref.html" />
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+  writing-mode: horizontal-tb;
+}
+
+#close-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 200px;
+  background-color: green;
+  scroll-snap-align: start end;
+}
+
+#far-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 500px;
+  background-color: red;
+  scroll-snap-align: start end;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="close-target"></div>
+  <div id="far-target"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-lr.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-lr.html
new file mode 100644
index 00000000000..898e64be619
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-lr.html
@@ -0,0 +1,50 @@
+<!DOCTYPE html>
+<title>
+  Scrollers should snap to the closest snap point on initial layout
+  (using 'writing-mode: vertical-lr')
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<link rel="match" href="snap-after-initial-layout-ref.html" />
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+  writing-mode: vertical-lr;
+}
+
+#close-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 200px;
+  background-color: green;
+  scroll-snap-align: end start;
+}
+
+#far-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 500px;
+  background-color: red;
+  scroll-snap-align: end start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="close-target"></div>
+  <div id="far-target"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-rl.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-rl.html
new file mode 100644
index 00000000000..b3141f03f3c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-initial-layout/writing-mode-vertical-rl.html
@@ -0,0 +1,53 @@
+<!DOCTYPE html>
+<title>
+  Scrollers should snap to the closest snap point on initial layout
+  (using 'writing-mode: vertical-rl')
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<link rel="match" href="snap-after-initial-layout-ref.html" />
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  /* Chrome bug using 'position:absolute' with LayoutNG disabled */
+  position: relative;
+
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+  writing-mode: vertical-rl;
+}
+
+#close-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 200px;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+#far-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 500px;
+  background-color: red;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="close-target"></div>
+  <div id="far-target"></div>
+</div>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-only-snap-area.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-only-snap-area.html
new file mode 100644
index 00000000000..53141707bb3
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-only-snap-area.html
@@ -0,0 +1,55 @@
+<!DOCTYPE html>
+<title>
+  Adding a new snap area when there are none should make the scroller snap to it.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+}
+
+#target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 100px;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="target"></div>
+</div>
+
+<script>
+const target = document.getElementById("target");
+const scroller = document.getElementById("scroller");
+
+test(() => {
+  scroller.removeChild(target);
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 0);
+  assert_equals(scroller.scrollLeft, 0);
+
+  scroller.appendChild(target);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Adding a new snap area when there are none should make the scroller snap to it.");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-snap-area-while-snapped.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-snap-area-while-snapped.html
new file mode 100644
index 00000000000..d26359658f4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/adding-snap-area-while-snapped.html
@@ -0,0 +1,66 @@
+<!DOCTYPE html>
+<title>
+  Adding a new snap area while already snapped should not make the scroller snap to it.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+}
+
+#initial-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 100px;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+#other-target {
+  width: 300px;
+  height: 300px;
+  top: 300px;
+  left: 300px;
+  background-color: red;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="initial-target"></div>
+  <div id="other-target"></div>
+</div>
+
+<script>
+const initial_target = document.getElementById("initial-target");
+const other_target = document.getElementById("other-target");
+const scroller = document.getElementById("scroller");
+
+test(() => {
+  scroller.removeChild(other_target);
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+
+  scroller.appendChild(other_target);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Adding a new snap area while already snapped should not make the scroller snap to it.");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/move-current-target.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/move-current-target.html
new file mode 100644
index 00000000000..83c2c478bf5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/move-current-target.html
@@ -0,0 +1,118 @@
+<!DOCTYPE html>
+<title>
+  Moving the current snap target should make the scroller resnap to it.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  position: relative;
+  margin: 0;
+}
+
+#block {
+  height: 100px;
+  width: 100px;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+}
+
+#initial-target {
+  width: 300px;
+  height: 300px;
+  left: 100px;
+  top: 0;
+  transform: none;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+#other-target {
+  width: 300px;
+  height: 300px;
+  left: 300px;
+  background-color: red;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div id="block"></div>
+  <div id="initial-target"></div>
+  <div id="other-target"></div>
+  <div class="area"></div>
+</div>
+
+<script>
+const initial_target = document.getElementById("initial-target");
+const other_target = document.getElementById("other-target");
+const block = document.getElementById("block");
+const scroller = document.getElementById("scroller");
+
+function cleanup() {
+  initial_target.style.setProperty("transform", "none");
+  initial_target.style.setProperty("top", "0");
+  block.style.setProperty("height", "100px");
+}
+
+test(t => {
+  t.add_cleanup(cleanup);
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+
+  initial_target.style.setProperty("top", "300px");
+  assert_equals(scroller.scrollTop, 400);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Moving the current snap target should make the scroller resnap to it.");
+
+test(t => {
+  t.add_cleanup(cleanup);
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+
+  block.style.setProperty("height", "200px");
+  assert_equals(scroller.scrollTop, 200);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Changing the layout of other elements should be able to cause resnapping to \
+the target.");
+
+test(t => {
+  t.add_cleanup(cleanup);
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+
+  // TODO(alsan): Chrome currently doesn't correctly re-snap due to transform.
+  // It seems to be an invalidation issue. http://crbug.com/1028316
+  initial_target.style.setProperty("transform", "translate(0,100px)");
+  assert_equals(scroller.scrollTop, 200);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Transforming the current snap target should make the scroller resnap to it.");
+
+test(t => {
+  t.add_cleanup(cleanup);
+  initial_target.style.setProperty("top", "100px");
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 200);
+  assert_equals(scroller.scrollLeft, 100);
+
+  initial_target.style.setProperty("transform", "translate(0,100px)");
+  initial_target.style.setProperty("top", "0");
+  assert_equals(scroller.scrollTop, 200);
+  assert_equals(scroller.scrollLeft, 100);
+}, "Applying two property changes that do not change the visual offset of the \
+target should not change the scroll offset.");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/remove-current-target.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/remove-current-target.html
new file mode 100644
index 00000000000..82bddf80748
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/remove-current-target.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<title>
+  Removing the current snap target should make the scroller snap to a new target.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+}
+
+#initial-target {
+  width: 300px;
+  height: 300px;
+  top: 100px;
+  left: 100px;
+  background-color: red;
+  scroll-snap-align: start;
+}
+
+#other-target {
+  width: 300px;
+  height: 300px;
+  top: 300px;
+  left: 300px;
+  background-color: green;
+  scroll-snap-align: start;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="initial-target"></div>
+  <div id="other-target"></div>
+</div>
+
+<script>
+const initial_target = document.getElementById("initial-target");
+const other_target = document.getElementById("other-target");
+const scroller = document.getElementById("scroller");
+
+test(() => {
+  scroller.scrollTo(0,0);
+  assert_equals(scroller.scrollTop, 100);
+  assert_equals(scroller.scrollLeft, 100);
+
+  scroller.removeChild(initial_target);
+  assert_equals(scroller.scrollTop, 300);
+  assert_equals(scroller.scrollLeft, 300);
+}, "Removing the current snap target should make the scroller snap to a new target.");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/snap-to-different-targets.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/snap-to-different-targets.html
new file mode 100644
index 00000000000..6ceab295e4c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-after-relayout/snap-to-different-targets.html
@@ -0,0 +1,92 @@
+<!DOCTYPE html>
+<title>
+  The scroller should try to resnap to targets for both axes if possible.
+</title>
+<link rel="help" href="https://drafts.csswg.org/css-scroll-snap/#re-snap" />
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<style>
+div {
+  position: absolute;
+  margin: 0;
+}
+
+#scroller {
+  height: 500px;
+  width: 500px;
+  overflow: hidden;
+  scroll-snap-type: both mandatory;
+}
+
+#x-axis-target {
+  scroll-snap-align: none start;
+  background-color: blue;
+  width: 100px;
+  height: 100px;
+  top: 400px;
+  left: 200px;
+}
+
+#y-axis-target {
+  scroll-snap-align: start none;
+  background-color: green;
+  width: 100px;
+  height: 100px;
+  top: 200px;
+  left: 400px;
+}
+
+#far-x-axis-target {
+  scroll-snap-align: none start;
+  background-color: blue;
+  width: 100px;
+  height: 100px;
+  top: 1200px;
+  left: 300px;
+}
+
+#far-y-axis-target {
+  scroll-snap-align: start none;
+  background-color: green;
+  width: 100px;
+  height: 100px;
+  top: 300px;
+  left: 1200px;
+}
+
+.area {
+  width: 2000px;
+  height: 2000px;
+}
+</style>
+
+<div id="scroller">
+  <div class="area"></div>
+  <div id="x-axis-target"></div>
+  <div id="y-axis-target"></div>
+  <div id="far-x-axis-target"></div>
+  <div id="far-y-axis-target"></div>
+</div>
+
+<script>
+
+const x_target = document.getElementById("x-axis-target");
+const y_target = document.getElementById("y-axis-target");
+const scroller = document.getElementById("scroller");
+
+test(() => {
+  // The scroller should be snapped to the two closest points on first layout.
+  assert_equals(scroller.scrollTop, 200);
+  assert_equals(scroller.scrollLeft, 200);
+  x_target.style.setProperty("left", "1000px");
+  y_target.style.setProperty("top", "1000px");
+
+  // The style change makes it impossible for the scroller to snap to both
+  // targets, but at least one of the targets should be preserved. The scroller
+  // should then re-evaluate the snap point for the other axis.
+  const snapped_to_x = scroller.scrollLeft == 1000 && scroller.scrollTop == 300;
+  const snapped_to_y = scroller.scrollTop == 1000 && scroller.scrollLeft == 300;
+  assert_true(snapped_to_x || snapped_to_y);
+}, "Scroller should snap to at least one of the targets if unable to snap to\
+both after a layout change.");
+</script>
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-caputring-add-scroll-container.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-add-scroll-container.html
similarity index 92%
rename from tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-caputring-add-scroll-container.html
rename to tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-add-scroll-container.html
index d0453676392..15f44ed8b7b 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-caputring-add-scroll-container.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-add-scroll-container.html
@@ -89,7 +89,7 @@ const document_scroller = document.scrollingElement;
 test(() => {
   // Confirm that the document-level scroller is the snap container for all of
   // the snap areas.
-  document_scroller.scrollBy(0, 10);
+  document_scroller.scrollTo(0, 10);
   assert_equals(document_scroller.scrollTop, 500);
   // Snaps to the inner snap area.
   document_scroller.scrollBy(0, 75);
@@ -121,9 +121,13 @@ test(() => {
 
  // Test that attaching a new snap container also properly assigns snap areas.
  test(() => {
+  // All containers should capture snap areas.
+  middle_scroller.style.setProperty("overflow", "scroll");
+  inner_scroller.style.setProperty("overflow", "scroll");
+
   // Sanity check that the scrollers still snap to the snap areas.
-  document_scroller.scrollBy(0, 10);
-  inner_scroller.scrollBy(0,10);
+  document_scroller.scrollTo(0, 10);
+  inner_scroller.scrollTo(0,10);
   assert_equals(inner_scroller.scrollTop, 300);
   assert_equals(document_scroller.scrollTop, 500);
 
@@ -142,7 +146,7 @@ test(() => {
   assert_equals(document_scroller.scrollTop, 400);
 
   // Inserted scroller snaps.
-  inserted_scroller.scrollBy(0, 10);
+  inserted_scroller.scrollTo(0, 10);
   assert_equals(inserted_scroller.scrollTop, 500);
  }, "Attaching a new element that is scrollable should assign the correct snap\
  areas to it.");
diff --git a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html
index 9b824071599..d3750abdd7e 100644
--- a/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html
+++ b/tests/wpt/web-platform-tests/css/css-scroll-snap/snap-area-capturing-remove-scroll-container.html
@@ -80,16 +80,14 @@ test(() => {
   const middle_scroller = document.getElementById("middle-scroller");
   const document_scroller = document.scrollingElement;
 
+  // Inner scroller should snap to its captured area.
   // Middle scroller doesn't snap.
   // Document scroller should snap to its only captured area.
-  document_scroller.scrollBy(0, 100);
+  inner_scroller.scrollBy(0,10);
   middle_scroller.scrollBy(0, 10);
-  assert_equals(inner_scroller.scrollTop, 0);
-  assert_equals(middle_scroller.scrollTop, 10);
-  assert_equals(document_scroller.scrollTop, 500);
-
-  // Inner scroller snaps.
-  inner_scroller.scrollBy(0, 10);
+  // Scroll to (0,600), where we would expect the inner snap area to be relative
+  // to the document scroller.
+  document_scroller.scrollTo(0, 600);
   assert_equals(inner_scroller.scrollTop, 300);
   assert_equals(middle_scroller.scrollTop, 10);
   assert_equals(document_scroller.scrollTop, 500);
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001-ref.html
deleted file mode 100644
index d4f0281ae48..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: unsized div</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  height: 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001.html
deleted file mode 100644
index 4d17602a95f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-001.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: unsized div</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-001-ref.html">
-<meta name="assert" content="intrinsic-size is used to size the div as if it had a single child of this size">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002-ref.html
deleted file mode 100644
index ab847fc36e5..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002-ref.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with max-content parent</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#border {
-  width: max-content;
-  border: 1px solid black;
-}
-#target {
-  background: lightblue;
-  width: 111px;
-  height: 222px;
-}
-</style>
-
-<div id=border>
-  <div id=target></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002.html
deleted file mode 100644
index 55f20949412..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-002.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with max-content parent</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-002-ref.html">
-<meta name="assert" content="intrinsic-size is used to size the div, with parent's max-content width respecting it">
-
-<style>
-#border {
-  width: max-content;
-  border: 1px solid black;
-}
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-}
-</style>
-
-<div id=border>
-  <div id=target></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003-ref.html
deleted file mode 100644
index 6a2d0514989..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width specified</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: 50px;
-  height: 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003.html
deleted file mode 100644
index 3dd41ba1d2c..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-003.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width specified</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-003-ref.html">
-<meta name="assert" content="intrinsic-size's width is ignored if width is specified">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-  width: 50px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004-ref.html
deleted file mode 100644
index 6e710943de9..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width is min-content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: 111px;
-  height: 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004.html
deleted file mode 100644
index 9cce7ae25fc..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-004.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width is min-content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-004-ref.html">
-<meta name="assert" content="div is sized to intrinsic-width if width is min-content">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-  width: min-content;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005-ref.html
deleted file mode 100644
index 950f7190cac..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width is max-content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: 111px;
-  height: 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005.html
deleted file mode 100644
index 92b777d22e0..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-005.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: width is max-content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-004-ref.html">
-<meta name="assert" content="div is sized to intrinsic-width if width is max-content">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-  width: max-content;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006-ref.html
deleted file mode 100644
index d545093e2db..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006-ref.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: unsized div, intrinsic-size is small</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  height: 6px;
-  contain: size;
-}
-</style>
-
-<div id=target>Lorem ipsum</div>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006.html
deleted file mode 100644
index 82c6e8eef85..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-006.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: unsized div, intrinsic-size is small</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-006-ref.html">
-<meta name="assert" content="content dimensions are ignored if intrinsic-size is specified">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 5px 6px;
-}
-</style>
-
-<div id=target>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007-ref.html
deleted file mode 100644
index 6b3f63685ac..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007-ref.html
+++ /dev/null
@@ -1,27 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with border</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#border {
-  border: 1px solid blue;
-  width: max-content;
-}
-
-#target {
-  background: lightblue;
-  box-sizing: content-box;
-  width: 55px;
-  height: 66px;
-
-  border-style: solid;
-  border-color: black;
-  border-width: 2px 3px 5px 7px;
-}
-</style>
-
-<div id=border>
-  <div id=target></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007.html
deleted file mode 100644
index 85fcae6cd91..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-007.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with border</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-007-ref.html">
-<meta name="assert" content="intrinsic-size sizes the content box, not the border box">
-
-<style>
-#border {
-  border: 1px solid blue;
-  width: max-content;
-}
-
-#target {
-  background: lightblue;
-  intrinsic-size: 55px 66px;
-  border-style: solid;
-  border-color: black;
-  border-width: 2px 3px 5px 7px;
-}
-</style>
-
-<div id=border>
-  <div id=target></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008-ref.html
deleted file mode 100644
index 5c6186fd48c..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008-ref.html
+++ /dev/null
@@ -1,37 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: writing modes</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.border {
-  border: 1px solid blue;
-  width: max-content;
-  margin: 5px;
-}
-
-.box {
-  background: lightblue;
-  box-sizing: content-box;
-  width: 55px;
-  height: 66px;
-  border-style: solid;
-  border-color: black;
-  border-width: 2px 3px 5px 7px;
-  padding: 11px 13px 17px 19px;
-}
-.verticalrl {
-  writing-mode: vertical-rl;
-}
-.verticallr {
-  writing-mode: vertical-lr;
-}
-.horizontaltb {
-  writing-mode: horizontal-tb;
-}
-</style>
-
-<div class=border><div class="box verticalrl">Lorem</div></div>
-<div class=border><div class="box verticallr">Ipsum</div></div>
-<div class=border><div class="box horizontaltb">Dolor</div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008.html
deleted file mode 100644
index f3b344f6b0a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-008.html
+++ /dev/null
@@ -1,37 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: writing modes</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-008-ref.html">
-<meta name="assert" content="intrinsic-size specifies physical dimensions, and respects writing modes">
-
-<style>
-.border {
-  border: 1px solid blue;
-  width: max-content;
-  margin: 5px;
-}
-
-.box {
-  background: lightblue;
-  intrinsic-size: 55px 66px;
-  border-style: solid;
-  border-color: black;
-  border-width: 2px 3px 5px 7px;
-  padding: 11px 13px 17px 19px;
-}
-.verticalrl {
-  writing-mode: vertical-rl;
-}
-.verticallr {
-  writing-mode: vertical-lr;
-}
-.horizontaltb {
-  writing-mode: horizontal-tb;
-}
-</style>
-
-<div class=border><div class="box verticalrl">Lorem</div></div>
-<div class=border><div class="box verticallr">Ipsum</div></div>
-<div class=border><div class="box horizontaltb">Dolor</div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009-ref.html
deleted file mode 100644
index 223e0c8a33a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009-ref.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: select multiple</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.border {
-  border: 1px solid blue;
-  width: max-content;
-  margin: 5px;
-}
-
-select {
-  background: lightblue;
-  box-sizing: content-box;
-  width: 55px;
-  height: 66px;
-  overflow: visible;
-}
-</style>
-
-<select multiple></select>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009.html
deleted file mode 100644
index 06a02fe78bd..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-009.html
+++ /dev/null
@@ -1,23 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: select multiple</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-009-ref.html">
-<meta name="assert" content="intrinsic-size sizes select multiple">
-
-<style>
-.border {
-  border: 1px solid blue;
-  width: max-content;
-  margin: 5px;
-}
-
-select {
-  intrinsic-size: 55px 66px;
-  background: lightblue;
-  overflow: visible;
-}
-</style>
-
-<select multiple></select>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010-ref.html
deleted file mode 100644
index eaaa0977f13..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010-ref.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  width: 500px;
-  height: 100px;
-}
-.item {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#one {
-  background: lightblue;
-  width: 55px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  width: 66px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  width: 77px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010.html
deleted file mode 100644
index eea76ffb073..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-010.html
+++ /dev/null
@@ -1,40 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-010-ref.html">
-<meta name="assert" content="items are flexed correctly when they are sized by intrinsic-size in a flex row">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  width: 500px;
-  height: 100px;
-}
-.item {
-  border: 1px solid black;
-}
-#one {
-  background: lightblue;
-  intrinsic-size: 55px 11px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  intrinsic-size: 66px 22px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  intrinsic-size: 77px 33px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011-ref.html
deleted file mode 100644
index 29d1f4e2d1a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011-ref.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex column</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: column;
-  width: 100px;
-  height: 200px;
-}
-.item {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#one {
-  background: lightblue;
-  height: 11px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  height: 22px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  height: 33px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011.html
deleted file mode 100644
index c7888f906f8..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-011.html
+++ /dev/null
@@ -1,40 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex column</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-011-ref.html">
-<meta name="assert" content="items are flexed correctly when they are sized by intrinsic-size in a flex column">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: column;
-  width: 100px;
-  height: 200px;
-}
-.item {
-  border: 1px solid black;
-}
-#one {
-  background: lightblue;
-  intrinsic-size: 55px 11px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  intrinsic-size: 66px 22px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  intrinsic-size: 77px 33px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012-ref.html
deleted file mode 100644
index ed9857aa256..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  width: 100px;
-  height: 200px;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012.html
deleted file mode 100644
index 889b07ace92..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-012.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-012-ref.html">
-<meta name="assert" content="intrinsic-size overrides replaced content's intrinsic dimensions">
-
-<style>
-#target {
-  intrinsic-size: 100px 200px;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013-ref.html
deleted file mode 100644
index 9f8334c03d5..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013-ref.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-size changes</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#border {
-  width: max-content;
-  border: 1px solid black;
-}
-#border > div {
-  width: 77px;
-  height: 88px;
-}
-</style>
-
-<div id=border><div id=target></div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013.html
deleted file mode 100644
index 1082100012f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-013.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<!doctype html>
-<html class="reftest-wait">
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-size changes.</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-013-ref.html">
-<meta name="assert" content="changes in intrinsic-size cause reflow">
-<script src="/common/reftest-wait.js"></script>
-
-<style>
-#border {
-  width: max-content;
-  border: 1px solid black;
-}
-#border > div {
-  intrinsic-size: 55px 66px;
-}
-</style>
-
-<div id=border><div id=target></div></div>
-
-<script>
-function changeStyle() {
-  document.getElementById("target").style = "intrinsic-size: 77px 88px;";
-  requestAnimationFrame(takeScreenshot);
-}
-
-onload = () => requestAnimationFrame(() => requestAnimationFrame(changeStyle));
-
-</script>
-</html>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014-ref.html
deleted file mode 100644
index 66c10824893..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014-ref.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: fieldset</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-fieldset {
-  box-sizing: content-box;
-  width: 111px;
-  height: 222px;
-}
-</style>
-
-<fieldset>
-  <legend>This is a legend</legend>
-  This is some content.
-</fieldset>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014.html
deleted file mode 100644
index 4dd45a2da40..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-014.html
+++ /dev/null
@@ -1,19 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: fieldset</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-014-ref.html">
-<meta name="assert" content="intrinsic-size sizes fieldsets">
-
-<style>
-fieldset {
-  width: max-content;
-  intrinsic-size: 111px 222px;
-}
-</style>
-
-<fieldset>
-  <legend>This is a legend</legend>
-  This is some content.
-</fieldset>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015-ref.html
deleted file mode 100644
index ae65a3b5ca5..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015-ref.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>CSS intrinsic-size: inline flex</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-size">
-<style>
-div {
-  display: inline-flex;
-  border: 5px solid green;
-  width: 111px;
-  height: 222px;
-  box-sizing: content-box;
-}
-</style>
-
-<div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015.html
deleted file mode 100644
index 5ca5e49992e..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-015.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>CSS intrinsic-size: inline flex</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-contain-1/#containment-size">
-<link rel="match" href="intrinsic-size-015-ref.html">
-<meta name="assert" content="intrinsic-size sizes an inline-flex element">
-<style>
-div {
-  display: inline-flex;
-  border: 5px solid green;
-  intrinsic-size: 111px 222px;
-  color: transparent;
-}
-</style>
-
-<div>test</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016-ref.html
deleted file mode 100644
index f80510f6306..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016-ref.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row, items with size containment (ref)</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  width: 500px;
-  height: 100px;
-}
-.item {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#one {
-  background: lightblue;
-  width: 55px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  width: 66px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  width: 77px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016.html
deleted file mode 100644
index ce6ac5c56e4..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-016.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row, items with size containment</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-016-ref.html">
-<meta name="assert" content="intrinsic-size take 'priority' over size-containment in flex">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  width: 500px;
-  height: 100px;
-}
-.item {
-  border: 1px solid black;
-  contain: size;
-}
-#one {
-  background: lightblue;
-  intrinsic-size: 55px 11px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  intrinsic-size: 66px 22px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  intrinsic-size: 77px 33px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017-ref.html
deleted file mode 100644
index 553451a7075..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017-ref.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content (vertical-lr)</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-body {
-  writing-mode: vertical-lr;
-}
-#target {
-  width: 100px;
-  height: 200px;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017.html
deleted file mode 100644
index 5e2122f34ec..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-017.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content (vertical-lr)</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-017-ref.html">
-<meta name="assert" content="intrinsic-size specifies physical dimensions on replaced content">
-
-<style>
-body {
-  writing-mode: vertical-lr;
-}
-#target {
-  intrinsic-size: 100px 200px;
-  inline-size: min-content;
-  block-size: auto;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018-ref.html
deleted file mode 100644
index 17261caa8af..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: sized div</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: 55px;
-  height: 66px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018.html
deleted file mode 100644
index 68931834d63..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-018.html
+++ /dev/null
@@ -1,18 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: sized div</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-018-ref.html">
-<meta name="assert" content="width / height ignore intrinsic-size">
-
-<style>
-#target {
-  background: lightblue;
-  width: 55px;
-  height: 66px;
-  intrinsic-size: 111px 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019-ref.html
deleted file mode 100644
index 8e55d7b02f9..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with fit-content width</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: 111px;
-  height: 222px;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019.html
deleted file mode 100644
index cae8e0739fe..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-019.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: div with fit-content width</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-019-ref.html">
-<meta name="assert" content="div is sized to intrinsic-width when width is fit-content">
-
-<style>
-#target {
-  background: lightblue;
-  intrinsic-size: 111px 222px;
-  width: fit-content;
-}
-</style>
-
-<div id=target></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020-ref.html
deleted file mode 100644
index 1ee5ba8376d..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020-ref.html
+++ /dev/null
@@ -1,14 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content (min-content)</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  width: 100px;
-  height: 200px;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020.html
deleted file mode 100644
index a7286ce1054..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-020.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content (min-content)</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-020-ref.html">
-<meta name="assert" content="replaced content is sized to intrinsic-width when width is min-content">
-
-<style>
-#target {
-  intrinsic-size: 100px 200px;
-  inline-size: min-content;
-  block-size: auto;
-}
-</style>
-
-<img id=target src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021-ref.html
deleted file mode 100644
index 35db43fcf44..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021-ref.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row, flex height based on children</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  flex-wrap: wrap;
-  align-items: flex-start;
-  width: 250px;
-}
-.item {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#one {
-  background: lightblue;
-  width: 55px;
-  height: 21px;
-}
-#two {
-  background: lightgreen;
-  width: 66px;
-  height: 42px;
-}
-#three {
-  background: lightgrey;
-  align-self: stretch;
-  width: 77px;
-  height: 63px;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021.html
deleted file mode 100644
index 04591924f65..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-021.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex row, flex height based on children</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-021-ref.html">
-<meta name="assert" content="flex container is sized by the largest intrinsic-height of content, even with align-self: stretch">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: row;
-  flex-wrap: wrap;
-  align-items: flex-start;
-  width: 250px;
-}
-.item {
-  border: 1px solid black;
-}
-#one {
-  background: lightblue;
-  intrinsic-size: 55px 21px;
-}
-#two {
-  background: lightgreen;
-  intrinsic-size: 66px 42px;
-}
-#three {
-  background: lightgrey;
-  align-self: stretch;
-  intrinsic-size: 77px 63px;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one></div>
-  <div class=item id=two></div>
-  <div class=item id=three></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022-ref.html
deleted file mode 100644
index b0df1992834..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022-ref.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  box-sizing: content-box;
-  width: 70px;
-  height: 80px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022.html
deleted file mode 100644
index 3593b9cce38..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-022.html
+++ /dev/null
@@ -1,31 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-022-ref.html">
-<meta name="assert" content="grid container is sized by intrinsic-size, even if definite track sizes overflow">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  intrinsic-size: 70px 80px;
-  width: max-content;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023-ref.html
deleted file mode 100644
index 800e4ae7064..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023-ref.html
+++ /dev/null
@@ -1,29 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 1fr 2fr / 3fr 4fr;
-  box-sizing: content-box;
-  width: 70px;
-  height: 80px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023.html
deleted file mode 100644
index c64ef66a03f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-023.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-023-ref.html">
-<meta name="assert" content="grid container is sized by intrinsic-size, with fr-tracks using that space">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 1fr 2fr / 3fr 4fr;
-  intrinsic-size: 70px 80px;
-  width: max-content;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024-ref.html
deleted file mode 100644
index 02ec85a0084..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024-ref.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size, large size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  box-sizing: content-box;
-  width: 200px;
-  height: 300px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024.html
deleted file mode 100644
index b11317d96b0..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-024.html
+++ /dev/null
@@ -1,31 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size, large size</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-024-ref.html">
-<meta name="assert" content="intrinsic-size sizes grid container, even if definite tracks are smaller">
-
-<style>
-#grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  intrinsic-size: 200px 300px;
-  width: max-content;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div id=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025-ref.html
deleted file mode 100644
index 60d5cc9cd9a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025-ref.html
+++ /dev/null
@@ -1,56 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size, auto-fit</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  width: 70px;
-  height: 80px;
-  box-sizing: content-box;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  grid-template: repeat(auto-fit, 10px) / 3fr 4fr;
-}
-.two {
-  grid-template: 1fr 2fr / repeat(auto-fit, 15px);
-}
-.three {
-  grid-template: repeat(auto-fit, 10px) / repeat(auto-fit, 15px);
-}
-
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025.html
deleted file mode 100644
index ab9c56fc528..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-025.html
+++ /dev/null
@@ -1,57 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size, auto-fit</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-025-ref.html">
-<meta name="assert" content="definite size auto-fit uses intrinsic-size for the available space">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  intrinsic-size: 70px 80px;
-  width: max-content;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  grid-template: repeat(auto-fit, 10px) / 3fr 4fr;
-}
-.two {
-  grid-template: 1fr 2fr / repeat(auto-fit, 15px);
-}
-.three {
-  grid-template: repeat(auto-fit, 10px) / repeat(auto-fit, 15px);
-}
-
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026-ref.html
deleted file mode 100644
index 2e456b43422..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026-ref.html
+++ /dev/null
@@ -1,53 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid auto-fit, min- max- size interactions</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  display: inline-grid;
-  border: 1px solid black;
-  grid-template-columns: repeat(auto-fit, 100px);
-}
-.one {
-  width: 200px;
-}
-.two {
-  width: 200px;
-}
-.three {
-  width: 200px;
-}
-.four {
-  width: 150px;
-}
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<p>min-width larger than intrinsic-width:
-<div class="grid one">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>min-width smaller than intrinsic-width:
-<div class="grid two">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>max-width ignored since min-width is larger:
-<div class="grid three">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>min-width shrinks grid since it overrides intrinsic-width:
-<div class="grid four">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026.html
deleted file mode 100644
index 100f542b783..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-026.html
+++ /dev/null
@@ -1,61 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid auto-fit, min- max- size interactions</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-026-ref.html">
-<meta name="assert" content="auto-fit columns, with intrinsic-size interacting with min- and max- width">
-
-<style>
-.grid {
-  display: inline-grid;
-  border: 1px solid black;
-  grid-template-columns: repeat(auto-fit, 100px);
-}
-.one {
-  intrinsic-width: 100px;
-  min-width: 200px;
-}
-.two {
-  intrinsic-width: 200px;
-  min-width: 100px;
-}
-.three {
-  intrinsic-width: 100px;
-  min-width: 200px;
-  max-width: 150px;
-}
-.four {
-  intrinsic-width: 200px;
-  min-width: 100px;
-  max-width: 150px;
-}
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<p>min-width larger than intrinsic-width:
-<div class="grid one">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>min-width smaller than intrinsic-width:
-<div class="grid two">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>max-width ignored since min-width is larger:
-<div class="grid three">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
-
-<p>min-width shrinks grid since it overrides intrinsic-width:
-<div class="grid four">
-  <div class="item">one</div>
-  <div class="item">two</div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001-ref.html
deleted file mode 100644
index 99e86d0c38f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001-ref.html
+++ /dev/null
@@ -1,37 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-body > div {
-  box-sizing: content-box;
-  border: 1px solid black;
-  width: max-content;
-  height: 111px;
-}
-#one {
-  overflow: hidden;
-  width: 0px;
-}
-#two {
-  overflow-x: scroll;
-  height: auto;
-}
-#two > div {
-  height: 111px;
-}
-#three {
-  height: auto;
-}
-#three > div {
-  height: 111px;
-}
-</style>
-
-<div id=one></div>
-<br>
-<div id=two><div></div></div>
-<br>
-<div id=three><div>Lorem ipsum</div></div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001.html
deleted file mode 100644
index 9c2dac07da2..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-001.html
+++ /dev/null
@@ -1,34 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-auto-001-ref.html">
-<meta name="assert" content="intrinsic-size auto is treated as 0 when overflow is not 'visible'">
-
-<style>
-div {
-  width: max-content;
-  intrinsic-size: auto 111px;
-  border: 1px solid black;
-}
-#one {
-  overflow: hidden;
-}
-#two {
-  overflow-x: scroll;
-}
-/* We can't have overflow-x: visible without overflow-y not being visible and vice versa
-   (see Computed value in https://www.w3.org/TR/css-overflow-3/#overflow-properties).
-   Hence, we set both overflow directions.
-*/
-#three {
-  overflow: visible;
-}
-</style>
-
-<div id=one>Lorem ipsum</div>
-<br>
-<div id=two>Lorem ipsum</div>
-<br>
-<div id=three>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002-ref.html
deleted file mode 100644
index 70a245469b7..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002-ref.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-body > div {
-  box-sizing: content-box;
-  border: 1px solid black;
-  width: 111px;
-}
-#one {
-  overflow: hidden;
-  height: 0px;
-}
-#two {
-  overflow-y: scroll;
-  width: max-content;
-}
-#two > div {
-  width: 111px;
-}
-</style>
-
-<div id=one></div>
-<br>
-<div id=two><div></div></div>
-<br>
-<div id=three>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002.html
deleted file mode 100644
index 5b3902455bd..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-002.html
+++ /dev/null
@@ -1,34 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-auto-002-ref.html">
-<meta name="assert" content="intrinsic-size auto is treated as 0 when overflow is not 'visible'">
-
-<style>
-div {
-  width: max-content;
-  intrinsic-size: 111px auto;
-  border: 1px solid black;
-}
-#one {
-  overflow: hidden;
-}
-#two {
-  overflow-y: scroll;
-}
-/* We can't have overflow-x: visible without overflow-y not being visible and vice versa
-   (see Computed value in https://www.w3.org/TR/css-overflow-3/#overflow-properties).
-   Hence, we set both overflow directions.
-*/
-#three {
-  overflow: visible;
-}
-</style>
-
-<div id=one>Lorem ipsum</div>
-<br>
-<div id=two>Lorem ipsum</div>
-<br>
-<div id=three>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003-ref.html
deleted file mode 100644
index 246a5bad51e..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003-ref.html
+++ /dev/null
@@ -1,37 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content with auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-img {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#target1 {
-  height: 200px;
-  /* the source img is 320x240, and the intrinsic size only adjusted the height */
-  width: 320px;
-}
-#target2 {
-  width: 100px;
-  /* the source img is 320x240, and the intrinsic size only adjusted the width */
-  height: 240px;
-}
-#target3 {
-  width: 0px;
-  height: 200px;
-  overflow: hidden;
-}
-#target4 {
-  width: 100px;
-  height: 0px;
-  overflow: hidden;
-}
-</style>
-
-<img id=target1 src="resources/dice.png"></img>
-<img id=target2 src="resources/dice.png"></img>
-<img id=target3 src="resources/dice.png"></img>
-<img id=target4 src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003.html
deleted file mode 100644
index 07ec0326787..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-auto-003.html
+++ /dev/null
@@ -1,32 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content with auto</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-auto-003-ref.html">
-<meta name="assert" content="intrinsic-size auto is treated as 0 when overflow is not 'visible'">
-
-<style>
-img {
-  border: 1px solid black;
-}
-#target1 {
-  intrinsic-size: auto 200px;
-}
-#target2 {
-  intrinsic-size: 100px auto;
-}
-#target3 {
-  intrinsic-size: auto 200px;
-  overflow: hidden;
-}
-#target4 {
-  intrinsic-size: 100px auto;
-  overflow: hidden;
-}
-</style>
-
-<img id=target1 src="resources/dice.png"></img>
-<img id=target2 src="resources/dice.png"></img>
-<img id=target3 src="resources/dice.png"></img>
-<img id=target4 src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001-ref.html
deleted file mode 100644
index 39c6abdcf8e..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001-ref.html
+++ /dev/null
@@ -1,15 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#target {
-  background: lightblue;
-  width: max-content;
-  height: 222px;
-}
-</style>
-
-<div id=target>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001.html
deleted file mode 100644
index df662e5c7f1..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-001.html
+++ /dev/null
@@ -1,17 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: intrinsic-width legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-001-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-#target {
-  background: lightblue;
-  width: max-content;
-  intrinsic-size: legacy 222px;
-}
-</style>
-
-<div id=target>Lorem ipsum</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002-ref.html
deleted file mode 100644
index 535915a7a7b..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002-ref.html
+++ /dev/null
@@ -1,41 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex with legacy intrinsic dimensions</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: column;
-  height: 500px;
-}
-.item {
-  width: max-content;
-}
-#one {
-  background: lightblue;
-  flex-grow: 3;
-}
-#one > div {
-  height: 222px;
-}
-#two {
-  background: lightgreen;
-  width: 333px;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  flex-grow: 1;
-}
-#three > div {
-  height: 444px;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one><div>Lorem ipsum</div></div>
-  <div class=item id=two>dolor sit amet</div>
-  <div class=item id=three><div>consectetur adipiscing elit</div></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002.html
deleted file mode 100644
index 66d008ce6ce..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-002.html
+++ /dev/null
@@ -1,39 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: flex with legacy intrinsic dimensions</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-002-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-#flex {
-  display: flex;
-  flex-direction: column;
-  height: 500px;
-}
-.item {
-  width: max-content;
-}
-#one {
-  background: lightblue;
-  intrinsic-size: legacy 222px;
-  flex-grow: 3;
-}
-#two {
-  background: lightgreen;
-  intrinsic-size: 333px legacy;
-  flex-grow: 2;
-}
-#three {
-  background: lightgrey;
-  intrinsic-size: legacy 444px;
-  flex-grow: 1;
-}
-</style>
-
-<div id=flex>
-  <div class=item id=one>Lorem ipsum</div>
-  <div class=item id=two>dolor sit amet</div>
-  <div class=item id=three>consectetur adipiscing elit</div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003-ref.html
deleted file mode 100644
index eb6394fe284..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003-ref.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: select multiple with legacy sizing</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-#one {
-  box-sizing: content-box;
-  height: 222px;
-}
-#two {
-  box-sizing: content-box;
-  width: 111px;
-  overflow: visible;
-}
-</style>
-
-<select multiple id=one></select>
-<select multiple id=two></select>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003.html
deleted file mode 100644
index 90e4f53bf64..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-003.html
+++ /dev/null
@@ -1,20 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: select multiple with legacy sizing</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-003-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-#one {
-  intrinsic-size: legacy 222px;
-}
-#two {
-  intrinsic-size: 111px legacy;
-  overflow: visible;
-}
-</style>
-
-<select multiple id=one></select>
-<select multiple id=two></select>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004-ref.html
deleted file mode 100644
index d5e7c9ff9bb..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004-ref.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-img {
-  border: 1px solid black;
-  box-sizing: content-box;
-}
-#target1 {
-  height: 200px;
-  /* the source img is 320x240, and the intrinsic size only adjusted the height */
-  width: 320px;
-}
-#target2 {
-  width: 100px;
-  /* the source img is 320x240, and the intrinsic size only adjusted the width */
-  height: 240px;
-}
-</style>
-
-<img id=target1 src="resources/dice.png"></img>
-<img id=target2 src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004.html
deleted file mode 100644
index dfeed45d73b..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-004.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: replaced content with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-004-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-img {
-  border: 1px solid black;
-}
-#target1 {
-  intrinsic-size: legacy 200px;
-}
-#target2 {
-  intrinsic-size: 100px legacy;
-}
-</style>
-
-<img id=target1 src="resources/dice.png"></img>
-<img id=target2 src="resources/dice.png"></img>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005-ref.html
deleted file mode 100644
index c23984f5f1a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005-ref.html
+++ /dev/null
@@ -1,36 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  box-sizing: content-box;
-  width: 70px;
-  height: 80px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005.html
deleted file mode 100644
index baf9bef3aca..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-005.html
+++ /dev/null
@@ -1,44 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-005-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  intrinsic-size: legacy 80px;
-  width: 70px;
-}
-.two {
-  intrinsic-size: 70px legacy;
-  height: 80px;
-  width: min-content;
-}
-.item {
-  background: lightgreen;
-  opacity: 0.5;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006-ref.html
deleted file mode 100644
index 9b9e25d3c8d..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006-ref.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 1fr 2fr / 3fr 4fr;
-  box-sizing: content-box;
-  width: 70px;
-  height: 80px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006.html
deleted file mode 100644
index 41ef1fddc19..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-006.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-006-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 1fr 2fr / 3fr 4fr;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  intrinsic-size: legacy 80px;
-  width: 70px;
-}
-.two {
-  intrinsic-size: 70px legacy;
-  width: min-content;
-  height: 80px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007-ref.html
deleted file mode 100644
index 6894b4643ad..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007-ref.html
+++ /dev/null
@@ -1,35 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size, large size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  box-sizing: content-box;
-  width: 200px;
-  height: 300px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class=grid>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007.html
deleted file mode 100644
index df2c57b5d8a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-007.html
+++ /dev/null
@@ -1,43 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid definite size, large size with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-007-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  grid-template: 55px 66px / 77px 88px;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  intrinsic-size: legacy 300px;
-  width: 200px;
-}
-.two {
-  intrinsic-size: 200px legacy;
-  width: max-content;
-  height: 300px;
-}
-.item {
-  background: lightgreen;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008-ref.html
deleted file mode 100644
index 5cce1902759..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008-ref.html
+++ /dev/null
@@ -1,80 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size, auto-fit with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  width: 70px;
-  height: 80px;
-  box-sizing: content-box;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  grid-template: repeat(auto-fit, 10px) / 3fr 4fr;
-}
-.two {
-  grid-template: 1fr 2fr / repeat(auto-fit, 15px);
-}
-.three {
-  grid-template: repeat(auto-fit, 10px) / repeat(auto-fit, 15px);
-}
-
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid one">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008.html
deleted file mode 100644
index 45b8fbdd244..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/intrinsic-size-with-legacy-008.html
+++ /dev/null
@@ -1,87 +0,0 @@
-<!doctype html>
-<meta charset="utf8">
-<title>CSS intrinsic-size: grid indefinite size, auto-fit with legacy</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<link rel="match" href="intrinsic-size-with-legacy-008-ref.html">
-<meta name="assert" content="intrinsic-size legacy is treated the same as if it was not specified.">
-
-<style>
-.grid {
-  border: 3px solid black;
-  display: grid;
-  background: lightblue;
-  grid-gap: 5px;
-}
-.one {
-  grid-template: repeat(auto-fit, 10px) / 3fr 4fr;
-}
-.two {
-  grid-template: 1fr 2fr / repeat(auto-fit, 15px);
-}
-.three {
-  grid-template: repeat(auto-fit, 10px) / repeat(auto-fit, 15px);
-}
-.width {
-  intrinsic-size: 70px legacy;
-  width: max-content;
-  height: 80px;
-}
-.height {
-  intrinsic-size: legacy 80px;
-  width: 70px;
-}
-.item {
-  background: green;
-  height: 100%;
-}
-</style>
-
-<div class="grid one width">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two width">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three width">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid one height">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid two height">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
-<div class="grid three height">
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-  <div class=item></div>
-</div>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-computed.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-computed.html
deleted file mode 100644
index e9a073ca2aa..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-computed.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-block-size with computed values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-block-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-</head>
-<body>
-<div id=target></div>
-<div id=scratch></div>
-<script>
-
-function length_ref(length) {
-  document.getElementById("scratch").style.width = length;
-  return getComputedStyle(document.getElementById("scratch")).getPropertyValue("width");
-}
-
-test_computed_value("intrinsic-block-size", "auto");
-test_computed_value("intrinsic-block-size", "legacy");
-test_computed_value("intrinsic-block-size", "1px");
-test_computed_value("intrinsic-block-size", "2vw", length_ref("2vw"));
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-invalid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-invalid.html
deleted file mode 100644
index 1b6cba20f88..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-invalid.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-block-size with invalid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-block-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value("intrinsic-block-size", "none");
-test_invalid_value("intrinsic-block-size", "10%");
-test_invalid_value("intrinsic-block-size", "-1px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-valid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-valid.html
deleted file mode 100644
index b34c73b230f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-block-size-valid.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-block-size with valid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-block-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value("intrinsic-block-size", "auto");
-test_valid_value("intrinsic-block-size", "legacy");
-test_valid_value("intrinsic-block-size", "1px");
-test_valid_value("intrinsic-block-size", "2vw");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-computed.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-computed.html
deleted file mode 100644
index 6f95274c637..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-computed.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-height with computed values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-height supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-</head>
-<body>
-<div id=target></div>
-<div id=scratch></div>
-<script>
-
-function length_ref(length) {
-  document.getElementById("scratch").style.width = length;
-  return getComputedStyle(document.getElementById("scratch")).getPropertyValue("width");
-}
-
-test_computed_value("intrinsic-height", "auto");
-test_computed_value("intrinsic-height", "legacy");
-test_computed_value("intrinsic-height", "1px");
-test_computed_value("intrinsic-height", "2vw", length_ref("2vw"));
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-invalid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-invalid.html
deleted file mode 100644
index 1f801124a2b..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-invalid.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-height with invalid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-height supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value("intrinsic-height", "none");
-test_invalid_value("intrinsic-height", "10%");
-test_invalid_value("intrinsic-height", "-1px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-valid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-valid.html
deleted file mode 100644
index e4614762118..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-height-valid.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-height with valid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-height supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value("intrinsic-height", "auto");
-test_valid_value("intrinsic-height", "legacy");
-test_valid_value("intrinsic-height", "1px");
-test_valid_value("intrinsic-height", "2vw");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-computed.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-computed.html
deleted file mode 100644
index c53a77e5631..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-computed.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-inline-size with computed values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-inline-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-</head>
-<body>
-<div id=target></div>
-<div id=scratch></div>
-<script>
-
-function length_ref(length) {
-  document.getElementById("scratch").style.width = length;
-  return getComputedStyle(document.getElementById("scratch")).getPropertyValue("width");
-}
-
-test_computed_value("intrinsic-inline-size", "auto");
-test_computed_value("intrinsic-inline-size", "legacy");
-test_computed_value("intrinsic-inline-size", "1px");
-test_computed_value("intrinsic-inline-size", "2vw", length_ref("2vw"));
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-invalid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-invalid.html
deleted file mode 100644
index 6ad224d11d3..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-invalid.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-inline-size with invalid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-inline-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value("intrinsic-inline-size", "none");
-test_invalid_value("intrinsic-inline-size", "10%");
-test_invalid_value("intrinsic-inline-size", "-1px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-valid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-valid.html
deleted file mode 100644
index ad5aef95dca..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-inline-size-valid.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-inline-size with valid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-inline-size supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value("intrinsic-inline-size", "auto");
-test_valid_value("intrinsic-inline-size", "legacy");
-test_valid_value("intrinsic-inline-size", "1px");
-test_valid_value("intrinsic-inline-size", "2vw");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-computed.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-computed.html
deleted file mode 100644
index 29be33d4a3d..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-computed.html
+++ /dev/null
@@ -1,38 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-size with computed values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-size supports the full grammar '[auto | legacy | <length>]{1,2}'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-</head>
-<body>
-<div id=target></div>
-<div id=scratch></div>
-<script>
-
-function length_ref(length) {
-  document.getElementById("scratch").style.width = length;
-  return getComputedStyle(document.getElementById("scratch")).getPropertyValue("width");
-}
-
-test_computed_value("intrinsic-size", "auto");
-test_computed_value("intrinsic-size", "legacy");
-test_computed_value("intrinsic-size", "legacy auto");
-test_computed_value("intrinsic-size", "auto legacy");
-test_computed_value("intrinsic-size", "1px");
-test_computed_value("intrinsic-size", "1px auto");
-test_computed_value("intrinsic-size", "1px legacy");
-test_computed_value("intrinsic-size", "auto 1px");
-test_computed_value("intrinsic-size", "legacy 1px");
-test_computed_value("intrinsic-size", "2vw 3px", length_ref("2vw") + " 3px");
-test_computed_value("intrinsic-size", "2px 3vh", "2px " + length_ref("3vh"));
-test_computed_value("intrinsic-size", "5px 5px", "5px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-invalid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-invalid.html
deleted file mode 100644
index b4cb2dbffd2..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-invalid.html
+++ /dev/null
@@ -1,24 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-size with invalid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-size supports the full grammar '[auto | legacy | <length>]{1,2}'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value("intrinsic-size", "auto legacy auto");
-test_invalid_value("intrinsic-size", "10%");
-test_invalid_value("intrinsic-size", "2em 3px 5px");
-test_invalid_value("intrinsic-size", "1px 1%");
-test_invalid_value("intrinsic-size", "1px auto auto");
-test_invalid_value("intrinsic-size", "-1px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-sets-computed-dimensions.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-sets-computed-dimensions.html
deleted file mode 100644
index e70c3179223..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-sets-computed-dimensions.html
+++ /dev/null
@@ -1,61 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-size sets component dimensions.</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-size sets component dimensions.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-<style>
-#horizontal-target {
-  writing-mode: horizontal-tb;
-}
-#vertical-target {
-  writing-mode: vertical-rl;
-}
-</style>
-</head>
-<body>
-<div id=horizontal-target></div>
-<div id=vertical-target></div>
-<script>
-
-const horizontal = document.getElementById("horizontal-target");
-const vertical = document.getElementById("vertical-target");
-
-function runTest() {
-  const horizontal_style = getComputedStyle(horizontal);
-  const vertical_style = getComputedStyle(vertical);
-  test(() => {
-    assert_equals(horizontal_style["intrinsic-width"], "1px");
-    assert_equals(vertical_style["intrinsic-width"], "1px");
-  }, 'intrinsic-width set correctly');
-
-  test(() => {
-    assert_equals(horizontal_style["intrinsic-height"], "2px");
-    assert_equals(vertical_style["intrinsic-height"], "2px");
-  }, 'intrinsic-height set correctly');
-
-  test(() => {
-    assert_equals(horizontal_style["intrinsic-inline-size"], "1px");
-    assert_equals(vertical_style["intrinsic-inline-size"], "2px");
-  }, 'intrinsic-inline-size set correctly');
-
-  test(() => {
-    assert_equals(horizontal_style["intrinsic-block-size"], "2px");
-    assert_equals(vertical_style["intrinsic-block-size"], "1px");
-  }, 'intrinsic-block-size set correctly');
-}
-
-window.onload = () => {
-  horizontal.style["intrinsic-size"] = "1px 2px";
-  vertical.style["intrinsic-size"] = "1px 2px";
-  runTest();
-};
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-valid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-valid.html
deleted file mode 100644
index 7ab13c7d798..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-size-valid.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-size with valid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-size supports the full grammar '[auto | legacy | <length>]{1,2}'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value("intrinsic-size", "auto");
-test_valid_value("intrinsic-size", "legacy");
-test_valid_value("intrinsic-size", "auto legacy");
-test_valid_value("intrinsic-size", "auto auto", "auto");
-test_valid_value("intrinsic-size", "legacy legacy", "legacy");
-test_valid_value("intrinsic-size", "1px");
-test_valid_value("intrinsic-size", "2em 3px");
-test_valid_value("intrinsic-size", "5px 5px", "5px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-computed.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-computed.html
deleted file mode 100644
index 08602e5347f..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-computed.html
+++ /dev/null
@@ -1,30 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-width with computed values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-width supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/computed-testcommon.js"></script>
-</head>
-<body>
-<div id=target></div>
-<div id=scratch></div>
-<script>
-
-function length_ref(length) {
-  document.getElementById("scratch").style.width = length;
-  return getComputedStyle(document.getElementById("scratch")).getPropertyValue("width");
-}
-
-test_computed_value("intrinsic-width", "auto");
-test_computed_value("intrinsic-width", "legacy");
-test_computed_value("intrinsic-width", "1px");
-test_computed_value("intrinsic-width", "2vw", length_ref("2vw"));
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-invalid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-invalid.html
deleted file mode 100644
index b89f6567ae2..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-invalid.html
+++ /dev/null
@@ -1,21 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-width with invalid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-width supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_invalid_value("intrinsic-width", "none");
-test_invalid_value("intrinsic-width", "10%");
-test_invalid_value("intrinsic-width", "-1px");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-valid.html b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-valid.html
deleted file mode 100644
index e2d23eabe5d..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/parsing/intrinsic-width-valid.html
+++ /dev/null
@@ -1,22 +0,0 @@
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="utf-8">
-<title>CSS Intrinsic Size Test: intrinsic-width with valid values</title>
-<link rel="author" title="Vladimir Levin" href="mailto:vmpstr@chromium.org">
-<link rel="help" href="https://drafts.csswg.org/css-sizing-4/#intrinsic-size-override">
-<meta name="assert" content="intrinsic-width supports the full grammar 'auto | legacy | <length>'.">
-<script src="/resources/testharness.js"></script>
-<script src="/resources/testharnessreport.js"></script>
-<script src="/css/support/parsing-testcommon.js"></script>
-</head>
-<body>
-<script>
-test_valid_value("intrinsic-width", "auto");
-test_valid_value("intrinsic-width", "legacy");
-test_valid_value("intrinsic-width", "1px");
-test_valid_value("intrinsic-width", "2vw");
-</script>
-</body>
-</html>
-
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/resources/dice.png b/tests/wpt/web-platform-tests/css/css-sizing/intrinsic-size/resources/dice.png
deleted file mode 100644
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diff --git a/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001-ref.html b/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001-ref.html
deleted file mode 100644
index a4e7f1ece46..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001-ref.html
+++ /dev/null
@@ -1,16 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>CSS Sizing: Test that percentages don't resolve against min-content</title>
-<link rel="author" title="Google Inc." href="https://www.google.com/" />
-
-<style>
-.inner {
-  background-color: green;
-}
-</style>
-
-<body>
-  <div class="outer">
-    <div class="inner">This should be a single-line green background with no red visible.</div>
-  </div>
-</body>
diff --git a/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001.html b/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001.html
deleted file mode 100644
index b2cc727ca7a..00000000000
--- a/tests/wpt/web-platform-tests/css/css-sizing/percentage-resolution-001.html
+++ /dev/null
@@ -1,26 +0,0 @@
-<!DOCTYPE html>
-<meta charset="utf-8">
-<title>CSS Sizing: Test that percentages don't resolve against min-content</title>
-<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#percentage-sizing" />
-<link rel="author" title="Google Inc." href="https://www.google.com/" />
-<link rel="match" href="percentage-resolution-001-ref.html" />
-
-<style>
-.outer {
-  min-height: min-content;
-  max-height: min-content;
-  height: 500px;
-  background-color: red;
-}
-
-.inner {
-  height: 50%;
-  background-color: green;
-}
-</style>
-
-<body>
-  <div class="outer">
-    <div class="inner">This should be a single-line green background with no red visible.</div>
-  </div>
-</body>
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
index 4154e5e1181..948b728254a 100644
--- a/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/hyphens-overflow-001.html
@@ -9,7 +9,6 @@ div {
   font-size: 10px;
   font-family: Ahem;
   width: 5.1ch;
-  border: 1px solid blue;
 }
 </style>
 <body>
@@ -19,7 +18,4 @@ div {
   <div>1234&shy;xx</div>
   <div>12345&shy;xx</div>
   <div>123456&shy;xx</div>
-
-  <div style="width: 10ch"><span>ren&shy;for&shy;cer</span>99999</div>
-  <div><span>00&shy;1</span>222</div>
 </body>
diff --git a/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
index db002ce45d8..08d521d3396 100644
--- a/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
+++ b/tests/wpt/web-platform-tests/css/css-text/hyphens/reference/hyphens-overflow-001-ref.html
@@ -4,8 +4,6 @@
 div {
   font-size: 10px;
   font-family: Ahem;
-  width: 5.1ch;
-  border: 1px solid blue;
 }
 </style>
 <body>
@@ -15,7 +13,4 @@ div {
   <div>1234-<br>xx</div>
   <div>12345-<br>xx</div>
   <div>123456-<br>xx</div>
-
-  <div style="width: 10ch">renfor-<br>cer99999</div>
-  <div>00-<br>1222</div>
 </body>
diff --git a/tests/wpt/web-platform-tests/css/css-values/animations/calc-interpolation.html b/tests/wpt/web-platform-tests/css/css-values/animations/calc-interpolation.html
new file mode 100644
index 00000000000..de76386e0da
--- /dev/null
+++ b/tests/wpt/web-platform-tests/css/css-values/animations/calc-interpolation.html
@@ -0,0 +1,97 @@
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>calc interpolation</title>
+<link rel="help" href="https://drafts.csswg.org/css-values-3/#calc-notation">
+<meta name="assert" content="calc supports animation by computed value">
+
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/css/support/interpolation-testcommon.js"></script>
+
+<style>
+.container {
+  position: relative;
+  width: 50px;
+  height: 50px;
+  border: black solid 2px;
+  display: inline-block;
+  margin-left: 10px;
+  margin-right: 10px;
+  background-color: white;
+}
+.target {
+  position: absolute;
+  width: 10px;
+  height: 50px;
+  background-color: black;
+}
+.expected {
+  background-color: green;
+}
+</style>
+
+<body>
+<template id="target-template">
+  <div class="container">
+    <div class="target"></div>
+  </div>
+</template>
+<script>
+test_interpolation({
+  property: 'left',
+  from: 'calc(50% - 25px)',
+  to: 'calc(100% - 10px)'
+}, [
+  {at: -0.25, expect: '-10px'},
+  {at: 0, expect: '0px'},
+  {at: 0.25, expect: '10px'},
+  {at: 0.5, expect: '20px'},
+  {at: 0.75, expect: '30px'},
+  {at: 1, expect: '40px'},
+  {at: 1.25, expect: '50px'}
+]);
+
+test_interpolation({
+  property: 'text-indent',
+  from: 'calc(50% - 25px)',
+  to: 'calc(100% - 10px)'
+}, [
+  {at: -0.25, expect: 'calc(((50% - 25px) * 1.25) + ((100% - 10px) * -0.25))'},
+  {at: 0, expect: 'calc(50% - 25px)'},
+  {at: 0.25, expect: 'calc(((50% - 25px) * 0.75) + ((100% - 10px) * 0.25))'},
+  {at: 0.5, expect: 'calc(((50% - 25px) * 0.5) + ((100% - 10px) * 0.5))'},
+  {at: 0.75, expect: 'calc(((50% - 25px) * 0.25) + ((100% - 10px) * 0.75))'},
+  {at: 1, expect: 'calc(100% - 10px)'},
+  {at: 1.25, expect: 'calc(((50% - 25px) * -0.25) + ((100% - 10px) * 1.25))'}
+]);
+
+test_interpolation({
+  property: 'text-indent',
+  from: '0em',
+  to: '100px'
+}, [
+  {at: -0.25, expect: '-25px'},
+  {at: 0, expect: '0em'},
+  {at: 0.25, expect: '25px'},
+  {at: 0.5, expect: '50px'},
+  {at: 0.75, expect: '75px'},
+  {at: 1, expect: '100px'},
+  {at: 1.25, expect: '125px'}
+]);
+
+test_interpolation({
+  property: 'text-indent',
+  from: '0%',
+  to: '100px'
+}, [
+  {at: -0.25, expect: 'calc(0% + -25px)'},
+  {at: 0, expect: '0%'},
+  {at: 0.25, expect: 'calc(0% + 25px)'},
+  {at: 0.5, expect: 'calc(0% + 50px)'},
+  {at: 0.75, expect: 'calc(0% + 75px)'},
+  {at: 1, expect: 'calc(0% + 100px)'},
+  {at: 1.25, expect: 'calc(0% + 125px)'}
+]);
+
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js b/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
index 3c9754c6941..d1cb7cfbeb0 100644
--- a/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
+++ b/tests/wpt/web-platform-tests/css/support/interpolation-testcommon.js
@@ -18,6 +18,7 @@
 
   var cssAnimationsInterpolation = {
     name: 'CSS Animations',
+    isSupported: function() {return true;},
     supportsProperty: function() {return true;},
     supportsValue: function() {return true;},
     setup: function() {},
@@ -43,6 +44,7 @@
 
   var cssTransitionsInterpolation = {
     name: 'CSS Transitions',
+    isSupported: function() {return true;},
     supportsProperty: function() {return true;},
     supportsValue: function() {return true;},
     setup: function(property, from, target) {
@@ -64,6 +66,7 @@
 
   var cssTransitionAllInterpolation = {
     name: 'CSS Transitions with transition: all',
+    isSupported: function() {return true;},
     // The 'all' value doesn't cover custom properties.
     supportsProperty: function(property) {return property.indexOf('--') !== 0;},
     supportsValue: function() {return true;},
@@ -86,6 +89,7 @@
 
   var webAnimationsInterpolation = {
     name: 'Web Animations',
+    isSupported: function() {return 'animate' in Element.prototype;},
     supportsProperty: function(property) {return true;},
     supportsValue: function(value) {return value !== '';},
     setup: function() {},
@@ -96,6 +100,10 @@
       this.interpolateComposite(property, from, 'replace', to, 'replace', at, target);
     },
     interpolateComposite: function(property, from, fromComposite, to, toComposite, at, target) {
+      // This case turns into a test error later on.
+      if (!this.isSupported())
+        return;
+
       // Convert standard properties to camelCase.
       if (!property.startsWith('--')) {
         for (var i = property.length - 2; i > 0; --i) {
@@ -272,6 +280,8 @@
       target.measure = function() {
         var expectedValue = getComputedStyle(expectedTargetContainer.target).getPropertyValue(property);
         test(function() {
+          assert_true(interpolationMethod.isSupported(), `${interpolationMethod.name} should be supported`);
+
           if (from && from !== neutralKeyframe) {
             assert_true(CSS.supports(property, from), '\'from\' value should be supported');
           }
diff --git a/tests/wpt/web-platform-tests/docs/writing-tests/reftests.md b/tests/wpt/web-platform-tests/docs/writing-tests/reftests.md
index 845d6f8dc4f..6dbe3a1aa9d 100644
--- a/tests/wpt/web-platform-tests/docs/writing-tests/reftests.md
+++ b/tests/wpt/web-platform-tests/docs/writing-tests/reftests.md
@@ -96,16 +96,31 @@ leaf nodes.)
 
 ## Controlling When Comparison Occurs
 
-By default reftest screenshots are taken after the `load` event has
-fired, and web fonts (if any) are loaded. In some cases it is
-necessary to delay the screenshot later than this, for example because
-some DOM manipulation is required to set up the desired test
-conditions. To enable this, the test may have a `class="reftest-wait"`
-attribute specified on the root element. This will cause the
-screenshot to be delayed until the `load` event has fired and the
-`reftest-wait` class has been removed from the root element. Note that
-in neither case is exact timing of the screenshot guaranteed: it is
-only guaranteed to be after those events.
+By default, reftest screenshots are taken after the following
+conditions are met:
+
+* The `load` event has fired
+* Web fonts (if any) are loaded
+* Pending paints have completed
+
+In some cases it is necessary to delay the screenshot later than this,
+for example because some DOM manipulation is required to set up the
+desired test conditions. To enable this, the test may have a
+`class="reftest-wait"` attribute specified on the root element. In
+this case the harness will run the following sequence of steps:
+
+* Wait for the `load` event to fire and fonts to load.
+* Wait for pending paints to complete.
+* Fire an event named `TestRendered` at the root element, with the
+  `bubbles` attribute set to true.
+* Wait for the `reftest-wait` class to be removed from the root
+  element.
+* Wait for pending paints to complete.
+* Screenshot the viewport.
+
+The `TestRendered` event provides a hook for tests to make
+modifications to the test document that are not batched into the
+initial layout/paint.
 
 ## Fuzzy Matching
 
diff --git a/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html b/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html
new file mode 100644
index 00000000000..d572dcb0465
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html
@@ -0,0 +1,32 @@
+<!DOCTYPE html>
+<body>
+<script>
+// This document will contain an iframe which will either host echo-policy.py,
+// or will host another copy of this document, with the nesting level reduced
+// by one. This way, an arbitrary nesting depth can be achieved, with the
+// final inner-most frame reporting back the advertised required policy.
+
+// The 'id' URL parameter will be passed to the nested document.
+// The 'level' URL paramater will be reduced by 1 and passed to the nested
+// document if it was at least 1. (If it was 0, then echo-policy.py will be
+// nested instead, and the level parameter will not be passed.)
+
+// This document is served with a Document Policy header that should satisfy
+// any requests that include a required policy for the
+// 'unoptimized-lossless-images' feature.
+const params = new URLSearchParams(window.location.search);
+const id = params.get('id');
+const level = params.get('level');
+
+const iframe = document.createElement('iframe');
+var hostname;
+if (level >= 1) {
+  params.set('level',level-1);
+  hostname = document.location.pathname + "?" + params.toString();
+} else {
+  params.delete('level');
+  hostname = "/document-policy/echo-policy.py?" + params.toString();
+}
+iframe.src = hostname;
+document.body.appendChild(iframe);
+</script>
diff --git a/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html.headers b/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html.headers
new file mode 100644
index 00000000000..fe839ef5bb6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/echo-policy-nested.html.headers
@@ -0,0 +1 @@
+Document-Policy: unoptimized-lossless-images;bpp=0.0
diff --git a/tests/wpt/web-platform-tests/document-policy/echo-policy.py b/tests/wpt/web-platform-tests/document-policy/echo-policy.py
new file mode 100644
index 00000000000..52a2bf97124
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/echo-policy.py
@@ -0,0 +1,28 @@
+# This will echo the 'Sec-Required-Document-Policy' request header in the body
+# of the response, as well as in the 'Document-Policy' response header (to
+# ensure the response is loaded by a user agent which is implementing document
+# policy.)
+import json
+
+def main(request, response):
+    msg = {}
+    headers = [('Content-Type', 'text/html')]
+
+    srdp = request.headers.get('Sec-Required-Document-Policy')
+    if srdp:
+      msg['requiredPolicy'] = srdp
+      headers.append(('Document-Policy', srdp))
+
+    frameId = request.GET.first('id',None)
+    if frameId:
+      msg['id'] = frameId
+
+    content = """<!DOCTYPE html>
+<script>
+top.postMessage(%s, "*");
+</script>
+%s
+""" % (json.dumps(msg), srdp)
+
+    return (200, 'OK'), headers, content
+
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html b/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html
new file mode 100644
index 00000000000..d6bf3e9a6d4
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html
@@ -0,0 +1,54 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test advertised required document policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>  </head>
+  <body>
+    <h1>Test advertised required document policy</h1>
+<script>
+// The top-level document has a document policy, but not a required document
+// policy. A request for a document in a frame should not include a
+// `Sec-Required-Document-Policy` header, unless that frame requires it
+// explicitly through the `policy` attribute.
+
+callbacks = {};
+
+window.addEventListener('message', ev => {
+  var id = ev.data.id;
+  if (id && callbacks[id]) {
+    callbacks[id](ev.data.requiredPolicy || null);
+  }
+});
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=1";
+  callbacks["1"] = t.step_func_done(result => {
+    assert_equals(result, null);
+  });
+  document.body.appendChild(iframe);
+}, "Top-level document's policy should not affect child frame requests");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=2";
+  iframe.policy = "no-font-display-late-swap";
+  callbacks["2"] = t.step_func_done(result => {
+    assert_equals(result, "no-font-display-late-swap");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame can have a required policy independent of the parent document.");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=3";
+  iframe.policy = "unoptimized-lossless-images;bpp=4";
+  callbacks["3"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=4");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame can have a required policy which is less strict than the parent document's policy.");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html.headers b/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html.headers
new file mode 100644
index 00000000000..d321c265d15
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/document-policy.html.headers
@@ -0,0 +1 @@
+Document-Policy: unoptimized-lossless-images;bpp=1.1
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/no-document-policy.html b/tests/wpt/web-platform-tests/document-policy/required-policy/no-document-policy.html
new file mode 100644
index 00000000000..9af2e51c2ac
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/no-document-policy.html
@@ -0,0 +1,44 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test advertised required document policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>  </head>
+  <body>
+    <h1>Test advertised required document policy</h1>
+<script>
+// The top-level document does not have any document-policy-related headers.
+// A request for a document in a frame should not include a
+// `Sec-Required-Document-Policy` header, unless that frame requires it
+// explicitly through the `policy` attribute.
+
+callbacks = {};
+
+window.addEventListener('message', ev => {
+  var id = ev.data.id;
+  if (id && callbacks[id]) {
+    callbacks[id](ev.data.requiredPolicy || null);
+  }
+});
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=1";
+  callbacks["1"] = t.step_func_done(result => {
+    assert_equals(result, null);
+  });
+  document.body.appendChild(iframe);
+}, "Child frame should have no required policy by default.");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=2";
+  iframe.policy = "no-font-display-late-swap";
+  callbacks["2"] = t.step_func_done(result => {
+    assert_equals(result, "no-font-display-late-swap");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame can have an explicit required policy.");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy-nested.html b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy-nested.html
new file mode 100644
index 00000000000..39e2a92f773
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy-nested.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test advertised required document policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>  </head>
+  <body>
+    <h1>Test advertised required document policy</h1>
+<script>
+// The top-level document has no required document policy. Its child frames may,
+// though, and those policies should be set for any subframes.
+
+callbacks = {};
+
+window.addEventListener('message', ev => {
+  var id = ev.data.id;
+  if (id && callbacks[id]) {
+    callbacks[id](ev.data.requiredPolicy || null);
+  }
+});
+
+// Frame tree should be:
+// Top:
+//  <iframe>
+//    <iframe>
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy-nested.html?id=1";
+  callbacks["1"] = t.step_func_done(result => {
+    assert_equals(result, null);
+  });
+  document.body.appendChild(iframe);
+}, "test nested required document policy");
+
+// Frame tree should be:
+// Top:
+//  <iframe policy="unoptimized-lossless-images;bpp=1.1">
+//    <iframe>
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy-nested.html?id=2";
+  iframe.policy = "unoptimized-lossless-images;bpp=1.1";
+  callbacks["2"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=1.1");
+  });
+  document.body.appendChild(iframe);
+}, "test nested required document policy when set by nested frame");
+
+// Frame tree should be:
+// Top:
+//  <iframe policy="unoptimized-lossless-images;bpp=1.1">
+//    <iframe>
+//      <iframe>
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy-nested.html?id=3&level=1";
+  iframe.policy = "unoptimized-lossless-images;bpp=1.1";
+  callbacks["3"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=1.1");
+  });
+  document.body.appendChild(iframe);
+}, "test nested required document policy when set by intermediate nested frame");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html
new file mode 100644
index 00000000000..12cebdd292a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html
@@ -0,0 +1,65 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <title>Test advertised required document policy</title>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>  </head>
+  <body>
+    <h1>Test advertised required document policy</h1>
+<script>
+// The top-level document has a required document policy. Any requests for
+// documents in child frames must be sent with a required policy header
+// indicating a required policy at least as strict. (In this case, "at least as
+// strict" means that the 'bpp' parameter must be less than or equal to the
+// parent document's required value.)
+
+callbacks = {};
+
+window.addEventListener('message', ev => {
+  var id = ev.data.id;
+  if (id && callbacks[id]) {
+    callbacks[id](ev.data.requiredPolicy || null);
+  }
+});
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=1";
+  callbacks["1"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=1.1");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame with no explicit policy should have the same required policy as its parent.");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=2";
+  iframe.policy = "unoptimized-lossless-images;bpp=4";
+  callbacks["2"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=1.1");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame with a less strict required policy should have the stricter value from the parent's policy applied.");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=3";
+  iframe.policy = "unoptimized-lossless-images;bpp=1.0";
+  callbacks["3"] = t.step_func_done(result => {
+    assert_equals(result, "unoptimized-lossless-images;bpp=1.0");
+  });
+  document.body.appendChild(iframe);
+}, "Child frame may have a stricter policy than the parent.");
+
+async_test(t => {
+  var iframe = document.createElement('iframe');
+  iframe.src = "/document-policy/echo-policy.py?id=4";
+  iframe.policy = "no-font-display-late-swap";
+  callbacks["4"] = t.step_func_done(result => {
+    assert_equals(result, "no-font-display-late-swap, unoptimized-lossless-images;bpp=1.1");
+  });
+  document.body.appendChild(iframe);
+}, "Any unrelated policy directives should combine with the parent's required policy.");
+    </script>
+  </body>
+</html>
diff --git a/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html.headers b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html.headers
new file mode 100644
index 00000000000..066c0f8339e
--- /dev/null
+++ b/tests/wpt/web-platform-tests/document-policy/required-policy/required-document-policy.html.headers
@@ -0,0 +1 @@
+Required-Document-Policy: unoptimized-lossless-images;bpp=1.1
diff --git a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-redispatch.html b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-redispatch.html
index 4027587bff4..dc180c61567 100644
--- a/tests/wpt/web-platform-tests/dom/events/Event-dispatch-redispatch.html
+++ b/tests/wpt/web-platform-tests/dom/events/Event-dispatch-redispatch.html
@@ -3,26 +3,128 @@
 <title>EventTarget#dispatchEvent(): redispatching a native event</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<button>click me!</button>
 <div id=log></div>
 <script>
-async_test(function() {
-  var event;
-  document.addEventListener("DOMContentLoaded", this.step_func(function(e) {
-    assert_true(e.isTrusted, "Should be trusted when first handled");
-    event = e;
-  }), true);
+var test_contentLoaded_redispatching = async_test("Redispatching DOMContentLoaded event after being dispatched");
+var test_mouseup_redispatching = async_test("Redispatching mouseup event whose default action dispatches a click event");
+var test_redispatching_of_dispatching_event = async_test("Redispatching event which is being dispatched");
 
-  window.onload = this.step_func_done(function() {
-    var received = 0;
-    var target = document.createElement("span");
-    target.addEventListener("DOMContentLoaded", this.step_func(function(e) {
-      assert_false(e.isTrusted, "Should not be trusted during redispatching");
-      ++received;
-    }), true);
-    assert_true(event.isTrusted, "Should be trusted before redispatching");
-    target.dispatchEvent(event);
-    assert_false(event.isTrusted, "Should not be trusted after redispatching");
-    assert_equals(received, 1);
-  });
+var buttonElement = document.querySelector("button");
+var contentLoadedEvent;
+
+var waitForLoad = new Promise(resolve => {
+  window.addEventListener("load", () => { requestAnimationFrame(resolve); }, {capture: false, once: true});
 });
+
+document.addEventListener("DOMContentLoaded", event => {
+  contentLoadedEvent = event;
+  test_redispatching_of_dispatching_event.step(() => {
+    assert_throws("InvalidStateError", () => {
+      document.dispatchEvent(contentLoadedEvent);
+    }, "Trusted DOMContentLoaded event");
+  });
+}, {capture: true, once: true});
+
+window.addEventListener("load", loadEvent => {
+  let untrustedContentLoadedEvent;
+  buttonElement.addEventListener("DOMContentLoaded", event => {
+    untrustedContentLoadedEvent = event;
+    test_contentLoaded_redispatching.step(() => {
+      assert_false(untrustedContentLoadedEvent.isTrusted, "Redispatched DOMContentLoaded event shouldn't be trusted");
+    });
+    test_redispatching_of_dispatching_event.step(() => {
+      assert_throws("InvalidStateError", () => {
+        document.dispatchEvent(untrustedContentLoadedEvent);
+      }, "Untrusted DOMContentLoaded event");
+    });
+  });
+
+  test_contentLoaded_redispatching.step(() => {
+    assert_true(contentLoadedEvent.isTrusted, "Received DOMContentLoaded event should be trusted before redispatching");
+    buttonElement.dispatchEvent(contentLoadedEvent);
+    assert_false(contentLoadedEvent.isTrusted, "Received DOMContentLoaded event shouldn't be trusted after redispatching");
+    assert_true(untrustedContentLoadedEvent !== undefined, "Untrusted DOMContentLoaded event should've been fired");
+    test_contentLoaded_redispatching.done();
+  });
+}, {capture: true, once: true});
+
+async function testMouseUpAndClickEvent() {
+  let mouseupEvent;
+  buttonElement.addEventListener("mouseup", event => {
+    mouseupEvent = event;
+    test_mouseup_redispatching.step(() => {
+      assert_true(mouseupEvent.isTrusted, "First mouseup event should be trusted");
+    });
+    test_redispatching_of_dispatching_event.step(() => {
+      assert_throws("InvalidStateError", () => {
+        buttonElement.dispatchEvent(mouseupEvent);
+      }, "Trusted mouseup event");
+    });
+  }, {once: true});
+
+  let clickEvent;
+  buttonElement.addEventListener("click", event => {
+    clickEvent = event;
+    test_mouseup_redispatching.step(() => {
+      assert_true(clickEvent.isTrusted, "First click event should be trusted");
+    });
+    test_redispatching_of_dispatching_event.step(() => {
+      assert_throws("InvalidStateError", function() {
+        buttonElement.dispatchEvent(event);
+      }, "Trusted click event");
+    });
+    buttonElement.addEventListener("mouseup", event => {
+      test_mouseup_redispatching.step(() => {
+        assert_false(event.isTrusted, "Redispatched mouseup event shouldn't be trusted");
+      });
+      test_redispatching_of_dispatching_event.step(() => {
+        assert_throws("InvalidStateError", function() {
+          buttonElement.dispatchEvent(event);
+        }, "Untrusted mouseup event");
+      });
+    }, {once: true});
+    function onClick() {
+      test_mouseup_redispatching.step(() => {
+        assert_true(false, "click event shouldn't be fired for dispatched mouseup event");
+      });
+    }
+    test_mouseup_redispatching.step(() => {
+      assert_true(mouseupEvent.isTrusted, "Received mouseup event should be trusted before redispatching from click event listener");
+      buttonElement.addEventListener("click", onClick);
+      buttonElement.dispatchEvent(mouseupEvent);
+      buttonElement.removeEventListener("click", onClick);
+      assert_false(mouseupEvent.isTrusted, "Received mouseup event shouldn't be trusted after redispatching");
+      assert_true(clickEvent.isTrusted, "First click event should still be trusted even after redispatching mouseup event");
+    });
+  }, {once: true});
+
+  await waitForLoad;
+  let bounds = buttonElement.getBoundingClientRect();
+  test(() => { assert_true(true); }, `Synthesizing click on button... (button width / height: ${bounds.width} / ${bounds.height})`);
+  new test_driver.Actions()
+      .pointerMove(Math.floor(bounds.width / 5),
+                   Math.floor(bounds.height / 2),
+                   {origin: buttonElement})
+      .pointerDown({button: test_driver.Actions.prototype.ButtonType.LEFT})
+      .pointerUp({button: test_driver.Actions.prototype.ButtonType.LEFT})
+      .send()
+      .then(() => {
+        test_mouseup_redispatching.step(() => {
+          assert_true(clickEvent !== undefined, "mouseup and click events should've been fired");
+        });
+        test_mouseup_redispatching.done();
+        test_redispatching_of_dispatching_event.done();
+      }, (reason) => {
+        test_mouseup_redispatching.step(() => {
+          assert_true(false, `Failed to send mouse click due to ${reason}`);
+        });
+        test_mouseup_redispatching.done();
+        test_redispatching_of_dispatching_event.done();
+      });
+}
+testMouseUpAndClickEvent();
 </script>
diff --git a/tests/wpt/web-platform-tests/fetch/api/cors/cors-preflight-redirect.any.js b/tests/wpt/web-platform-tests/fetch/api/cors/cors-preflight-redirect.any.js
index 5d4de7ebaad..ade38e9ac7b 100644
--- a/tests/wpt/web-platform-tests/fetch/api/cors/cors-preflight-redirect.any.js
+++ b/tests/wpt/web-platform-tests/fetch/api/cors/cors-preflight-redirect.any.js
@@ -18,7 +18,7 @@ function corsPreflightRedirect(desc, redirectUrl, redirectLocation, redirectStat
   urlParameters += "&allow_headers=x-force-preflight";
 
   promise_test(function(test) {
-    fetch(RESOURCES_DIR + "clean-stash.py?token=" + uuid_token).then(function(resp) {
+    return fetch(RESOURCES_DIR + "clean-stash.py?token=" + uuid_token).then(function(resp) {
       assert_equals(resp.status, 200, "Clean stash response's status is 200");
       return promise_rejects(test, new TypeError(), fetch(url + urlParameters, requestInit));
     });
diff --git a/tests/wpt/web-platform-tests/fetch/api/idlharness.any.js b/tests/wpt/web-platform-tests/fetch/api/idlharness.any.js
index ccd4d2c0b46..7b3c694e16a 100644
--- a/tests/wpt/web-platform-tests/fetch/api/idlharness.any.js
+++ b/tests/wpt/web-platform-tests/fetch/api/idlharness.any.js
@@ -1,6 +1,7 @@
 // META: global=window,worker
 // META: script=/resources/WebIDLParser.js
 // META: script=/resources/idlharness.js
+// META: timeout=long
 
 idl_test(
   ['fetch'],
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/appcache.tentative.https.sub.html b/tests/wpt/web-platform-tests/fetch/metadata/appcache.tentative.https.sub.html
index 8912548ab1c..5e35472fcfd 100644
--- a/tests/wpt/web-platform-tests/fetch/metadata/appcache.tentative.https.sub.html
+++ b/tests/wpt/web-platform-tests/fetch/metadata/appcache.tentative.https.sub.html
@@ -8,16 +8,27 @@
 <body></body>
 <script>
   async_test(t => {
-    window.applicationCache.oncached = window.applicationCache.onnoupdate = window.applicationCache.onerror = t.step_func(e => {
-        fetch("/fetch/metadata/resources/record-header.py?retrieve=true&file=appcache-manifest{{$id}}")
-          .then(t.step_func(response => response.text()))
-          .then(t.step_func_done(text => assert_header_equals(text, {
-            "site": "same-origin",
-            "user": "",
-            "mode": "no-cors",
-            "dest": ""
-          })))
-          .catch(t.unreached_func("Fetching and verifying the results should succeed."));
-});
-}, "Appcache!");
+    const expected = {"site": "same-origin", "user": "", "mode": "no-cors", "dest": "empty"};
+    window.applicationCache.oncached = window.applicationCache.onnoupdate = window.applicationCache.onerror = t.step_func(async e => {
+      try {
+        let response = await fetch(
+            "/fetch/metadata/resources/record-header.py?retrieve=true&file=appcache-manifest{{$id}}");
+        let text = await response.text();
+        assert_header_equals(text, expected, "Appcache manifest");
+
+        response = await fetch(
+            "/fetch/metadata/resources/record-header.py?retrieve=true&file=appcache-resource{{$id}}");
+        text = await response.text();
+        assert_header_equals(text, expected, "Appcache resource");
+      } catch (e) {
+        t.step_func(e => {
+          if (e instanceof AssertionError) {
+            throw e;
+          }
+          assert_unreached(`Unhandled rejection with value: ${e}`);
+        });
+      }
+      t.done();
+    });
+  }, "Appcache!");
 </script>
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/navigation.https.sub.html b/tests/wpt/web-platform-tests/fetch/metadata/navigation.tentative.https.sub.html
similarity index 100%
rename from tests/wpt/web-platform-tests/fetch/metadata/navigation.https.sub.html
rename to tests/wpt/web-platform-tests/fetch/metadata/navigation.tentative.https.sub.html
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html b/tests/wpt/web-platform-tests/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html
new file mode 100644
index 00000000000..e2715a65854
--- /dev/null
+++ b/tests/wpt/web-platform-tests/fetch/metadata/redirect/multiple-redirect-https-downgrade-upgrade-prefetch.optional.tentative.sub.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=/fetch/metadata/resources/helper.js></script>
+<script src=/fetch/metadata/resources/redirectTestHelper.sub.js></script>
+<body>
+<script>
+  "use strict";
+  let nonce = "{{uuid()}}";
+  let expected = {"site": "cross-site", "user": "", "mode": "cors", "dest": ""};
+
+  testPrefetch(nonce, "Https downgrade-upgrade", MultipleRedirectTo, expected);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html b/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html
new file mode 100644
index 00000000000..45fd4efaace
--- /dev/null
+++ b/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-http-upgrade-prefetch.optional.tentative.sub.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=/fetch/metadata/resources/helper.js></script>
+<script src=/fetch/metadata/resources/redirectTestHelper.sub.js></script>
+<body>
+<script>
+  "use strict";
+  let nonce = "{{uuid()}}";
+  let expected = {"site": "cross-site", "user": "", "mode": "cors", "dest": ""};
+
+  testPrefetch(nonce, "Http upgrade", upgradeRedirectTo, expected);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html b/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html
new file mode 100644
index 00000000000..a446cbad840
--- /dev/null
+++ b/tests/wpt/web-platform-tests/fetch/metadata/redirect/redirect-https-downgrade-prefetch.optional.tentative.sub.html
@@ -0,0 +1,15 @@
+<!DOCTYPE html>
+<html>
+<script src=/resources/testharness.js></script>
+<script src=/resources/testharnessreport.js></script>
+<script src=/fetch/metadata/resources/helper.js></script>
+<script src=/fetch/metadata/resources/redirectTestHelper.sub.js></script>
+<body>
+<script>
+  "use strict";
+  let nonce = "{{uuid()}}";
+  let expected = {"site": "", "user": "", "mode": "", "dest": ""};
+
+  testPrefetch(nonce, "Https downgrade", downgradeRedirectTo, expected);
+</script>
+</body>
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/resources/helper.js b/tests/wpt/web-platform-tests/fetch/metadata/resources/helper.js
index a344c94106a..608a5297881 100644
--- a/tests/wpt/web-platform-tests/fetch/metadata/resources/helper.js
+++ b/tests/wpt/web-platform-tests/fetch/metadata/resources/helper.js
@@ -1,7 +1,3 @@
-function wrap_by_tag(tag, text) {
-  return tag ? `${tag}: ${text}`: text;
-}
-
 function validate_expectations(key, expected, tag) {
   return fetch("/fetch/metadata/resources/record-header.py?retrieve=true&file=" + key)
     .then(response => response.text())
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/resources/record-header.py b/tests/wpt/web-platform-tests/fetch/metadata/resources/record-header.py
index 99115475683..3bfb1fcdfaa 100644
--- a/tests/wpt/web-platform-tests/fetch/metadata/resources/record-header.py
+++ b/tests/wpt/web-platform-tests/fetch/metadata/resources/record-header.py
@@ -117,6 +117,20 @@ def main(request, response):
       response.headers.set("Content-Type", "application/javascript")
       return "self.postMessage('loaded');"
 
+    ## Return an appcache manifest
+    if key.startswith("appcache-manifest"):
+      response.headers.set("Content-Type", "text/cache-manifest")
+      return """CACHE MANIFEST
+/fetch/metadata/resources/record-header.py?file=appcache-resource%s
+
+NETWORK:
+*""" % key[17:]
+
+    ## Return an appcache resource
+    if key.startswith("appcache-resource"):
+      response.headers.set("Content-Type", "text/html")
+      return "<html>Appcache!</html>"
+
     ## Return a valid XSLT
     if key.startswith("xslt"):
       response.headers.set("Content-Type", "text/xsl")
@@ -128,4 +142,3 @@ def main(request, response):
     </xsl:copy>
   </xsl:template>
 </xsl:stylesheet>"""
-
diff --git a/tests/wpt/web-platform-tests/fetch/metadata/resources/redirectTestHelper.sub.js b/tests/wpt/web-platform-tests/fetch/metadata/resources/redirectTestHelper.sub.js
index c40b5a5e17e..e5547e7ac79 100644
--- a/tests/wpt/web-platform-tests/fetch/metadata/resources/redirectTestHelper.sub.js
+++ b/tests/wpt/web-platform-tests/fetch/metadata/resources/redirectTestHelper.sub.js
@@ -38,6 +38,34 @@ function downgradeRedirectTo(partialPath) {
   return secureRedirectURL + encodeURIComponent(insecureTestURL + partialPath);
 }
 
+// Helper to test the behavior of the `prefetch` Link type [1]. Because the the
+// behavior under test is optional [2], this function should only be used in
+// tests which have been denoted as "optional" [3].
+//
+// [1] https://html.spec.whatwg.org/#link-type-prefetch
+// [2] https://w3c.github.io/resource-hints/#load-and-error-events
+// [3] https://web-platform-tests.org/writing-tests/file-names.html
+function testPrefetch(nonce, testNamePrefix, urlHelperMethod, expectedResults) {
+  async_test(t => {
+    let key = 'prefetch' + nonce;
+    let e = document.createElement('link');
+    e.rel = 'prefetch';
+    e.crossOrigin = 'anonymous';
+    e.href = urlHelperMethod('resources/record-header.py?file=' + key) + '&simple=true';
+    e.onload = t.step_func(e => {
+      let expectation = { ...expectedResults };
+      if (expectation['mode'] != '')
+        expectation['mode'] = 'cors';
+      fetch('/fetch/metadata/resources/record-header.py?retrieve=true&file=' + key)
+        .then(t.step_func(response => response.text()))
+        .then(t.step_func_done(text => assert_header_equals(text, expectation, testNamePrefix + ' prefetch => No headers')))
+        .catch(t.unreached_func('Fetching and verifying the results should succeed.'));
+    });
+    e.onerror = t.unreached_func();
+    document.head.appendChild(e);
+  }, testNamePrefix + ' prefetch => No headers');
+}
+
 // Helper to run common redirect test cases that don't require special setup on
 // the test page itself.
 function RunCommonRedirectTests(testNamePrefix, urlHelperMethod, expectedResults) {
@@ -124,27 +152,6 @@ function RunCommonRedirectTests(testNamePrefix, urlHelperMethod, expectedResults
     });
   }, testNamePrefix + ' object');
 
-  if (document.createElement('link').relList.supports('prefetch')) {
-    async_test(t => {
-      let key = 'prefetch' + nonce;
-      let e = document.createElement('link');
-      e.rel = 'prefetch';
-      e.crossOrigin = 'anonymous';
-      e.href = urlHelperMethod('resources/record-header.py?file=' + key) + '&simple=true';
-      e.onload = t.step_func(e => {
-        let expectation = { ...expectedResults };
-        if (expectation['mode'] != '')
-          expectation['mode'] = 'cors';
-        fetch('/fetch/metadata/resources/record-header.py?retrieve=true&file=' + key)
-          .then(t.step_func(response => response.text()))
-          .then(t.step_func_done(text => assert_header_equals(text, expectation, testNamePrefix + ' prefetch => No headers')))
-          .catch(t.unreached_func('Fetching and verifying the results should succeed.'));
-      });
-      e.onerror = t.unreached_func();
-      document.head.appendChild(e);
-    }, testNamePrefix + ' prefetch => No headers');
-  }
-
   if (document.createElement('link').relList.supports('preload')) {
     async_test(t => {
       let key = 'preload' + nonce;
diff --git a/tests/wpt/web-platform-tests/fetch/stale-while-revalidate/fetch.html b/tests/wpt/web-platform-tests/fetch/stale-while-revalidate/fetch.html
index 73390c7ad59..41ece6826ed 100644
--- a/tests/wpt/web-platform-tests/fetch/stale-while-revalidate/fetch.html
+++ b/tests/wpt/web-platform-tests/fetch/stale-while-revalidate/fetch.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <meta charset="utf-8">
-<title>Tests Stale While Revalidate is not executed for fetch API</title>
+<title>Tests Stale While Revalidate is executed for fetch API</title>
 <script src="/resources/testharness.js"></script>
 <script src="/resources/testharnessreport.js"></script>
 <script src="/common/utils.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-closed.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-closed.html
index 7c939bc7746..106c3f97cb2 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-closed.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-closed.html
@@ -2,7 +2,7 @@
 <meta charset="utf-8">
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener when Opener Removed/Closed</title>
+    <title>Auxiliary Browsing Contexts: window.opener when Opener Removed/Closed</title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/common/PrefixedLocalStorage.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-multiple.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-multiple.html
index eb356c55972..e71d4dc8687 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-multiple.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-multiple.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener, multiple</title>
+    <title>Auxiliary Browsing Contexts: window.opener, multiple</title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/common/PrefixedLocalStorage.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noopener.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noopener.html
index fff10248fed..086a96442dd 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noopener.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noopener.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener noopener</title>
+    <title>Auxiliary Browsing Contexts: window.opener noopener</title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/common/PrefixedLocalStorage.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noreferrer.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noreferrer.html
index f82aa6f0abe..b8226bd2b93 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noreferrer.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-noreferrer.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener noreferrer</title>
+    <title>Auxiliary Browsing Contexts: window.opener noreferrer</title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/common/PrefixedLocalStorage.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-setter.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-setter.html
index e6ff4a19d0d..ac6e47b846b 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-setter.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener-setter.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener setter</title>
+    <title>Auxiliary Browsing Contexts: window.opener setter</title>
     <meta name=timeout content=long>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener.html b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener.html
index 5bbaee6a378..c43d3bd3bfb 100644
--- a/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener.html
+++ b/tests/wpt/web-platform-tests/html/browsers/windows/auxiliary-browsing-contexts/opener.html
@@ -1,7 +1,7 @@
 <!doctype html>
 <html>
   <head>
-    <title>Auxiliary Browing Contexts: window.opener</title>
+    <title>Auxiliary Browsing Contexts: window.opener</title>
     <script src="/resources/testharness.js"></script>
     <script src="/resources/testharnessreport.js"></script>
     <script src="/common/PrefixedLocalStorage.js"></script>
diff --git a/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-video-element/resize-during-playback.html b/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-video-element/resize-during-playback.html
new file mode 100644
index 00000000000..3ade1effc4b
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/embedded-content/the-video-element/resize-during-playback.html
@@ -0,0 +1,39 @@
+<!doctype html>
+<html>
+<head>
+<title>video element resizing during playback</title>
+<link rel="help" href="https://html.spec.whatwg.org/multipage/media.html#concept-video-intrinsic-width">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+</head>
+<body>
+<div id="log"></div>
+<script>
+for (const format of ['mp4', 'webm']) {
+  promise_test(async (t) => {
+    const video = document.createElement('video');
+    assert_precondition(video.canPlayType(`video/${format}`), `${format} supported`);
+
+    // Load the video and wait for initial resize event.
+    video.src = `/media/400x300-red-resize-200x150-green.${format}`;
+    video.muted = true;
+    video.preload = 'auto';
+    document.body.appendChild(video);
+    const eventWatcher = new EventWatcher(t, video, ['resize', 'playing', 'error', 'ended']);
+    await eventWatcher.wait_for(['resize']);
+    assert_equals(video.videoWidth, 400, 'width after first resize event');
+    assert_equals(video.videoHeight, 300, 'height after first resize event');
+
+    // Now play and wait for a second resize event.
+    const playPromise = video.play();
+    if (playPromise) {
+      playPromise.catch(t.unreached_func("play rejected"));
+    }
+    await eventWatcher.wait_for(['playing', 'resize']);
+    assert_equals(video.videoWidth, 200, 'width after second resize event');
+    assert_equals(video.videoHeight, 150, 'height after second resize event');
+  }, `${format} video`);
+}
+</script>
+</body>
+</html>
diff --git a/tests/wpt/web-platform-tests/html/semantics/forms/constraints/infinite_backtracking.html b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/infinite_backtracking.html
new file mode 100644
index 00000000000..52f6e316b1f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/html/semantics/forms/constraints/infinite_backtracking.html
@@ -0,0 +1,12 @@
+<!DOCTYPE html>
+<meta charset="utf-8">
+<title>The infinite pattern validation test</title>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<input type=text id=badinput value="12345678901234567890123456789123456789z" pattern="(\d+)*$">
+<script>
+  test(function(){
+    var elements = document.querySelectorAll(":invalid");
+    assert_array_equals(elements, [document.getElementById('badinput')]);
+  }, "Infinite backtracking pattern terminates");
+</script>
diff --git a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPoints.html.ini b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPoints.html.ini
index 4a4f5946fad..1d63261c554 100644
--- a/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPoints.html.ini
+++ b/tests/wpt/web-platform-tests/infrastructure/metadata/infrastructure/testdriver/actions/multiTouchPoints.html.ini
@@ -3,4 +3,4 @@
     if product == "firefox" or product == "safari" or product == "epiphany" or product == "webkit": ERROR
   [TestDriver actions: two touch points with one moving one pause]
      expected:
-       if product == "chrome": FAIL
+       if product == "chrome" and os != "mac": FAIL
diff --git a/tests/wpt/web-platform-tests/infrastructure/reftest/reftest_wait_TestRendered.html b/tests/wpt/web-platform-tests/infrastructure/reftest/reftest_wait_TestRendered.html
new file mode 100644
index 00000000000..4316d338b5c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/infrastructure/reftest/reftest_wait_TestRendered.html
@@ -0,0 +1,14 @@
+<html class="reftest-wait">
+<title>Test with reftest-wait</title>
+<link rel=match href=green.html>
+<style>
+:root {background-color:red}
+</style>
+<script>
+document.addEventListener("TestRendered",
+                          function() {
+                            document.documentElement.style.backgroundColor = "green";
+                            document.documentElement.className = "";
+                          });
+</script>
+</html>
diff --git a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
index 3e1a90ab63f..f6a413e54a2 100644
--- a/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
+++ b/tests/wpt/web-platform-tests/interfaces/cookie-store.idl
@@ -19,12 +19,6 @@ interface CookieStore : EventTarget {
   Promise<void> delete(USVString name);
   Promise<void> delete(CookieStoreDeleteOptions options);
 
-  [Exposed=ServiceWorker]
-  Promise<void> subscribeToChanges(sequence<CookieStoreGetOptions> subscriptions);
-
-  [Exposed=ServiceWorker]
-  Promise<sequence<CookieStoreGetOptions>> getChangeSubscriptions();
-
   [Exposed=Window]
   attribute EventHandler onchange;
 };
@@ -77,8 +71,7 @@ dictionary CookieListItem {
 
 typedef sequence<CookieListItem> CookieList;
 
-[Exposed=Window,
- SecureContext]
+[Exposed=Window, SecureContext]
 interface CookieChangeEvent : Event {
   constructor(DOMString type, optional CookieChangeEventInit eventInitDict = {});
   readonly attribute CookieList changed;
@@ -90,8 +83,8 @@ dictionary CookieChangeEventInit : EventInit {
   CookieList deleted;
 };
 
-[Exposed=ServiceWorker
-] interface ExtendableCookieChangeEvent : ExtendableEvent {
+[Exposed=ServiceWorker]
+interface ExtendableCookieChangeEvent : ExtendableEvent {
   constructor(DOMString type, optional ExtendableCookieChangeEventInit eventInitDict = {});
   readonly attribute CookieList changed;
   readonly attribute CookieList deleted;
@@ -102,6 +95,13 @@ dictionary ExtendableCookieChangeEventInit : ExtendableEventInit {
   CookieList deleted;
 };
 
+[Exposed=(ServiceWorker,Window), SecureContext]
+interface CookieStoreManager {
+  Promise<void> subscribe(sequence<CookieStoreGetOptions> subscriptions);
+  Promise<sequence<CookieStoreGetOptions>> getSubscriptions();
+  Promise<void> unsubscribe(sequence<CookieStoreGetOptions> subscriptions);
+};
+
 [SecureContext]
 partial interface Window {
   [Replaceable, SameObject] readonly attribute CookieStore cookieStore;
@@ -109,6 +109,10 @@ partial interface Window {
 
 partial interface ServiceWorkerGlobalScope {
   [Replaceable, SameObject] readonly attribute CookieStore cookieStore;
-
   attribute EventHandler oncookiechange;
 };
+
+[Exposed=(ServiceWorker,Window), SecureContext]
+partial interface ServiceWorkerRegistration {
+  readonly attribute CookieStoreManager cookies;
+};
diff --git a/tests/wpt/web-platform-tests/interfaces/resize-observer.idl b/tests/wpt/web-platform-tests/interfaces/resize-observer.idl
index 9ac157a6328..d53e9da55ee 100644
--- a/tests/wpt/web-platform-tests/interfaces/resize-observer.idl
+++ b/tests/wpt/web-platform-tests/interfaces/resize-observer.idl
@@ -21,7 +21,7 @@ interface ResizeObserver {
 
 callback ResizeObserverCallback = void (sequence<ResizeObserverEntry> entries, ResizeObserver observer);
 
-[Exposed=Window, Constructor(Element target)]
+[Exposed=Window]
 interface ResizeObserverEntry {
     readonly attribute Element target;
     readonly attribute DOMRectReadOnly contentRect;
diff --git a/tests/wpt/web-platform-tests/interfaces/wasm-js-api.idl b/tests/wpt/web-platform-tests/interfaces/wasm-js-api.idl
index 828729071e4..cc943610145 100644
--- a/tests/wpt/web-platform-tests/interfaces/wasm-js-api.idl
+++ b/tests/wpt/web-platform-tests/interfaces/wasm-js-api.idl
@@ -39,15 +39,17 @@ dictionary ModuleImportDescriptor {
   required ImportExportKind kind;
 };
 
-[LegacyNamespace=WebAssembly, Constructor(BufferSource bytes), Exposed=(Window,Worker,Worklet)]
+[LegacyNamespace=WebAssembly, Exposed=(Window,Worker,Worklet)]
 interface Module {
+  constructor(BufferSource bytes);
   static sequence<ModuleExportDescriptor> exports(Module moduleObject);
   static sequence<ModuleImportDescriptor> imports(Module moduleObject);
   static sequence<ArrayBuffer> customSections(Module moduleObject, DOMString sectionName);
 };
 
-[LegacyNamespace=WebAssembly, Constructor(Module module, optional object importObject), Exposed=(Window,Worker,Worklet)]
+[LegacyNamespace=WebAssembly, Exposed=(Window,Worker,Worklet)]
 interface Instance {
+  constructor(Module module, optional object importObject);
   readonly attribute object exports;
 };
 
@@ -56,8 +58,9 @@ dictionary MemoryDescriptor {
   [EnforceRange] unsigned long maximum;
 };
 
-[LegacyNamespace=WebAssembly, Constructor(MemoryDescriptor descriptor), Exposed=(Window,Worker,Worklet)]
+[LegacyNamespace=WebAssembly, Exposed=(Window,Worker,Worklet)]
 interface Memory {
+  constructor(MemoryDescriptor descriptor);
   unsigned long grow([EnforceRange] unsigned long delta);
   readonly attribute ArrayBuffer buffer;
 };
@@ -74,8 +77,9 @@ dictionary TableDescriptor {
   [EnforceRange] unsigned long maximum;
 };
 
-[LegacyNamespace=WebAssembly, Constructor(TableDescriptor descriptor), Exposed=(Window,Worker,Worklet)]
+[LegacyNamespace=WebAssembly, Exposed=(Window,Worker,Worklet)]
 interface Table {
+  constructor(TableDescriptor descriptor);
   unsigned long grow([EnforceRange] unsigned long delta);
   Function? get([EnforceRange] unsigned long index);
   void set([EnforceRange] unsigned long index, Function? value);
@@ -94,8 +98,9 @@ dictionary GlobalDescriptor {
   boolean mutable = false;
 };
 
-[LegacyNamespace=WebAssembly, Constructor(GlobalDescriptor descriptor, optional any v), Exposed=(Window,Worker,Worklet)]
+[LegacyNamespace=WebAssembly, Exposed=(Window,Worker,Worklet)]
 interface Global {
+  constructor(GlobalDescriptor descriptor, optional any v);
   any valueOf();
   attribute any value;
 };
diff --git a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
index 455720c641e..de23fac0c11 100644
--- a/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
+++ b/tests/wpt/web-platform-tests/interfaces/web-nfc.idl
@@ -13,6 +13,8 @@ dictionary NDEFMessageInit {
   required sequence<NDEFRecordInit> records;
 };
 
+typedef (DOMString or BufferSource or NDEFMessageInit) NDEFRecordDataSource;
+
 [Exposed=Window]
 interface NDEFRecord {
   constructor(NDEFRecordInit recordInit);
@@ -36,7 +38,7 @@ dictionary NDEFRecordInit {
   USVString encoding;
   USVString lang;
 
-  any data;
+  NDEFRecordDataSource data;
 };
 
 typedef (DOMString or BufferSource or NDEFMessageInit) NDEFMessageSource;
diff --git a/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-scroll.html b/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-scroll.html
new file mode 100644
index 00000000000..4fe5c6b7e7c
--- /dev/null
+++ b/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-scroll.html
@@ -0,0 +1,62 @@
+<!DOCTYPE html>
+<title>Layout Instability: shift in pointerdown becoming scroll</title>
+<link rel="help" href="https://wicg.github.io/layout-instability/" />
+<style>
+
+body { margin: 0; height: 2000px; }
+#box {
+  left: 0px;
+  top: 0px;
+  width: 400px;
+  height: 500px;
+  background: yellow;
+  position: relative;
+}
+
+</style>
+<div id="box"></div>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/util.js"></script>
+<script>
+
+const box = document.querySelector("#box");
+box.addEventListener("pointerdown", (e) => {
+  // Generate a layout shift before we know what type of input this pointer
+  // event sequence will become.
+  box.style.top = "100px";
+  e.preventDefault();
+});
+
+generateScrollSequence = () => new test_driver.Actions()
+    .addPointer("tp1", "touch")
+    .pointerMove(0, 100, {sourceName: "tp1"})
+    .pointerDown({sourceName: "tp1"})
+    .pointerMove(0, 0, {sourceName: "tp1"})
+    .pause(100)
+    .pointerUp({sourceName: "tp1"})
+    .pause(100);
+
+promise_test(async () => {
+  const watcher = new ScoreWatcher;
+
+  // Wait for the initial render to complete.
+  await waitForAnimationFrames(2);
+
+  // Send pointer events for a touch scroll.
+  await generateScrollSequence().send();
+
+  // The box is 400 x 500 and moves by 100px.
+  const expectedScore = computeExpectedScore(400 * (500 + 100), 100);
+
+  // Both scores should increase (scroll doesn't count as input for the purpose
+  // of the LayoutShift.hadRecentInput bit).
+  assert_equals(watcher.score, expectedScore);
+  assert_equals(watcher.scoreWithInputExclusion, expectedScore);
+
+}, "Shift in pointerdown reported when it becomes a scroll.");
+
+</script>
diff --git a/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-tap.html b/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-tap.html
new file mode 100644
index 00000000000..e2e7a911dc0
--- /dev/null
+++ b/tests/wpt/web-platform-tests/layout-instability/pointerdown-becomes-tap.html
@@ -0,0 +1,60 @@
+<!DOCTYPE html>
+<title>Layout Instability: shift in pointerdown becoming tap</title>
+<link rel="help" href="https://wicg.github.io/layout-instability/" />
+<style>
+
+body { margin: 0; height: 2000px; }
+#box {
+  left: 0px;
+  top: 0px;
+  width: 400px;
+  height: 500px;
+  background: yellow;
+  position: relative;
+}
+
+</style>
+<div id="box"></div>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/resources/testdriver.js"></script>
+<script src="/resources/testdriver-actions.js"></script>
+<script src="/resources/testdriver-vendor.js"></script>
+<script src="resources/util.js"></script>
+<script>
+
+const box = document.querySelector("#box");
+box.addEventListener("pointerdown", (e) => {
+  // Generate a layout shift before we know what type of input this pointer
+  // event sequence will become.
+  box.style.top = "100px";
+  e.preventDefault();
+});
+
+generateTapSequence = () => new test_driver.Actions()
+    .addPointer("tp1", "touch")
+    .pointerMove(0, 0, {sourceName: "tp1"})
+    .pointerDown({sourceName: "tp1"})
+    .pause(100)
+    .pointerUp({sourceName: "tp1"})
+    .pause(100);
+
+promise_test(async () => {
+  const watcher = new ScoreWatcher;
+
+  // Wait for the initial render to complete.
+  await waitForAnimationFrames(2);
+
+  // Send pointer events for a tap.
+  await generateTapSequence().send();
+
+  // The box is 400 x 500 and moves by 100px.
+  const expectedExcludedScore = computeExpectedScore(400 * (500 + 100), 100);
+
+  // Only the score that ignores hadRecentInput should increase.
+  assert_equals(watcher.score, expectedExcludedScore);
+  assert_equals(watcher.scoreWithInputExclusion, 0);
+
+}, "Shift in pointerdown excluded when it becomes a tap.");
+
+</script>
diff --git a/tests/wpt/web-platform-tests/layout-instability/resources/util.js b/tests/wpt/web-platform-tests/layout-instability/resources/util.js
index ca430d0a9e2..515914e11fa 100644
--- a/tests/wpt/web-platform-tests/layout-instability/resources/util.js
+++ b/tests/wpt/web-platform-tests/layout-instability/resources/util.js
@@ -47,6 +47,7 @@ ScoreWatcher = function() {
   if (PerformanceObserver.supportedEntryTypes.indexOf("layout-shift") == -1)
     throw new Error("Layout Instability API not supported");
   this.score = 0;
+  this.scoreWithInputExclusion = 0;
   const resetPromise = () => {
     this.promise = new Promise(resolve => {
       this.resolve = () => {
@@ -59,6 +60,8 @@ ScoreWatcher = function() {
   const observer = new PerformanceObserver(list => {
     list.getEntries().forEach(entry => {
       this.score += entry.value;
+      if (!entry.hadRecentInput)
+        this.scoreWithInputExclusion += entry.value;
       this.resolve();
     });
   });
diff --git a/tests/wpt/web-platform-tests/lint.whitelist b/tests/wpt/web-platform-tests/lint.whitelist
index 48d7e9d6a74..4f2ef9c005b 100644
--- a/tests/wpt/web-platform-tests/lint.whitelist
+++ b/tests/wpt/web-platform-tests/lint.whitelist
@@ -201,6 +201,7 @@ SET TIMEOUT: shadow-dom/slotchange-event.html
 SET TIMEOUT: trusted-types/block-string-assignment-to-DOMWindowTimers-setTimeout-setInterval.tentative.html
 SET TIMEOUT: trusted-types/DOMWindowTimers-setTimeout-setInterval.tentative.html
 SET TIMEOUT: user-timing/*
+SET TIMEOUT: web-animations/timing-model/animations/*
 SET TIMEOUT: webaudio/the-audio-api/the-mediaelementaudiosourcenode-interface/mediaElementAudioSourceToScriptProcessorTest.html
 SET TIMEOUT: webauthn/*timeout.https.html
 SET TIMEOUT: webdriver/*
diff --git a/tests/wpt/web-platform-tests/media/400x300-red-resize-200x150-green.mp4 b/tests/wpt/web-platform-tests/media/400x300-red-resize-200x150-green.mp4
new file mode 100644
index 0000000000000000000000000000000000000000..1058c1bf26a0ae080e199886908ea2572c865f00
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literal 0
HcmV?d00001

diff --git a/tests/wpt/web-platform-tests/media/400x300-red-resize-200x150-green.webm b/tests/wpt/web-platform-tests/media/400x300-red-resize-200x150-green.webm
new file mode 100644
index 0000000000000000000000000000000000000000..53b6517849f8a64536c3f015b956224b5f71dc93
GIT binary patch
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HcmV?d00001

diff --git a/tests/wpt/web-platform-tests/portals/portals-adopt-predecessor.html b/tests/wpt/web-platform-tests/portals/portals-adopt-predecessor.html
index 70545458b46..96d0be9a401 100644
--- a/tests/wpt/web-platform-tests/portals/portals-adopt-predecessor.html
+++ b/tests/wpt/web-platform-tests/portals/portals-adopt-predecessor.html
@@ -62,4 +62,14 @@
     });
     window.open(`resources/portals-adopt-predecessor.html?test=${test}`);
   }, "Tests that the adopted predecessor is destroyed if it isn't inserted");
+
+  async_test(t => {
+    var test = "adopt-to-disconnected-node";
+    var bc = new BroadcastChannel(`test-${test}`);
+    bc.onmessage = t.step_func_done(function(e) {
+      assert_equals(e.data, "passed");
+      bc.close();
+    });
+    window.open(`resources/portals-adopt-predecessor.html?test=${test}`);
+  }, "Tests that an adopted portal can be inserted into a disconnected node.");
 </script>
diff --git a/tests/wpt/web-platform-tests/portals/resources/portals-adopt-predecessor-portal.html b/tests/wpt/web-platform-tests/portals/resources/portals-adopt-predecessor-portal.html
index b7eb3b96779..48e162b9714 100644
--- a/tests/wpt/web-platform-tests/portals/resources/portals-adopt-predecessor-portal.html
+++ b/tests/wpt/web-platform-tests/portals/resources/portals-adopt-predecessor-portal.html
@@ -64,5 +64,14 @@
         });
       });
     }
+    if (test == "adopt-to-disconnected-node") {
+      var portal = e.adoptPredecessor();
+      document.body.appendChild(portal);
+      var node = document.createElement("div");
+      node.appendChild(portal);
+      var bc_test = new BroadcastChannel(`test-${test}`);
+      bc_test.postMessage("passed");
+      bc_test.close();
+    }
   }
 </script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/fetch-event-worker-timing-frame.tentative.https.html b/tests/wpt/web-platform-tests/service-workers/service-worker/fetch-event-worker-timing-frame.tentative.https.html
new file mode 100644
index 00000000000..6ca92476195
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/fetch-event-worker-timing-frame.tentative.https.html
@@ -0,0 +1,225 @@
+<!DOCTYPE html>
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<script src="/common/get-host-info.sub.js"></script>
+<script src="resources/test-helpers.sub.js"></script>
+<script>
+// This is tentative because currently this feature only has an explainer and
+// no formal spec.
+// https://github.com/wanderview/fetchevent-worker-timing/blob/master/explainer.md
+
+async function wait_for_performance_entries(url, performance, entry_type) {
+  const entries = await performance.getEntriesByName(url);
+  if (entries.length > 0) {
+    return entries;
+  }
+  return new Promise((resolve) => {
+    new PerformanceObserver((list, observer) => {
+      const entries = list.getEntriesByName(url);
+      if (entries.length > 0) {
+        observer.disconnect();
+        resolve(entries);
+      }
+    }).observe({ entryTypes: [entry_type] });
+  });
+}
+
+function load_image(target_document, url) {
+  return new Promise((resolve, reject) => {
+    const image = target_document.createElement('img');
+    image.onload = () => { resolve(image); }
+    image.onerror = () => { reject(`Failed to load: ${url}`); };
+    image.src = url;
+  });
+}
+
+promise_test(async (t) => {
+  const registration = await service_worker_unregister_and_register(
+    t, 'resources/fetch-event-worker-timing.js', 'resources/');
+  promise_test(async (t) => registration.unregister(),
+    'Unregister service worker');
+  await wait_for_state(t, registration.installing, 'activated');
+}, 'Set up an active service worker');
+
+promise_test(async (t) => {
+  const frame = await with_iframe('resources/empty.html?fallback');
+  t.add_cleanup(() => frame.remove());
+
+  const performance = frame.contentWindow.performance;
+
+  const entries = await wait_for_performance_entries(
+    frame.src, performance, 'navigation');
+  assert_equals(entries.length, 1, 'PerformanceNavigationTiming is observed');
+
+  const worker_timings = await entries[0].workerTiming;
+  const expected_worker_timings = [
+    {
+      name: "network-fallback mark 1",
+      entryType: "mark",
+      detail: { foo: 'foo' }
+    },
+    {
+      name: "network-fallback mark 2",
+      entryType: "mark",
+      detail: { bar: 'bar' }
+    },
+    {
+      name: "network-fallback measure",
+      entryType: "measure",
+      detail: { baz: 'baz' }
+    }
+  ];
+  assert_equals(worker_timings.length, expected_worker_timings.length,
+    'workerTiming is completed when PerformanceResourceTiming is observed');
+
+  for (let i = 0; i < workerTimings.length; i++) {
+    assert_equals(worker_timings[i].name,
+      expected_worker_timings[i].name, 'entry name');
+    assert_equals(worker_timings[i].entryType,
+      expected_worker_timings[i].entryType, 'entry type');
+    assert_object_equals(worker_timings[i].detail,
+      expected_worker_timings[i].detail, 'entry detail');
+  }
+}, 'workerTiming for navigation in a frame with network fallback');
+
+promise_test(async (t) => {
+  const frame= await with_iframe('resources/empty.html?fetch-event');
+  t.add_cleanup(() => frame.remove());
+
+  const performance = frame.contentWindow.performance;
+
+  const entries = await wait_for_performance_entries(
+    frame.src, performance, 'navigation');
+  assert_equals(entries.length, 1, 'PerformanceNavigationTiming is observed');
+
+  const worker_timings = await entries[0].workerTiming;
+  const expected_worker_timings = [
+    {
+      name: "fetch-event mark 1",
+      entryType: "mark",
+      detail: { foo: 'foo' }
+    },
+    {
+      name: "fetch-event mark 2",
+      entryType: "mark",
+      detail: { bar: 'bar' }
+    },
+    {
+      name: "fetch-event measure",
+      entryType: "measure",
+      detail: { baz: 'baz' }
+    }
+  ];
+  assert_equals(worker_timings.length, expected_worker_timings.length,
+    'workerTiming is completed when PerformanceResourceTiming is observed');
+
+  for (let i = 0; i < workerTimings.length; i++) {
+    assert_equals(worker_timings[i].name,
+      expected_worker_timings[i].name, 'entry name');
+    assert_equals(worker_timings[i].entryType,
+      expected_worker_timings[i].entryType, 'entry type');
+    assert_object_equals(worker_timings[i].detail,
+      expected_worker_timings[i].detail, 'entry detail');
+  }
+}, 'workerTiming for navigation in a frame for a response from a fetch ' +
+   'handler');
+
+promise_test(async (t) => {
+  const frame = await with_iframe('resources/empty.html');
+  t.add_cleanup(() => frame.remove());
+
+  const performance = frame.contentWindow.performance;
+
+  const image_path = base_path() + 'resources/square.png?fallback';
+  const image_url = get_host_info()['HTTPS_ORIGIN'] + image_path;
+
+  let entries = await performance.getEntriesByName(image_url);
+  assert_equals(entries.length, 0, 'No PerformanceResourceTiming');
+
+  const image = await load_image(frame.contentDocument,
+    'square.png?fetch-event');
+  entries = await wait_for_performance_entries(
+    image.src, performance, 'resource');
+  assert_equals(entries.length, 1, 'PerformanceResourceTiming is observed');
+
+  const worker_timings = await entries[0].workerTiming;
+  const expected_worker_timings = [
+    {
+      name: "network-fallback mark 1",
+      entryType: "mark",
+      detail: { foo: 'foo' }
+    },
+    {
+      name: "network-fallback mark 2",
+      entryType: "mark",
+      detail: { bar: 'bar' }
+    },
+    {
+      name: "network-fallback measure",
+      entryType: "measure",
+      detail: { baz: 'baz' }
+    }
+  ];
+  assert_equals(worker_timings.length, expected_worker_timings.length,
+    'workerTiming is completed when PerformanceResourceTiming is observed');
+
+  for (let i = 0; i < workerTimings.length; i++) {
+    assert_equals(worker_timings[i].name,
+      expected_worker_timings[i].name, 'entry name');
+    assert_equals(worker_timings[i].entryType,
+      expected_worker_timings[i].entryType, 'entry type');
+    assert_object_equals(worker_timings[i].detail,
+      expected_worker_timings[i].detail, 'entry detail');
+  }
+}, 'workerTiming for subresources in a frame with network fallback');
+
+promise_test(async (t) => {
+  const frame = await with_iframe('resources/empty.html');
+  t.add_cleanup(() => frame.remove());
+
+  const performance = frame.contentWindow.performance;
+
+  const image_path = base_path() + 'resources/square.png?fetch-event';
+  const image_url = get_host_info()['HTTPS_ORIGIN'] + image_path;
+
+  let entries = await performance.getEntriesByName(image_url);
+  assert_equals(entries.length, 0, 'No PerformanceResourceTiming');
+
+  const image = await load_image(frame.contentDocument,
+    'square.png?fetch-event');
+  entries = await wait_for_performance_entries(
+    image.src, performance, 'resource');
+  assert_equals(entries.length, 1, 'PerformanceResourceTiming is observed');
+
+  const worker_timings = await entries[0].workerTiming;
+  const expected_worker_timings = [
+    {
+      name: "fetch-event mark 1",
+      entryType: "mark",
+      detail: { foo: 'foo' }
+    },
+    {
+      name: "fetch-event mark 2",
+      entryType: "mark",
+      detail: { bar: 'bar' }
+    },
+    {
+      name: "fetch-event measure",
+      entryType: "measure",
+      detail: { baz: 'baz' }
+    }
+  ];
+  assert_equals(worker_timings.length, expected_worker_timings.length,
+    'workerTiming is completed when PerformanceResourceTiming is observed');
+
+  for (let i = 0; i < workerTimings.length; i++) {
+    assert_equals(worker_timings[i].name,
+      expected_worker_timings[i].name, 'entry name');
+    assert_equals(worker_timings[i].entryType,
+      expected_worker_timings[i].entryType, 'entry type');
+    assert_object_equals(worker_timings[i].detail,
+      expected_worker_timings[i].detail, 'entry detail');
+  }
+}, 'workerTiming for subresources in a frame for a response from a fetch' +
+   'handler');
+</script>
diff --git a/tests/wpt/web-platform-tests/service-workers/service-worker/resources/fetch-event-worker-timing.js b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/fetch-event-worker-timing.js
new file mode 100644
index 00000000000..7f3b201ef76
--- /dev/null
+++ b/tests/wpt/web-platform-tests/service-workers/service-worker/resources/fetch-event-worker-timing.js
@@ -0,0 +1,39 @@
+importScripts("/resources/testharness.js");
+
+self.addEventListener('fetch', event => {
+  if (event.request.url.indexOf('fallback') >= 0) {
+    event.addPerformanceEntry(
+      performance.mark("network-fallback mark 1",
+        { detail: { foo: 'foo' } }));
+    event.addPerformanceEntry(
+      performance.mark("network-fallback mark 2",
+        { detail: { bar: 'bar' } }));
+    event.addPerformanceEntry(performance.measure("network-fallback measure",
+      {
+        start: "network-fallback mark 1", end: "network-fallback mark 2",
+        detail: { baz: 'baz' }
+      }));
+    return;
+  } else if (event.request.url.indexOf('fetch-event') >= 0) {
+    event.respondWith((async () => {
+      event.addPerformanceEntry(performance.mark("fetch-event mark 1",
+        { detail: { foo: 'foo' } }));
+      const response = await fetch(event.request);
+
+      event.waitUntil(new Promise((resolve) => {
+        // Add performance entries after settling a promise for respondWith().
+        step_timeout(() => {
+          event.addPerformanceEntry(performance.mark("fetch-event mark 2",
+            { detail: { bar: 'bar' } }));
+          event.addPerformanceEntry(performance.measure("fetch-event measure",
+            {
+              start: "fetch-event mark 1", end: "fetch-event mark 2",
+              detail: { baz: 'baz' }
+            }));
+          resolve();
+        }, 100);
+      }));
+      return response;
+    })());
+  }
+});
diff --git a/tests/wpt/web-platform-tests/storage-access-api/META.yml b/tests/wpt/web-platform-tests/storage-access-api/META.yml
index cb059fe6bb1..83f07857538 100644
--- a/tests/wpt/web-platform-tests/storage-access-api/META.yml
+++ b/tests/wpt/web-platform-tests/storage-access-api/META.yml
@@ -1,2 +1,5 @@
+spec: https://github.com/whatwg/html/issues/3338
 suggested_reviewers:
   - Brandr0id
+  - ehsan
+  - johnwilander
diff --git a/tests/wpt/web-platform-tests/svg/META.yml b/tests/wpt/web-platform-tests/svg/META.yml
index 0836892864f..ee0fff087c4 100644
--- a/tests/wpt/web-platform-tests/svg/META.yml
+++ b/tests/wpt/web-platform-tests/svg/META.yml
@@ -6,3 +6,4 @@ suggested_reviewers:
   - AmeliaBR
   - svgeesus
   - dirkschulze
+  - fsoder
diff --git a/tests/wpt/web-platform-tests/svg/painting/marker-009-ref.svg b/tests/wpt/web-platform-tests/svg/painting/marker-009-ref.svg
new file mode 100644
index 00000000000..968eba091c5
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/painting/marker-009-ref.svg
@@ -0,0 +1,19 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="500" height="500">
+    <path d="M50,50 h100 v100 z m150,0 h100 v100 z m150,0 h100 v100 z"
+    fill="none" stroke="black" stroke-width="10"
+    />
+    <circle cx="50" cy="50" r="25" fill="green"/>
+    <circle cx="50" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="150" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="150" cy="150" r="20" fill="skyblue" opacity="0.9"/>
+
+    <circle cx="200" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="200" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="300" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="300" cy="150" r="20" fill="skyblue" opacity="0.9"/>
+
+    <circle cx="350" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="350" cy="50" r="15" fill="maroon" opacity="0.85"/>
+    <circle cx="450" cy="50" r="20" fill="skyblue" opacity="0.9"/>
+    <circle cx="450" cy="150" r="20" fill="skyblue" opacity="0.9"/>
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/painting/marker-009.svg b/tests/wpt/web-platform-tests/svg/painting/marker-009.svg
new file mode 100644
index 00000000000..9e6fe21d917
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/painting/marker-009.svg
@@ -0,0 +1,23 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml" width="500" height="500">
+    <html:link rel="help" href="https://www.w3.org/TR/2016/CR-SVG2-20160915/painting.html#OrientAttribute"/>
+    <html:link rel="match" href="marker-009-ref.svg"/>
+    <html:meta name="assert" content="Tests correct number of markers are drawn on multiple sub-paths"/>
+    <defs>
+        <marker id="m1" markerUnits="userSpaceOnUse" overflow="visible">
+            <circle cx="0" cy="0" r="25" fill="green"/>
+        </marker>
+        <marker id="m2" markerUnits="userSpaceOnUse" overflow="visible">
+            <circle cx="0" cy="0" r="20" fill="skyblue" opacity="0.9"/>
+        </marker>
+        <marker id="m3" markerUnits="userSpaceOnUse" overflow="visible">
+            <circle cx="0" cy="0" r="15" fill="maroon" opacity="0.85"/>
+        </marker>
+    </defs>
+
+    <path d="M50,50 h100 v100 z m150,0 h100 v100 z m150,0 h100 v100 z"
+    fill="none" stroke="black" stroke-width="10"
+    marker-start="url(#m1)"
+    marker-mid="url(#m2)"
+    marker-end="url(#m3)"
+    />
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/painting/marker-orient-001-ref.svg b/tests/wpt/web-platform-tests/svg/painting/marker-orient-001-ref.svg
new file mode 100644
index 00000000000..e328aa05462
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/painting/marker-orient-001-ref.svg
@@ -0,0 +1,31 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="500" height="500">
+    <defs>
+        <marker id="arrowNW" orient="225" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowNE" orient="315" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowSE" orient="45" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowSW" orient="135" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowW" orient="180" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowS" orient="90" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+        <marker id="arrowAuto" orient="auto" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+     </defs>
+    <!-- Test path, with markers -->
+    <path d="M 40,40 l140,140 240,240" marker-start="url(#arrowNW)" marker-mid="url(#arrowSE)" marker-end="url(#arrowSE)" stroke="black" stroke-width="2"/>
+    <path d="M 40,400 l100,-100 100,-100" marker-start="url(#arrowSW)" marker-mid="url(#arrowNE)" marker-end="url(#arrowNE)" stroke="black" stroke-width="2"/>
+    <path d="M 160,40 c40,0 40,0 40,40" marker-start="url(#arrowW)" marker-end="url(#arrowS)" stroke="black" fill="none" stroke-width="2"/>
+    <path d="M 260,140 a 100,100 0 1 1 100,100" marker-start="url(#arrowS)" marker-end="url(#arrowW)" stroke="black" fill="none" stroke-width="2"/>
+    <path d="M 340,100 h50 v50 h-50 z" marker-start="url(#arrowSW)" marker-mid="url(#arrowAuto)" marker-end="url(#arrowNE)" stroke="black" fill="none" stroke-width="2"/>
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/painting/marker-orient-001.svg b/tests/wpt/web-platform-tests/svg/painting/marker-orient-001.svg
new file mode 100644
index 00000000000..eefb1068391
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/painting/marker-orient-001.svg
@@ -0,0 +1,16 @@
+<svg xmlns="http://www.w3.org/2000/svg" xmlns:html="http://www.w3.org/1999/xhtml" width="500" height="500">
+    <html:link rel="help" href="https://www.w3.org/TR/2016/CR-SVG2-20160915/painting.html#OrientAttribute"/>
+    <html:link rel="match" href="marker-orient-001-ref.svg"/>
+    <html:meta name="assert" content="Ensure orientation of auto and auto-start-reverse markers is correct."/>
+    <defs>
+        <marker id="arrow" orient="auto-start-reverse" markerUnits="userSpaceOnUse" style="overflow:visible">
+            <path d="M25,0 L 0,-25 L0,25 z" fill="green"/>
+        </marker>
+     </defs>
+    <!-- Test path, with markers -->
+    <path d="M 40,40 l140,140 240,240" marker-start="url(#arrow)" marker-mid="url(#arrow)" marker-end="url(#arrow)" stroke="black" stroke-width="2"/>
+    <path d="M 40,400 l100,-100 100,-100" marker-start="url(#arrow)" marker-mid="url(#arrow)" marker-end="url(#arrow)" stroke="black" stroke-width="2"/>
+    <path d="M 160,40 c40,0 40,0 40,40" marker-start="url(#arrow)" marker-mid="url(#arrow)" marker-end="url(#arrow)" stroke="black" fill="none" stroke-width="2"/>
+    <path d="M 260,140 a 100,100 0 1 1 100,100" marker-start="url(#arrow)" marker-mid="url(#arrow)" marker-end="url(#arrow)" stroke="black" fill="none" stroke-width="2"/>
+    <path d="M 340,100 h50 v50 h-50 z" marker-start="url(#arrow)" marker-mid="url(#arrow)" marker-end="url(#arrow)" stroke="black" fill="none" stroke-width="2"/>
+</svg>
diff --git a/tests/wpt/web-platform-tests/svg/render/foreignObject-in-non-rendered-getComputedStyle.html b/tests/wpt/web-platform-tests/svg/render/foreignObject-in-non-rendered-getComputedStyle.html
new file mode 100644
index 00000000000..409f1044a33
--- /dev/null
+++ b/tests/wpt/web-platform-tests/svg/render/foreignObject-in-non-rendered-getComputedStyle.html
@@ -0,0 +1,20 @@
+<!doctype html>
+<title>SVG Test: Resolved width inside non-rendered foreignObject</title>
+<link rel="help" href="https://www.w3.org/TR/SVG2/render.html#Rendered-vs-NonRendered">
+<script src="/resources/testharness.js"></script>
+<script src="/resources/testharnessreport.js"></script>
+<svg>
+  <radialGradient>
+    <pattern>
+      <foreignObject id="foreignObject">
+        <div id="foRoot"></div>
+      </foreignObject>
+    </pattern>
+  </radialGradient>
+</svg>
+<script>
+  test(() => {
+    assert_equals(getComputedStyle(foreignObject).width, "auto", "Non-rendered foreignObject should have width computed to 'auto'.");
+    assert_equals(getComputedStyle(foRoot).width, "auto", "Non-rendered block inside foreignObject should have width computed to 'auto'.");
+  }, "Test that we don't generated boxes for foreignObject in non-rendered SVG.");
+</script>
diff --git a/tests/wpt/web-platform-tests/tools/ci/azure/install_safari.yml b/tests/wpt/web-platform-tests/tools/ci/azure/install_safari.yml
index 10466e3278f..a8641465ac8 100644
--- a/tests/wpt/web-platform-tests/tools/ci/azure/install_safari.yml
+++ b/tests/wpt/web-platform-tests/tools/ci/azure/install_safari.yml
@@ -5,7 +5,7 @@ parameters:
 steps:
 - ${{ if eq(parameters.channel, 'preview') }}:
   - script: |
-      HOMEBREW_NO_AUTO_UPDATE=1 brew cask install https://raw.githubusercontent.com/Homebrew/homebrew-cask-versions/master/Casks/safari-technology-preview.rb
+      HOMEBREW_NO_AUTO_UPDATE=1 brew cask install tools/ci/azure/safari-technology-preview.rb
       sudo "/Applications/Safari Technology Preview.app/Contents/MacOS/safaridriver" --enable
       defaults write com.apple.SafariTechnologyPreview WebKitJavaScriptCanOpenWindowsAutomatically 1
       defaults write com.apple.SafariTechnologyPreview ExperimentalServerTimingEnabled 1
diff --git a/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb b/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb
new file mode 100644
index 00000000000..b32739be58a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/azure/safari-technology-preview.rb
@@ -0,0 +1,33 @@
+cask 'safari-technology-preview' do
+  if MacOS.version <= :mojave
+    version '96,061-44056-20191120-ac7bb196-2724-4840-bce9-6c83ecdbfb2c'
+    sha256 'e80ceacdff7e75218365993e5af1c81c9bcc4785291ae00abba3d14ac5614317'
+  else
+    version '96,061-47718-20191120-02bc7569-ee6b-4c28-9ec4-0ceeda3c3c3a'
+    sha256 'bbfcdc36bf9b55aec5838d66e34c41dd3f6a64091406bc38f45c888360f191fe'
+  end
+
+  url "https://secure-appldnld.apple.com/STP/#{version.after_comma}/SafariTechnologyPreview.dmg"
+  appcast 'https://developer.apple.com/safari/download/'
+  name 'Safari Technology Preview'
+  homepage 'https://developer.apple.com/safari/download/'
+
+  auto_updates true
+  depends_on macos: '>= :mojave'
+
+  pkg 'Safari Technology Preview.pkg'
+
+  uninstall delete: '/Applications/Safari Technology Preview.app'
+
+  zap trash: [
+               '~/Library/Application Support/com.apple.sharedfilelist/com.apple.LSSharedFileList.ApplicationRecentDocuments/com.apple.safaritechnologypreview.sfl*',
+               '~/Library/Caches/com.apple.SafariTechnologyPreview',
+               '~/Library/Preferences/com.apple.SafariTechnologyPreview.plist',
+               '~/Library/SafariTechnologyPreview',
+               '~/Library/Saved Application State/com.apple.SafariTechnologyPreview.savedState',
+               '~/Library/SyncedPreferences/com.apple.SafariTechnologyPreview-com.apple.Safari.UserRequests.plist',
+               '~/Library/SyncedPreferences/com.apple.SafariTechnologyPreview-com.apple.Safari.WebFeedSubscriptions.plist',
+               '~/Library/SyncedPreferences/com.apple.SafariTechnologyPreview.plist',
+               '~/Library/WebKit/com.apple.SafariTechnologyPreview',
+             ]
+end
diff --git a/tests/wpt/web-platform-tests/tools/ci/commands.json b/tests/wpt/web-platform-tests/tools/ci/commands.json
index 841fd855c80..c9cd7c45898 100644
--- a/tests/wpt/web-platform-tests/tools/ci/commands.json
+++ b/tests/wpt/web-platform-tests/tools/ci/commands.json
@@ -14,7 +14,7 @@
     "virtualenv": false
   },
   "tc-download": {
-    "path": "tcdownload.py",
+    "path": "tc/download.py",
     "script": "run",
     "parser": "get_parser",
     "parse_known": true,
@@ -24,5 +24,27 @@
       "requests",
       "pygithub"
     ]
+  },
+  "tc-taskgraph": {
+    "path": "tc/taskgraph.py",
+    "script": "run",
+    "help": "Build the taskgraph",
+    "virtualenv": true,
+    "install": [
+      "requests",
+      "pyyaml"
+    ]
+  },
+  "tc-decision": {
+    "path": "tc/decision.py",
+    "parser": "get_parser",
+    "script": "run",
+    "help": "Run the decision task",
+    "virtualenv": true,
+    "install": [
+        "requests",
+        "pyyaml",
+        "taskcluster"
+    ]
   }
 }
diff --git a/tests/wpt/web-platform-tests/tools/ci/run_tc.py b/tests/wpt/web-platform-tests/tools/ci/run_tc.py
index be7dbe082a1..b4cb2b01b97 100755
--- a/tests/wpt/web-platform-tests/tools/ci/run_tc.py
+++ b/tests/wpt/web-platform-tests/tools/ci/run_tc.py
@@ -38,7 +38,6 @@ the serialization of a GitHub event payload.
 import argparse
 import json
 import os
-import re
 import subprocess
 import sys
 import tempfile
@@ -99,8 +98,12 @@ def get_parser():
                    help="Start xvfb")
     p.add_argument("--checkout",
                    help="Revision to checkout before starting job")
-    p.add_argument("job",
-                   help="Name of the job associated with the current event")
+    p.add_argument("--install-certificates", action="store_true", default=None,
+                   help="Install web-platform.test certificates to UA store")
+    p.add_argument("--no-install-certificates", action="store_false", default=None,
+                   help="Don't install web-platform.test certificates to UA store")
+    p.add_argument("--rev",
+                   help="Revision that the task_head ref is expected to point to")
     p.add_argument("script",
                    help="Script to run for the job")
     p.add_argument("script_args",
@@ -116,11 +119,17 @@ def start_userspace_oom_killer():
 
 
 def make_hosts_file():
-    subprocess.check_call(["sudo", "sh", "-c", "./wpt make-hosts-file >> /etc/hosts"])
+    run(["sudo", "sh", "-c", "./wpt make-hosts-file >> /etc/hosts"])
 
 
 def checkout_revision(rev):
-    subprocess.check_call(["git", "checkout", "--quiet", rev])
+    run(["git", "checkout", "--quiet", rev])
+
+
+def install_certificates():
+    run(["sudo", "cp", "tools/certs/cacert.pem",
+         "/usr/local/share/ca-certificates/cacert.crt"])
+    run(["sudo", "update-ca-certificates"])
 
 
 def install_chrome(channel):
@@ -213,29 +222,6 @@ def start_xvfb():
     start(["sudo", "fluxbox", "-display", os.environ["DISPLAY"]])
 
 
-def get_extra_jobs(event):
-    body = None
-    jobs = set()
-    if "commits" in event and event["commits"]:
-        body = event["commits"][0]["message"]
-    elif "pull_request" in event:
-        body = event["pull_request"]["body"]
-
-    if not body:
-        return jobs
-
-    regexp = re.compile(r"\s*tc-jobs:(.*)$")
-
-    for line in body.splitlines():
-        m = regexp.match(line)
-        if m:
-            items = m.group(1)
-            for item in items.split(","):
-                jobs.add(item.strip())
-            break
-    return jobs
-
-
 def set_variables(event):
     # Set some variables that we use to get the commits on the current branch
     ref_prefix = "refs/heads/"
@@ -256,23 +242,13 @@ def set_variables(event):
         os.environ["GITHUB_BRANCH"] = branch
 
 
-def include_job(job):
-    # Special case things that unconditionally run on pushes,
-    # assuming a higher layer is filtering the required list of branches
-    if (os.environ["GITHUB_PULL_REQUEST"] == "false" and
-        job == "run-all"):
-        return True
-
-    jobs_str = run([os.path.join(root, "wpt"),
-                    "test-jobs"], return_stdout=True)
-    print(jobs_str)
-    return job in set(jobs_str.splitlines())
-
-
 def setup_environment(args):
     if args.hosts_file:
         make_hosts_file()
 
+    if args.install_certificates:
+        install_certificates()
+
     if "chrome" in args.browser:
         assert args.channel is not None
         install_chrome(args.channel)
@@ -337,9 +313,33 @@ def fetch_event_data():
         return json.loads(event_data)
 
 
+def include_job(job):
+    # Only for supporting pre decision-task PRs
+    # Special case things that unconditionally run on pushes,
+    # assuming a higher layer is filtering the required list of branches
+    if "GITHUB_PULL_REQUEST" not in os.environ:
+        return True
+
+    if (os.environ["GITHUB_PULL_REQUEST"] == "false" and
+        job == "run-all"):
+        return True
+
+    jobs_str = run([os.path.join(root, "wpt"),
+                    "test-jobs"], return_stdout=True)
+    print(jobs_str)
+    return job in set(jobs_str.splitlines())
+
+
 def main():
     args = get_parser().parse_args()
 
+    if args.rev is not None:
+        task_head = run(["git", "rev-parse", "task_head"], return_stdout=True).strip()
+        if task_head != args.rev:
+            print("CRITICAL: task_head points at %s, expected %s. "
+                  "This may be because the branch was updated" % (task_head, args.rev))
+            sys.exit(1)
+
     if "TASK_EVENT" in os.environ:
         event = json.loads(os.environ["TASK_EVENT"])
     else:
@@ -350,24 +350,15 @@ def main():
 
     setup_repository()
 
-    extra_jobs = get_extra_jobs(event)
-
-    job = args.job
-
-    print("Job %s" % job)
-
-    run_if = [(lambda: job == "all", "job set to 'all'"),
-              (lambda:"all" in extra_jobs, "Manually specified jobs includes 'all'"),
-              (lambda:job in extra_jobs, "Manually specified jobs includes '%s'" % job),
-              (lambda:include_job(job), "CI required jobs includes '%s'" % job)]
-
-    for fn, msg in run_if:
-        if fn():
-            print(msg)
-            break
-    else:
-        print("Job not scheduled for this push")
-        return
+    # Hack for backwards compatibility
+    if args.script in ["run-all", "lint", "update_built", "tools_unittest",
+                       "wpt_integration", "resources_unittest",
+                       "wptrunner_infrastructure", "stability", "affected_tests"]:
+        job = args.script
+        if not include_job(job):
+            return
+        args.script = args.script_args[0]
+        args.script_args = args.script_args[1:]
 
     # Run the job
     setup_environment(args)
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/README.md b/tests/wpt/web-platform-tests/tools/ci/tc/README.md
new file mode 100644
index 00000000000..11f367f986f
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/README.md
@@ -0,0 +1,235 @@
+# Taskgraph Setup
+
+The taskgraph is built from a YAML file. This file has two top-level
+properties: `components` and `tasks`. The full list of tasks is
+defined by the `tasks` object; each task is an object with a single
+property representing the task with the corresponding value an object
+representing the task properties. Each task requires the following
+top-level properties:
+
+* `provisionerId`: String. Name of Taskcluster provisioner
+* `schedulerId`: String. Name of Taskcluster scheduler
+* `deadline`: String. Time until the task expires
+* `image`: String. Name of docker image to use for task
+* `maxRunTime`: Number. Maximum time in seconds for which the task can
+  run.
+* `artifacts`: Object. List of artifacts and directories to upload; see
+  Taskcluster documentation.
+* `command`: String. Command to run. This is automatically wrapped in a
+  run_tc command
+* `options`: Optional Object. Options to pass into run_tc
+  - xvfb: Boolean. Enable Xvfb for run
+  - oom-killer: Boolean. Enable xvfb for run
+  - hosts: Boolean. Update hosts file with wpt hosts before run
+  - install-certificates: Boolean. Install wpt certs into OS
+    certificate store for run
+  - browser: List. List of browser names for run
+  - channel: String. Browser channel for run
+* `trigger`: Object. Conditions on which to consider task. One or more
+  of following properties:
+  - branch: List. List of branch names on which to trigger.
+  - pull-request: No value. Trigger for pull request actions
+* `schedule-if`: Optional Object. Conditions on which task should be
+  scheduled given it meets the trigger conditions.
+  - `run-job`: List. Job names for which this task should be considered,
+    matching the output from `./wpt test-jobs`
+* `env`: Optional Object. Environment variables to set when running task.
+* `depends-on`: Optional list. List of task names that must be complete
+  before the current task is scheduled.
+* `description`: String. Task description.
+* `name`: Optional String. Name to use for the task overriding the
+  property name. This is useful in combination with substitutions
+  described below.
+
+## Task Expansions
+
+Using the above syntax it's possble to describe each task
+directly. But typically in a taskgraph there are many common
+properties between tasks so it's tedious and error prone to repeat
+information that's common to multiple tasks. Therefore the taskgraph
+format provides several mechanisms to reuse partial task definitions
+across multiple tasks.
+
+### Components
+
+The other top-level property in the taskgraph format is
+`components`. The value of this property is an object containing named
+partial task definitions. Each task definition may contain a property called
+`use` which is a list of components to use as the basis for the task
+definition. The components list is evaluated in order. If a property
+is not previously defined in the output it is added to the output. If
+it was previously defined, the value is updated according to the type:
+ * Strings and numbers are replaced with a new value
+ * Lists are extended with the additional values
+ * Objects are updated recursively following the above rules
+This means that types must always match between components and the
+final value.
+
+For example
+```
+components:
+  example-1:
+    list_prop:
+      - first
+      - second
+    object_prop:
+      key1: value1
+      key2: base_value
+  example-2:
+    list_prop:
+      - third
+      - fourth
+    object_prop:
+      key3:
+        - value3-1
+
+tasks:
+  - example-task:
+      use:
+        - example-1
+        - example-2
+      object_prop:
+        key2: value2
+        key3:
+          - value3-2
+```
+
+will evaluate to the following task:
+
+```
+example-task:
+  list_prop:
+    - first
+    - second
+    - third
+    - fourth
+  object_prop:
+    key1: value1
+    key2: value2
+    key3:
+      - value3-1
+      - value3-2
+```
+
+Note that components cannot currently define `use` properties of their own.
+
+## Substitutions
+
+Components and tasks can define a property `vars` that holds variables
+which are later substituted into the task definition using the syntax
+`${vars.property-name}`. For example:
+
+```
+components:
+  generic-component:
+    prop: ${vars.value}
+
+tasks:
+  - first:
+      use:
+        - generic-component
+      vars:
+        value: value1
+  - second:
+      use:
+        - generic-component
+      vars:
+        value: value2
+```
+
+Results in the following tasks:
+
+```
+first:
+  prop: value1
+second:
+  prop: value2
+```
+
+## Maps
+
+Instead of defining a task directly, an item in the tasks property may
+be an object with a single property `$map`. This object itself has two
+child properties; `for` and `do`. The value of `for` is a list of
+objects, and the value of `do` is either an object or a list of
+objects. For each object in the `for` property, a set of tasks is
+created by taking a copy of that object for each task in the `do`
+property, updating the object with the properties from the
+corresponding `do` object, using the same rules as for components
+above, and then processing as for a normal task. `$map` rules can also
+be nested.
+
+Note: Although `$map` shares a name with the `$map` used in json-e
+(used. in `.taskcluster.yml`), the semantics are different.
+
+For example
+
+```
+components: {}
+tasks:
+  $map:
+    for:
+      - vars:
+          example: value1
+      - vars:
+          example: value2
+    do:
+      example-${vars.example}
+        prop: ${vars.example}
+```
+
+Results in the tasks
+
+```
+example-value1:
+  prop: value1
+example-value2:
+  prop: value2
+```
+
+Note that in combination with `$map`, variable substitutions are
+applied *twice*; once after the `$map` is evaluated and once after the
+`use` statements are evaluated.
+
+## Chunks
+
+A common requirements for tasks is that they are "chunked" into N
+partial tasks. This is handled specially in the syntax. A top level
+property `chunks` can be used to define the number of individual
+chunks to create for a specific task. Each chunked task is created
+with a `chunks` property set to an object containing an `id` property
+containing the one-based index of the chunk an a `total` property
+containing the total number of chunks. These can be substituted into
+the task definition using the same syntax as for `vars` above
+e.g. `${chunks.id}`. Note that because task names must be unique, it's
+common to specify a `name` property on the task that will override the
+property name e.g.
+
+```
+components: {}
+tasks:
+  - chunked-task:
+      chunks:2
+      command: "task-run --chunk=${chunks.id} --totalChunks=${chunks.total}"
+      name: task-chunk-${chunks.id}
+```
+
+creates tasks:
+
+```
+task-chunk-1:
+  command: "task-run --chunk=1 --totalChunks=2"
+task-chunk-2:
+  command: "task-run --chunk=2 --totalChunks=2"
+```
+
+# Overall processing model
+
+The overall processing model for tasks is as follows:
+ * Evaluate maps
+ * Perform subsitutions
+ * Evaluate use statements
+ * Expand chunks
+ * Perform subsitutions
+
+At each point after maps are evaluated tasks must have a unique name.
diff --git a/tests/wpt/web-platform-tests/tools/taskcluster/__init__.py b/tests/wpt/web-platform-tests/tools/ci/tc/__init__.py
similarity index 100%
rename from tests/wpt/web-platform-tests/tools/taskcluster/__init__.py
rename to tests/wpt/web-platform-tests/tools/ci/tc/__init__.py
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/decision.py b/tests/wpt/web-platform-tests/tools/ci/tc/decision.py
new file mode 100644
index 00000000000..a3c47aa4049
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/decision.py
@@ -0,0 +1,323 @@
+import argparse
+import json
+import logging
+import os
+import re
+import subprocess
+from collections import OrderedDict
+
+import taskcluster
+from six import iteritems, itervalues
+
+from . import taskgraph
+
+
+here = os.path.abspath(os.path.dirname(__file__))
+
+
+logging.basicConfig()
+logger = logging.getLogger()
+
+
+def get_triggers(event):
+    # Set some variables that we use to get the commits on the current branch
+    ref_prefix = "refs/heads/"
+    is_pr = "pull_request" in event
+    branch = None
+    if not is_pr and "ref" in event:
+        branch = event["ref"]
+        if branch.startswith(ref_prefix):
+            branch = branch[len(ref_prefix):]
+
+    return is_pr, branch
+
+
+def fetch_event_data(queue):
+    try:
+        task_id = os.environ["TASK_ID"]
+    except KeyError:
+        logger.warning("Missing TASK_ID environment variable")
+        # For example under local testing
+        return None
+
+    task_data = queue.task(task_id)
+
+    return task_data.get("extra", {}).get("github_event")
+
+
+def filter_triggers(event, all_tasks):
+    is_pr, branch = get_triggers(event)
+    triggered = {}
+    for name, task in iteritems(all_tasks):
+        if "trigger" in task:
+            if is_pr and "pull-request" in task["trigger"]:
+                triggered[name] = task
+            elif branch is not None and "branch" in task["trigger"]:
+                for trigger_branch in task["trigger"]["branch"]:
+                    if (trigger_branch == branch or
+                        trigger_branch.endswith("*") and branch.startswith(trigger_branch[:-1])):
+                        triggered[name] = task
+    logger.info("Triggers match tasks:\n * %s" % "\n * ".join(triggered.keys()))
+    return triggered
+
+
+def get_run_jobs(event):
+    from tools.ci import jobs
+    revish = "%s..%s" % (event["pull_request"]["base"]["sha"]
+                         if "pull_request" in event
+                         else event["before"],
+                         event["pull_request"]["head"]["sha"]
+                         if "pull_request" in event
+                         else event["after"])
+    logger.info("Looking for changes in range %s" % revish)
+    paths = jobs.get_paths(revish=revish)
+    logger.info("Found changes in paths:%s" % "\n".join(paths))
+    path_jobs = jobs.get_jobs(paths)
+    all_jobs = path_jobs | get_extra_jobs(event)
+    logger.info("Including jobs:\n * %s" % "\n * ".join(all_jobs))
+    return all_jobs
+
+
+def get_extra_jobs(event):
+    body = None
+    jobs = set()
+    if "commits" in event and event["commits"]:
+        body = event["commits"][0]["message"]
+    elif "pull_request" in event:
+        body = event["pull_request"]["body"]
+
+    if not body:
+        return jobs
+
+    regexp = re.compile(r"\s*tc-jobs:(.*)$")
+
+    for line in body.splitlines():
+        m = regexp.match(line)
+        if m:
+            items = m.group(1)
+            for item in items.split(","):
+                jobs.add(item.strip())
+            break
+    return jobs
+
+
+def filter_schedule_if(event, tasks):
+    scheduled = {}
+    run_jobs = None
+    for name, task in iteritems(tasks):
+        if "schedule-if" in task:
+            if "run-job" in task["schedule-if"]:
+                if run_jobs is None:
+                    run_jobs = get_run_jobs(event)
+                if "all" in run_jobs or any(item in run_jobs for item in task["schedule-if"]["run-job"]):
+                    scheduled[name] = task
+        else:
+            scheduled[name] = task
+    logger.info("Scheduling rules match tasks:\n * %s" % "\n * ".join(scheduled.keys()))
+    return scheduled
+
+
+def get_fetch_rev(event):
+    is_pr, _ = get_triggers(event)
+    if is_pr:
+        # Try to get the actual rev so that all non-decision tasks are pinned to that
+        ref = "refs/pull/%s/merge" % event["pull_request"]["number"]
+        try:
+            output = subprocess.check_output(["git", "ls-remote", "origin", ref])
+        except subprocess.CalledProcessError:
+            import traceback
+            logger.error(traceback.format_exc())
+            logger.error("Failed to get merge commit sha1")
+            return ref, None
+        if not output:
+            logger.error("Failed to get merge commit")
+            return ref, None
+        return ref, output.split()[0]
+    else:
+        return event["ref"], event["after"]
+
+
+def build_full_command(event, task):
+    fetch_ref, fetch_sha = get_fetch_rev(event)
+    cmd_args = {
+        "task_name": task["name"],
+        "repo_url": event["repository"]["clone_url"],
+        "fetch_ref": fetch_ref,
+        "task_cmd": task["command"],
+        "install_str": "",
+    }
+
+    options = task.get("options", {})
+    options_args = []
+    if fetch_sha is not None:
+        options_args.append("--rev=%s" % fetch_sha)
+    if options.get("oom-killer"):
+        options_args.append("--oom-killer")
+    if options.get("xvfb"):
+        options_args.append("--xvfb")
+    if not options.get("hosts"):
+        options_args.append("--no-hosts")
+    else:
+        options_args.append("--hosts")
+    # Check out the expected SHA unless it is overridden (e.g. to base_head).
+    if options.get("checkout"):
+        options_args.append("--checkout=%s" % options["checkout"])
+    else:
+        options_args.append("--checkout=%s" % fetch_sha)
+    for browser in options.get("browser", []):
+        options_args.append("--browser=%s" % browser)
+    if options.get("channel"):
+        options_args.append("--channel=%s" % options["channel"])
+    if options.get("install-certificates"):
+        options_args.append("--install-certificates")
+
+    cmd_args["options_str"] = " ".join(str(item) for item in options_args)
+
+    install_packages = task.get("install")
+    if install_packages:
+        install_items = ["apt update -qqy"]
+        install_items.extend("apt install -qqy %s" % item
+                             for item in install_packages)
+        cmd_args["install_str"] = "\n".join("sudo %s;" % item for item in install_items)
+
+    return ["/bin/bash",
+            "--login",
+            "-c",
+            """
+~/start.sh \
+  %(repo_url)s \
+  %(fetch_ref)s;
+%(install_str)s
+cd web-platform-tests;
+./tools/ci/run_tc.py %(options_str)s -- %(task_cmd)s;
+""" % cmd_args]
+
+
+def get_owner(event):
+    pusher = event.get("pusher", {}).get("email", "")
+    if "@" in pusher:
+        return pusher
+    return "web-platform-tests@users.noreply.github.com"
+
+
+def create_tc_task(event, task, taskgroup_id, depends_on_ids):
+    command = build_full_command(event, task)
+    task_id = taskcluster.slugId()
+    task_data = {
+        "taskGroupId": taskgroup_id,
+        "created": taskcluster.fromNowJSON(""),
+        "deadline": taskcluster.fromNowJSON(task["deadline"]),
+        "provisionerId": task["provisionerId"],
+        "schedulerId": task["schedulerId"],
+        "workerType": task["workerType"],
+        "metadata": {
+            "name": task["name"],
+            "description": task.get("description", ""),
+            "owner": get_owner(event),
+            "source": event["repository"]["clone_url"]
+        },
+        "payload": {
+            "artifacts": task.get("artifacts"),
+            "command": command,
+            "image": task.get("image"),
+            "maxRunTime": task.get("maxRunTime"),
+            "env": task.get("env", {}),
+        },
+        "extra": {
+            "github_event": json.dumps(event)
+        }
+    }
+    if depends_on_ids:
+        task_data["dependencies"] = depends_on_ids
+        task_data["requires"] = "all-completed"
+    return task_id, task_data
+
+
+def build_task_graph(event, all_tasks, tasks):
+    task_id_map = OrderedDict()
+    taskgroup_id = os.environ.get("TASK_ID", taskcluster.slugId())
+
+    def add_task(task_name, task):
+        depends_on_ids = []
+        if "depends-on" in task:
+            for depends_name in task["depends-on"]:
+                if depends_name not in task_id_map:
+                    add_task(depends_name,
+                             all_tasks[depends_name])
+                depends_on_ids.append(task_id_map[depends_name][0])
+        task_id, task_data = create_tc_task(event, task, taskgroup_id, depends_on_ids)
+        task_id_map[task_name] = (task_id, task_data)
+
+    for task_name, task in iteritems(tasks):
+        add_task(task_name, task)
+
+    return task_id_map
+
+
+def create_tasks(queue, task_id_map):
+    for (task_id, task_data) in itervalues(task_id_map):
+        queue.createTask(task_id, task_data)
+
+
+def get_event(queue, event_path):
+    if event_path is not None:
+        try:
+            with open(event_path) as f:
+                event_str = f.read()
+        except IOError:
+            logger.error("Missing event file at path %s" % event_path)
+            raise
+    elif "TASK_EVENT" in os.environ:
+        event_str = os.environ["TASK_EVENT"]
+    else:
+        event_str = fetch_event_data(queue)
+    if not event_str:
+        raise ValueError("Can't find GitHub event definition; for local testing pass --event-path")
+    try:
+        return json.loads(event_str)
+    except ValueError:
+        logger.error("Event was not valid JSON")
+        raise
+
+
+def decide(event):
+    all_tasks = taskgraph.load_tasks_from_path(os.path.join(here, "tasks", "test.yml"))
+
+    triggered_tasks = filter_triggers(event, all_tasks)
+    scheduled_tasks = filter_schedule_if(event, triggered_tasks)
+
+    logger.info("UNSCHEDULED TASKS:\n  %s" % "\n  ".join(sorted(set(all_tasks.keys()) -
+                                                            set(scheduled_tasks.keys()))))
+    logger.info("SCHEDULED TASKS:\n  %s" % "\n  ".join(sorted(scheduled_tasks.keys())))
+
+    task_id_map = build_task_graph(event, all_tasks, scheduled_tasks)
+    return task_id_map
+
+
+def get_parser():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--event-path",
+                        help="Path to file containing serialized GitHub event")
+    parser.add_argument("--dry-run", action="store_true",
+                        help="Don't actually create the tasks, just output the tasks that "
+                        "would be created")
+    parser.add_argument("--tasks-path",
+                        help="Path to file in which to write payload for all scheduled tasks")
+    return parser
+
+
+def run(venv, **kwargs):
+    queue = taskcluster.Queue({'rootUrl': os.environ['TASKCLUSTER_PROXY_URL']})
+    event = get_event(queue, event_path=kwargs["event_path"])
+
+    task_id_map = decide(event)
+
+    try:
+        if not kwargs["dry_run"]:
+            create_tasks(queue, task_id_map)
+        else:
+            print(json.dumps(task_id_map, indent=2))
+    finally:
+        if kwargs["tasks_path"]:
+            with open(kwargs["tasks_path"], "w") as f:
+                json.dump(task_id_map, f, indent=2)
diff --git a/tests/wpt/web-platform-tests/tools/ci/tcdownload.py b/tests/wpt/web-platform-tests/tools/ci/tc/download.py
similarity index 99%
rename from tests/wpt/web-platform-tests/tools/ci/tcdownload.py
rename to tests/wpt/web-platform-tests/tools/ci/tc/download.py
index 256726da7b5..359ec334050 100644
--- a/tests/wpt/web-platform-tests/tools/ci/tcdownload.py
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/download.py
@@ -15,6 +15,7 @@ logger = logging.getLogger("tc-download")
 # be https://community-tc.services.mozilla.com)
 TASKCLUSTER_ROOT_URL = 'https://taskcluster.net'
 
+
 def get_parser():
     parser = argparse.ArgumentParser()
     parser.add_argument("--ref", action="store", default="master",
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/taskgraph.py b/tests/wpt/web-platform-tests/tools/ci/tc/taskgraph.py
new file mode 100644
index 00000000000..6a6cb497f2d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/taskgraph.py
@@ -0,0 +1,170 @@
+import json
+import os
+import re
+from copy import deepcopy
+
+import six
+import yaml
+from six import iteritems
+
+here = os.path.dirname(__file__)
+
+
+def first(iterable):
+    # First item from a list or iterator
+    if not hasattr(iterable, "next"):
+        if hasattr(iterable, "__iter__"):
+            iterable = iter(iterable)
+        else:
+            raise ValueError("Object isn't iterable")
+    return next(iterable)
+
+
+def load_task_file(path):
+    with open(path) as f:
+        return yaml.safe_load(f)
+
+
+def update_recursive(data, update_data):
+    for key, value in iteritems(update_data):
+        if key not in data:
+            data[key] = value
+        else:
+            initial_value = data[key]
+            if isinstance(value, dict):
+                if not isinstance(initial_value, dict):
+                    raise ValueError("Variable %s has inconsistent types "
+                                     "(expected object)" % key)
+                update_recursive(initial_value, value)
+            elif isinstance(value, list):
+                if not isinstance(initial_value, list):
+                    raise ValueError("Variable %s has inconsistent types "
+                                     "(expected list)" % key)
+                initial_value.extend(value)
+            else:
+                data[key] = value
+
+
+def resolve_use(task_data, templates):
+    rv = {}
+    if "use" in task_data:
+        for template_name in task_data["use"]:
+            update_recursive(rv, deepcopy(templates[template_name]))
+    update_recursive(rv, task_data)
+    rv.pop("use", None)
+    return rv
+
+
+def resolve_name(task_data, default_name):
+    if "name" not in task_data:
+        task_data["name"] = default_name
+    return task_data
+
+
+def resolve_chunks(task_data):
+    if "chunks" not in task_data:
+        return [task_data]
+    rv = []
+    total_chunks = task_data["chunks"]
+    for i in range(1, total_chunks + 1):
+        chunk_data = deepcopy(task_data)
+        chunk_data["chunks"] = {"id": i,
+                                "total": total_chunks}
+        rv.append(chunk_data)
+    return rv
+
+
+def replace_vars(input_string, variables):
+    # TODO: support replacing as a non-string type?
+    variable_re = re.compile(r"(?<!\\)\${([^}]+)}")
+
+    def replacer(m):
+        var = m.group(1).split(".")
+        repl = variables
+        for part in var:
+            try:
+                repl = repl[part]
+            except Exception:
+                # Don't substitute
+                return m.group(0)
+        return str(repl)
+
+    return variable_re.sub(replacer, input_string)
+
+
+def sub_variables(data, variables):
+    if isinstance(data, six.string_types):
+        return replace_vars(data, variables)
+    if isinstance(data, list):
+        return [sub_variables(item, variables) for item in data]
+    if isinstance(data, dict):
+        return {key: sub_variables(value, variables)
+                for key, value in iteritems(data)}
+    return data
+
+
+def substitute_variables(task):
+    variables = {"vars": task.get("vars", {}),
+                 "chunks": task.get("chunks", {})}
+
+    return sub_variables(task, variables)
+
+
+def expand_maps(task):
+    name = first(task.keys())
+    if name != "$map":
+        return [task]
+
+    map_data = task["$map"]
+    if set(map_data.keys()) != set(["for", "do"]):
+        raise ValueError("$map objects must have exactly two properties named 'for' "
+                         "and 'do' (got %s)" % ("no properties" if not map_data.keys()
+                                                else ", ". join(map_data.keys())))
+    rv = []
+    for for_data in map_data["for"]:
+        do_items = map_data["do"]
+        if not isinstance(do_items, list):
+            do_items = expand_maps(do_items)
+        for do_data in do_items:
+            task_data = deepcopy(for_data)
+            if len(do_data.keys()) != 1:
+                raise ValueError("Each item in the 'do' list must be an object "
+                                 "with a single property")
+            name = first(do_data.keys())
+            update_recursive(task_data, deepcopy(do_data[name]))
+            rv.append({name: task_data})
+    return rv
+
+
+def load_tasks(tasks_data):
+    map_resolved_tasks = {}
+    tasks = []
+
+    for task in tasks_data["tasks"]:
+        if len(task.keys()) != 1:
+            raise ValueError("Each task must be an object with a single property")
+        for task in expand_maps(task):
+            if len(task.keys()) != 1:
+                raise ValueError("Each task must be an object with a single property")
+            name = first(task.keys())
+            data = task[name]
+            new_name = sub_variables(name, {"vars": data.get("vars", {})})
+            if new_name in map_resolved_tasks:
+                raise ValueError("Got duplicate task name %s" % new_name)
+            map_resolved_tasks[new_name] = substitute_variables(data)
+
+    for task_default_name, data in iteritems(map_resolved_tasks):
+        task = resolve_use(data, tasks_data["components"])
+        task = resolve_name(task, task_default_name)
+        tasks.extend(resolve_chunks(task))
+
+    tasks = [substitute_variables(task_data) for task_data in tasks]
+    return {task["name"]: task for task in tasks}
+
+
+def load_tasks_from_path(path):
+    return load_tasks(load_task_file(path))
+
+
+def run(venv, **kwargs):
+    print(json.dumps(load_tasks_from_path(os.path.join(here, "tasks", "test.yml")), indent=2))
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml b/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml
new file mode 100644
index 00000000000..a64ef374921
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/tasks/test.yml
@@ -0,0 +1,370 @@
+components:
+  wpt-base:
+    provisionerId: proj-wpt
+    workerType: ci
+    schedulerId: taskcluster-github
+    deadline: "24 hours"
+    image: harjgam/web-platform-tests:0.33
+    maxRunTime: 7200
+    artifacts:
+      public/results:
+        path: /home/test/artifacts
+        type: directory
+
+  wpt-testharness:
+    chunks: 16
+    vars:
+      test-type: testharness
+
+  wpt-reftest:
+    chunks: 5
+    vars:
+      test-type: reftest
+
+  wpt-wdspec:
+    chunks: 1
+    vars:
+      test-type: wdspec
+
+  run-options:
+    options:
+      xvfb: true
+      oom-killer: true
+      hosts: true
+      install-certificates: true
+
+  wpt-run:
+    name: wpt-${vars.browser}-${vars.channel}-${vars.suite}-${chunks.id}
+    options:
+      browser:
+        - ${vars.browser}
+      channel: ${vars.channel}
+    command: >-
+      ./tools/ci/taskcluster-run.py
+      ${vars.browser}
+      --
+      --channel=${vars.channel}
+      --log-wptreport=../artifacts/wpt_report.json
+      --log-wptscreenshot=../artifacts/wpt_screenshot.txt
+      --no-fail-on-unexpected
+      --this-chunk=${chunks.id}
+      --total-chunks=${chunks.total}
+      --test-type=${vars.suite}
+  trigger-master:
+    trigger:
+      branch:
+        - master
+
+  trigger-push:
+    trigger:
+      branch:
+        - triggers/${vars.browser}_${vars.channel}
+
+  trigger-daily:
+    trigger:
+      branch:
+        - epochs/daily
+
+  trigger-weekly:
+    trigger:
+      branch:
+        - epochs/weekly
+
+  trigger-pr:
+    trigger:
+      pull-request:
+
+  browser-firefox:
+    depends-on:
+      - download-firefox-${vars.channel}
+
+  browser-webkitgtk_minibrowser: {}
+
+  browser-chrome: {}
+
+  tox-python2:
+    env:
+      TOXENV: py27
+      PY_COLORS: 0
+
+  tox-python3:
+    env:
+      TOXENV: py36
+      PY_COLORS: 0
+    install:
+      - python3-pip
+
+  tests-affected:
+    options:
+      browser:
+        - ${vars.browser}
+      channel: ${vars.channel}
+    schedule-if:
+      run-job:
+        - affected_tests
+
+tasks:
+  # Run full suites on push
+  - $map:
+      for:
+        - vars:
+            suite: testharness
+        - vars:
+            suite: reftest
+        - vars:
+            suite: wdspec
+      do:
+        $map:
+          for:
+            - vars:
+                browser: firefox
+                channel: nightly
+              use:
+                - trigger-master
+                - trigger-push
+            - vars:
+                browser: firefox
+                channel: beta
+              use:
+                - trigger-weekly
+                - trigger-push
+            - vars:
+                browser: firefox
+                channel: stable
+              use:
+                - trigger-daily
+                - trigger-push
+            - vars:
+                browser: chrome
+                channel: dev
+              use:
+                - trigger-master
+                - trigger-push
+            - vars:
+                browser: chrome
+                channel: beta
+              use:
+                - trigger-weekly
+                - trigger-push
+            - vars:
+                browser: chrome
+                channel: stable
+              use:
+                - trigger-daily
+                - trigger-push
+            - vars:
+                browser: webkitgtk_minibrowser
+                channel: nightly
+              use:
+                - trigger-daily
+                - trigger-push
+            - vars:
+                browser: webkitgtk_minibrowser
+                channel: stable
+              use:
+                - trigger-weekly
+                - trigger-push
+
+          do:
+            - ${vars.browser}-${vars.channel}-${vars.suite}:
+                use:
+                  - wpt-base
+                  - run-options
+                  - wpt-run
+                  - browser-${vars.browser}
+                  - wpt-${vars.suite}
+                description: >-
+                  A subset of WPT's "${vars.suite}" tests (chunk number ${chunks.id}
+                  of ${chunks.total}), run in the ${vars.channel} release of
+                  ${vars.browser}.
+
+  - $map:
+      for:
+        - vars:
+            browser: firefox
+            channel: nightly
+        - vars:
+            browser: chrome
+            channel: dev
+      do:
+        - wpt-${vars.browser}-${vars.channel}-stability:
+            use:
+              - wpt-base
+              - run-options
+              - browser-${vars.browser}
+              - trigger-pr
+              - tests-affected
+            description: >-
+              Verify that all tests affected by a pull request are stable
+              when executed in ${vars.browser}.
+            command: >-
+              ./tools/ci/taskcluster-run.py
+              --commit-range base_head
+              ${vars.browser}
+              --
+              --channel=${vars.channel}
+              --verify
+
+        - wpt-${vars.browser}-${vars.channel}-results:
+            use:
+              - wpt-base
+              - run-options
+              - browser-${vars.browser}
+              - trigger-pr
+              - tests-affected
+            description: >-
+              Collect results for all tests affected by a pull request in
+              ${vars.browser}.
+            command: >-
+              ./tools/ci/taskcluster-run.py
+              --commit-range base_head
+              ${vars.browser}
+              --
+              --channel=${vars.channel}
+              --no-fail-on-unexpected
+              --log-wptreport=../artifacts/wpt_report.json
+              --log-wptscreenshot=../artifacts/wpt_screenshot.txt
+
+        - wpt-${vars.browser}-${vars.channel}-results-without-changes:
+            use:
+              - wpt-base
+              - run-options
+              - browser-${vars.browser}
+              - trigger-pr
+              - tests-affected
+            options:
+              checkout: base_head
+            description: >-
+              Collect results for all tests affected by a pull request in
+              ${vars.browser} but without the changes in the PR.
+            command: >-
+              ./tools/ci/taskcluster-run.py
+              --commit-range task_head
+              ${vars.browser}
+              --
+              --channel=${vars.channel}
+              --no-fail-on-unexpected
+              --log-wptreport=../artifacts/wpt_report.json
+              --log-wptscreenshot=../artifacts/wpt_screenshot.txt
+  - $map:
+      for:
+        - vars:
+            channel: nightly
+        - vars:
+            channel: beta
+        - vars:
+            channel: stable
+      do:
+        download-firefox-${vars.channel}:
+          use:
+            - wpt-base
+          command: "./wpt install --download-only --destination /home/test/artifacts/ --channel=${vars.channel} firefox browser"
+
+  - lint:
+      use:
+        - wpt-base
+        - trigger-master
+        - trigger-pr
+      description: >-
+        Lint for wpt-specific requirements
+      command: "./wpt lint --all"
+
+  - update-built:
+      use:
+        - wpt-base
+        - trigger-pr
+      schedule-if:
+        run-job:
+          - update_built
+      command: "./tools/ci/ci_built_diff.sh"
+
+  - tools/ unittests (Python 2):
+      use:
+        - wpt-base
+        - trigger-pr
+        - tox-python2
+      description: >-
+        Unit tests for tools running under Python 2.7, excluding wptrunner
+      command: ./tools/ci/ci_tools_unittest.sh
+      env:
+        HYPOTHESIS_PROFILE: ci
+      schedule-if:
+        run-job:
+          - tools_unittest
+
+  - tools/ unittests (Python 3):
+      description: >-
+        Unit tests for tools running under Python 3, excluding wptrunner
+      use:
+        - wpt-base
+        - trigger-pr
+        - tox-python3
+      command: ./tools/ci/ci_tools_unittest.sh
+      env:
+        HYPOTHESIS_PROFILE: ci
+      schedule-if:
+        run-job:
+          - tools_unittest
+
+  - tools/wpt/ tests:
+      description: >-
+        Integration tests for wpt commands
+      use:
+        - wpt-base
+        - trigger-pr
+        - tox-python2
+      command: ./tools/ci/ci_wpt.sh
+      install:
+        - libnss3-tools
+      options:
+        oom-killer: true
+        browser:
+          - firefox
+          - chrome
+        channel: experimental
+        xvfb: true
+        hosts: true
+      schedule-if:
+        run-job:
+          - wpt_integration
+
+  - resources/ tests:
+      description: >-
+        Tests for testharness.js and other files in resources/
+      use:
+        - wpt-base
+        - trigger-pr
+        - tox-python2
+      command: ./tools/ci/ci_resources_unittest.sh
+      options:
+        browser:
+          - firefox
+        xvfb: true
+        hosts: true
+      schedule-if:
+        run-job:
+          - resources_unittest
+
+  - infrastructure/ tests:
+      description: >-
+        Smoketests for wptrunner
+      use:
+        - wpt-base
+        - trigger-pr
+        - tox-python2
+      command: ./tools/ci/ci_wptrunner_infrastructure.sh
+      install:
+        - libnss3-tools
+        - libappindicator1
+        - fonts-liberation
+      options:
+        oom-killer: true
+        browser:
+          - firefox
+          - chrome
+        channel: experimental
+        xvfb: true
+        hosts: false
+      schedule-if:
+        run-job:
+          - wptrunner_infrastructure
diff --git a/tests/wpt/web-platform-tests/tools/taskcluster/testdata/master_push_event.json b/tests/wpt/web-platform-tests/tools/ci/tc/testdata/master_push_event.json
similarity index 100%
rename from tests/wpt/web-platform-tests/tools/taskcluster/testdata/master_push_event.json
rename to tests/wpt/web-platform-tests/tools/ci/tc/testdata/master_push_event.json
diff --git a/tests/wpt/web-platform-tests/tools/taskcluster/testdata/pr_event.json b/tests/wpt/web-platform-tests/tools/ci/tc/testdata/pr_event.json
similarity index 100%
rename from tests/wpt/web-platform-tests/tools/taskcluster/testdata/pr_event.json
rename to tests/wpt/web-platform-tests/tools/ci/tc/testdata/pr_event.json
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/testdata/pr_event_tests_affected.json b/tests/wpt/web-platform-tests/tools/ci/tc/testdata/pr_event_tests_affected.json
new file mode 100644
index 00000000000..792ea1bccce
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/testdata/pr_event_tests_affected.json
@@ -0,0 +1,505 @@
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+    "created_at": "2019-11-21T23:53:58Z",
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diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_decision.py b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_decision.py
new file mode 100644
index 00000000000..425b5829edd
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_decision.py
@@ -0,0 +1,54 @@
+import mock
+import pytest
+
+from tools.ci.tc import decision
+from six import iteritems
+
+
+@pytest.mark.parametrize("run_jobs,tasks,expected", [
+    ([], {"task-no-schedule-if": {}}, ["task-no-schedule-if"]),
+    ([], {"task-schedule-if-no-run-job": {"schedule-if": {}}}, []),
+    (["job"],
+     {"job-present": {"schedule-if": {"run-job": ["other-job", "job"]}}},
+     ["job-present"]),
+    (["job"], {"job-missing": {"schedule-if": {"run-job": ["other-job"]}}}, []),
+    (["all"], {"job-all": {"schedule-if": {"run-job": ["other-job"]}}}, ["job-all"]),
+    (["job"],
+     {"job-1": {"schedule-if": {"run-job": ["job"]}},
+      "job-2": {"schedule-if": {"run-job": ["other-job"]}}},
+     ["job-1"]),
+])
+def test_filter_schedule_if(run_jobs, tasks, expected):
+    with mock.patch("tools.ci.tc.decision.get_run_jobs",
+                    return_value=run_jobs) as get_run_jobs:
+        assert (decision.filter_schedule_if({}, tasks) ==
+                {name: tasks[name] for name in expected})
+        get_run_jobs.call_count in (0, 1)
+
+
+@pytest.mark.parametrize("msg,expected", [
+    ("Some initial line\n\ntc-jobs:foo,bar", {"foo", "bar"}),
+    ("Some initial line\n\ntc-jobs:foo, bar", {"foo", "bar"}),
+    ("tc-jobs:foo, bar   \nbaz", {"foo", "bar"}),
+    ("tc-jobs:all", {"all"}),
+    ("", set()),
+    ("tc-jobs:foo\ntc-jobs:bar", {"foo"})])
+@pytest.mark.parametrize("event", [
+    {"commits": [{"message": "<message>"}]},
+    {"pull_request": {"body": "<message>"}}
+])
+def test_extra_jobs_pr(msg, expected, event):
+    def sub(obj):
+        """Copy obj, except if it's a string with the value <message>
+        replace it with the value of the msg argument"""
+        if isinstance(obj, dict):
+            return {key: sub(value) for (key, value) in iteritems(obj)}
+        elif isinstance(obj, list):
+            return [sub(value) for value in obj]
+        elif obj == "<message>":
+            return msg
+        return obj
+
+    event = sub(event)
+
+    assert decision.get_extra_jobs(event) == expected
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_taskgraph.py b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_taskgraph.py
new file mode 100644
index 00000000000..dd8535bb647
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_taskgraph.py
@@ -0,0 +1,146 @@
+import pytest
+import yaml
+
+from tools.ci.tc import taskgraph
+
+@pytest.mark.parametrize("data, update_data, expected", [
+    ({"a": 1}, {"b": 2}, {"a": 1, "b": 2}),
+    ({"a": 1}, {"a": 2}, {"a": 2}),
+    ({"a": [1]}, {"a": [2]}, {"a": [1, 2]}),
+    ({"a": {"b": 1, "c": 2}}, {"a": {"b": 2, "d": 3}}, {"a": {"b": 2, "c": 2, "d": 3}}),
+    ({"a": {"b": [1]}}, {"a": {"b": [2]}}, {"a": {"b": [1, 2]}}),
+]
+)
+def test_update_recursive(data, update_data, expected):
+    taskgraph.update_recursive(data, update_data)
+    assert data == expected
+
+
+def test_use():
+    data = """
+components:
+  component1:
+    a: 1
+    b: [1]
+    c: "c"
+  component2:
+    a: 2
+    b: [2]
+    d: "d"
+tasks:
+  - task1:
+      use:
+       - component1
+       - component2
+      b: [3]
+      c: "e"
+"""
+    tasks_data = yaml.safe_load(data)
+    assert taskgraph.load_tasks(tasks_data) == {
+        "task1": {
+            "a": 2,
+            "b": [1,2,3],
+            "c": "e",
+            "d": "d",
+            "name": "task1"
+        }
+    }
+
+
+def test_var():
+    data = """
+components:
+  component1:
+    a: ${vars.value}
+tasks:
+  - task1:
+      use:
+       - component1
+      vars:
+        value: 1
+"""
+    tasks_data = yaml.safe_load(data)
+    assert taskgraph.load_tasks(tasks_data) == {
+        "task1": {
+            "a": "1",
+            "vars": {"value": 1},
+            "name": "task1"
+        }
+    }
+
+
+def test_map():
+    data = """
+components: {}
+tasks:
+ - $map:
+     for:
+       - vars:
+           a: 1
+         b: [1]
+       - vars:
+           a: 2
+         b: [2]
+     do:
+       - task1-${vars.a}:
+           a: ${vars.a}
+           b: [3]
+       - task2-${vars.a}:
+           a: ${vars.a}
+           b: [4]
+"""
+    tasks_data = yaml.safe_load(data)
+    assert taskgraph.load_tasks(tasks_data) == {
+        "task1-1": {
+            "a": "1",
+            "b": [1, 3],
+            "vars": {"a": 1},
+            "name": "task1-1"
+        },
+        "task1-2": {
+            "a": "2",
+            "b": [2, 3],
+            "vars": {"a": 2},
+            "name": "task1-2"
+        },
+        "task2-1": {
+            "a": "1",
+            "b": [1, 4],
+            "vars": {"a": 1},
+            "name": "task2-1"
+        },
+        "task2-2": {
+            "a": "2",
+            "b": [2, 4],
+            "vars": {"a": 2},
+            "name": "task2-2"
+        },
+
+    }
+
+
+def test_chunks():
+    data = """
+components: {}
+tasks:
+  - task1:
+      name: task1-${chunks.id}
+      chunks: 2
+"""
+    tasks_data = yaml.safe_load(data)
+    assert taskgraph.load_tasks(tasks_data) == {
+        "task1-1": {
+            "name": "task1-1",
+            "chunks": {
+                "id": 1,
+                "total": 2
+            }
+        },
+        "task1-2": {
+            "name": "task1-2",
+            "chunks": {
+                "id": 2,
+                "total": 2
+            }
+        }
+    }
diff --git a/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_valid.py b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_valid.py
new file mode 100644
index 00000000000..9480178206d
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/ci/tc/tests/test_valid.py
@@ -0,0 +1,152 @@
+import json
+import os
+
+import jsone
+import mock
+import pytest
+import requests
+import sys
+import yaml
+from jsonschema import validate
+
+from tools.ci.tc import decision
+
+here = os.path.dirname(__file__)
+root = os.path.abspath(os.path.join(here, "..", "..", "..", ".."))
+
+
+def data_path(filename):
+    return os.path.join(here, "..", "testdata", filename)
+
+
+@pytest.mark.xfail(sys.version_info.major == 2,
+                   reason="taskcluster library has an encoding bug "
+                   "https://github.com/taskcluster/json-e/issues/338")
+def test_verify_taskcluster_yml():
+    """Verify that the json-e in the .taskcluster.yml is valid"""
+    with open(os.path.join(root, ".taskcluster.yml")) as f:
+        template = yaml.safe_load(f)
+
+    events = [("pr_event.json", "github-pull-request", "Pull Request"),
+              ("master_push_event.json", "github-push", "Push to master")]
+
+    for filename, tasks_for, title in events:
+        with open(data_path(filename)) as f:
+            event = json.load(f)
+
+        context = {"tasks_for": tasks_for,
+                   "event": event,
+                   "as_slugid": lambda x: x}
+
+        jsone.render(template, context)
+
+
+def test_verify_payload():
+    """Verify that the decision task produces tasks with a valid payload"""
+    from tools.ci.tc.decision import decide
+
+    create_task_schema = requests.get(
+        "https://raw.githubusercontent.com/taskcluster/taskcluster/blob/master/services/queue/schemas/v1/create-task-request.yml")
+    create_task_schema = yaml.safe_load(create_task_schema.content)
+
+    payload_schema = requests.get("https://raw.githubusercontent.com/taskcluster/docker-worker/master/schemas/v1/payload.json").json()
+
+    jobs = ["lint",
+            "manifest_upload",
+            "resources_unittest",
+            "tools_unittest",
+            "wpt_integration",
+            "wptrunner_infrastructure",
+            "wptrunner_unittest"]
+
+    for filename in ["pr_event.json", "master_push_event.json"]:
+        with open(data_path(filename)) as f:
+            event = json.load(f)
+
+        with mock.patch("tools.ci.tc.decision.get_fetch_rev", return_value=(event["after"], None)):
+            with mock.patch("tools.ci.tc.decision.get_run_jobs", return_value=set(jobs)):
+                task_id_map = decide(event)
+        for name, (task_id, task_data) in task_id_map.items():
+            try:
+                validate(instance=task_data, schema=create_task_schema)
+                validate(instance=task_data["payload"], schema=payload_schema)
+            except Exception as e:
+                print("Validation failed for task '%s':\n%s" % (name, json.dumps(task_data, indent=2)))
+                raise e
+
+
+@pytest.mark.parametrize("event_path,is_pr,files_changed,expected", [
+    ("master_push_event.json", False, None,
+     {'download-firefox-nightly',
+      'wpt-firefox-nightly-testharness-1',
+      'wpt-firefox-nightly-testharness-2',
+      'wpt-firefox-nightly-testharness-3',
+      'wpt-firefox-nightly-testharness-4',
+      'wpt-firefox-nightly-testharness-5',
+      'wpt-firefox-nightly-testharness-6',
+      'wpt-firefox-nightly-testharness-7',
+      'wpt-firefox-nightly-testharness-8',
+      'wpt-firefox-nightly-testharness-9',
+      'wpt-firefox-nightly-testharness-10',
+      'wpt-firefox-nightly-testharness-11',
+      'wpt-firefox-nightly-testharness-12',
+      'wpt-firefox-nightly-testharness-13',
+      'wpt-firefox-nightly-testharness-14',
+      'wpt-firefox-nightly-testharness-15',
+      'wpt-firefox-nightly-testharness-16',
+      'wpt-chrome-dev-testharness-1',
+      'wpt-chrome-dev-testharness-2',
+      'wpt-chrome-dev-testharness-3',
+      'wpt-chrome-dev-testharness-4',
+      'wpt-chrome-dev-testharness-5',
+      'wpt-chrome-dev-testharness-6',
+      'wpt-chrome-dev-testharness-7',
+      'wpt-chrome-dev-testharness-8',
+      'wpt-chrome-dev-testharness-9',
+      'wpt-chrome-dev-testharness-10',
+      'wpt-chrome-dev-testharness-11',
+      'wpt-chrome-dev-testharness-12',
+      'wpt-chrome-dev-testharness-13',
+      'wpt-chrome-dev-testharness-14',
+      'wpt-chrome-dev-testharness-15',
+      'wpt-chrome-dev-testharness-16',
+      'wpt-firefox-nightly-reftest-1',
+      'wpt-firefox-nightly-reftest-2',
+      'wpt-firefox-nightly-reftest-3',
+      'wpt-firefox-nightly-reftest-4',
+      'wpt-firefox-nightly-reftest-5',
+      'wpt-chrome-dev-reftest-1',
+      'wpt-chrome-dev-reftest-2',
+      'wpt-chrome-dev-reftest-3',
+      'wpt-chrome-dev-reftest-4',
+      'wpt-chrome-dev-reftest-5',
+      'wpt-firefox-nightly-wdspec-1',
+      'wpt-chrome-dev-wdspec-1',
+      'lint'}),
+    ("pr_event.json", True, {".taskcluster.yml",".travis.yml","tools/ci/start.sh"},
+     {'lint',
+      'tools/ unittests (Python 2)',
+      'tools/ unittests (Python 3)',
+      'tools/wpt/ tests',
+      'resources/ tests',
+      'infrastructure/ tests'}),
+    # More tests are affected in the actual PR but it shouldn't affect the scheduled tasks
+    ("pr_event_tests_affected.json", True, {"layout-instability/clip-negative-bottom-margin.html",
+                                            "layout-instability/composited-element-movement.html"},
+     {'download-firefox-nightly',
+      'wpt-firefox-nightly-stability',
+      'wpt-firefox-nightly-results',
+      'wpt-firefox-nightly-results-without-changes',
+      'wpt-chrome-dev-stability',
+      'wpt-chrome-dev-results',
+      'wpt-chrome-dev-results-without-changes',
+      'lint'}),
+])
+def test_schedule_tasks(event_path, is_pr, files_changed, expected):
+    with mock.patch("tools.ci.tc.decision.get_fetch_rev", return_value=(is_pr, None)):
+        with mock.patch("tools.wpt.testfiles.repo_files_changed",
+                        return_value=files_changed):
+            with open(data_path(event_path)) as event_file:
+                event = json.load(event_file)
+                scheduled = decision.decide(event)
+                assert set(scheduled.keys()) == expected
diff --git a/tests/wpt/web-platform-tests/tools/ci/tests/test_run_tc.py b/tests/wpt/web-platform-tests/tools/ci/tests/test_run_tc.py
deleted file mode 100644
index a72dcfe5cfd..00000000000
--- a/tests/wpt/web-platform-tests/tools/ci/tests/test_run_tc.py
+++ /dev/null
@@ -1,33 +0,0 @@
-import pytest
-
-from six import iteritems
-
-from tools.ci import run_tc
-
-
-@pytest.mark.parametrize("msg,expected", [
-    ("Some initial line\n\ntc-jobs:foo,bar", {"foo", "bar"}),
-    ("Some initial line\n\ntc-jobs:foo, bar", {"foo", "bar"}),
-    ("tc-jobs:foo, bar   \nbaz", {"foo", "bar"}),
-    ("tc-jobs:all", {"all"}),
-    ("", set()),
-    ("tc-jobs:foo\ntc-jobs:bar", {"foo"})])
-@pytest.mark.parametrize("event", [
-    {"commits": [{"message": "<message>"}]},
-    {"pull_request": {"body": "<message>"}}
-])
-def test_extra_jobs_pr(msg, expected, event):
-    def sub(obj):
-        """Copy obj, except if it's a string with the value <message>
-        replace it with the value of the msg argument"""
-        if isinstance(obj, dict):
-            return {key: sub(value) for (key, value) in iteritems(obj)}
-        elif isinstance(obj, list):
-            return [sub(value) for value in obj]
-        elif obj == "<message>":
-            return msg
-        return obj
-
-    event = sub(event)
-
-    assert run_tc.get_extra_jobs(event) == expected
diff --git a/tests/wpt/web-platform-tests/tools/docker/frontend.py b/tests/wpt/web-platform-tests/tools/docker/frontend.py
index c4a20734582..976156cf65a 100644
--- a/tests/wpt/web-platform-tests/tools/docker/frontend.py
+++ b/tests/wpt/web-platform-tests/tools/docker/frontend.py
@@ -29,6 +29,8 @@ def run(*args, **kwargs):
         build()
 
     args = ["docker", "run"]
+    args.extend(["--security-opt", "seccomp:%s" %
+                 os.path.join(wpt_root, "tools", "docker", "seccomp.json")])
     if kwargs["privileged"]:
         args.append("--privileged")
     if kwargs["checkout"]:
diff --git a/tests/wpt/web-platform-tests/tools/docker/seccomp.json b/tests/wpt/web-platform-tests/tools/docker/seccomp.json
new file mode 100644
index 00000000000..8e8274ce328
--- /dev/null
+++ b/tests/wpt/web-platform-tests/tools/docker/seccomp.json
@@ -0,0 +1,798 @@
+{
+  "defaultAction": "SCMP_ACT_ERRNO",
+  "archMap": [
+    {
+      "architecture": "SCMP_ARCH_X86_64",
+      "subArchitectures": [
+        "SCMP_ARCH_X86",
+        "SCMP_ARCH_X32"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_AARCH64",
+      "subArchitectures": [
+        "SCMP_ARCH_ARM"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_MIPS64",
+      "subArchitectures": [
+        "SCMP_ARCH_MIPS",
+        "SCMP_ARCH_MIPS64N32"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_MIPS64N32",
+      "subArchitectures": [
+        "SCMP_ARCH_MIPS",
+        "SCMP_ARCH_MIPS64"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_MIPSEL64",
+      "subArchitectures": [
+        "SCMP_ARCH_MIPSEL",
+        "SCMP_ARCH_MIPSEL64N32"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_MIPSEL64N32",
+      "subArchitectures": [
+        "SCMP_ARCH_MIPSEL",
+        "SCMP_ARCH_MIPSEL64"
+      ]
+    },
+    {
+      "architecture": "SCMP_ARCH_S390X",
+      "subArchitectures": [
+        "SCMP_ARCH_S390"
+      ]
+    }
+  ],
+  "syscalls": [
+    {
+      "names": [
+        "accept",
+        "accept4",
+        "access",
+        "adjtimex",
+        "alarm",
+        "bind",
+        "brk",
+        "capget",
+        "capset",
+        "chdir",
+        "chmod",
+        "chown",
+        "chown32",
+        "clock_getres",
+        "clock_gettime",
+        "clock_nanosleep",
+        "clone",
+        "close",
+        "connect",
+        "copy_file_range",
+        "creat",
+        "dup",
+        "dup2",
+        "dup3",
+        "epoll_create",
+        "epoll_create1",
+        "epoll_ctl",
+        "epoll_ctl_old",
+        "epoll_pwait",
+        "epoll_wait",
+        "epoll_wait_old",
+        "eventfd",
+        "eventfd2",
+        "execve",
+        "execveat",
+        "exit",
+        "exit_group",
+        "faccessat",
+        "fadvise64",
+        "fadvise64_64",
+        "fallocate",
+        "fanotify_mark",
+        "fchdir",
+        "fchmod",
+        "fchmodat",
+        "fchown",
+        "fchown32",
+        "fchownat",
+        "fcntl",
+        "fcntl64",
+        "fdatasync",
+        "fgetxattr",
+        "flistxattr",
+        "flock",
+        "fork",
+        "fremovexattr",
+        "fsetxattr",
+        "fstat",
+        "fstat64",
+        "fstatat64",
+        "fstatfs",
+        "fstatfs64",
+        "fsync",
+        "ftruncate",
+        "ftruncate64",
+        "futex",
+        "futimesat",
+        "getcpu",
+        "getcwd",
+        "getdents",
+        "getdents64",
+        "getegid",
+        "getegid32",
+        "geteuid",
+        "geteuid32",
+        "getgid",
+        "getgid32",
+        "getgroups",
+        "getgroups32",
+        "getitimer",
+        "getpeername",
+        "getpgid",
+        "getpgrp",
+        "getpid",
+        "getppid",
+        "getpriority",
+        "getrandom",
+        "getresgid",
+        "getresgid32",
+        "getresuid",
+        "getresuid32",
+        "getrlimit",
+        "get_robust_list",
+        "getrusage",
+        "getsid",
+        "getsockname",
+        "getsockopt",
+        "get_thread_area",
+        "gettid",
+        "gettimeofday",
+        "getuid",
+        "getuid32",
+        "getxattr",
+        "inotify_add_watch",
+        "inotify_init",
+        "inotify_init1",
+        "inotify_rm_watch",
+        "io_cancel",
+        "ioctl",
+        "io_destroy",
+        "io_getevents",
+        "io_pgetevents",
+        "ioprio_get",
+        "ioprio_set",
+        "io_setup",
+        "io_submit",
+        "io_uring_enter",
+        "io_uring_register",
+        "io_uring_setup",
+        "ipc",
+        "kill",
+        "lchown",
+        "lchown32",
+        "lgetxattr",
+        "link",
+        "linkat",
+        "listen",
+        "listxattr",
+        "llistxattr",
+        "_llseek",
+        "lremovexattr",
+        "lseek",
+        "lsetxattr",
+        "lstat",
+        "lstat64",
+        "madvise",
+        "memfd_create",
+        "mincore",
+        "mkdir",
+        "mkdirat",
+        "mknod",
+        "mknodat",
+        "mlock",
+        "mlock2",
+        "mlockall",
+        "mmap",
+        "mmap2",
+        "mprotect",
+        "mq_getsetattr",
+        "mq_notify",
+        "mq_open",
+        "mq_timedreceive",
+        "mq_timedsend",
+        "mq_unlink",
+        "mremap",
+        "msgctl",
+        "msgget",
+        "msgrcv",
+        "msgsnd",
+        "msync",
+        "munlock",
+        "munlockall",
+        "munmap",
+        "nanosleep",
+        "newfstatat",
+        "_newselect",
+        "open",
+        "openat",
+        "pause",
+        "pipe",
+        "pipe2",
+        "poll",
+        "ppoll",
+        "prctl",
+        "pread64",
+        "preadv",
+        "preadv2",
+        "prlimit64",
+        "pselect6",
+        "pwrite64",
+        "pwritev",
+        "pwritev2",
+        "read",
+        "readahead",
+        "readlink",
+        "readlinkat",
+        "readv",
+        "recv",
+        "recvfrom",
+        "recvmmsg",
+        "recvmsg",
+        "remap_file_pages",
+        "removexattr",
+        "rename",
+        "renameat",
+        "renameat2",
+        "restart_syscall",
+        "rmdir",
+        "rt_sigaction",
+        "rt_sigpending",
+        "rt_sigprocmask",
+        "rt_sigqueueinfo",
+        "rt_sigreturn",
+        "rt_sigsuspend",
+        "rt_sigtimedwait",
+        "rt_tgsigqueueinfo",
+        "sched_getaffinity",
+        "sched_getattr",
+        "sched_getparam",
+        "sched_get_priority_max",
+        "sched_get_priority_min",
+        "sched_getscheduler",
+        "sched_rr_get_interval",
+        "sched_setaffinity",
+        "sched_setattr",
+        "sched_setparam",
+        "sched_setscheduler",
+        "sched_yield",
+        "seccomp",
+        "select",
+        "semctl",
+        "semget",
+        "semop",
+        "semtimedop",
+        "send",
+        "sendfile",
+        "sendfile64",
+        "sendmmsg",
+        "sendmsg",
+        "sendto",
+        "setfsgid",
+        "setfsgid32",
+        "setfsuid",
+        "setfsuid32",
+        "setgid",
+        "setgid32",
+        "setgroups",
+        "setgroups32",
+        "setitimer",
+        "setpgid",
+        "setpriority",
+        "setregid",
+        "setregid32",
+        "setresgid",
+        "setresgid32",
+        "setresuid",
+        "setresuid32",
+        "setreuid",
+        "setreuid32",
+        "setrlimit",
+        "set_robust_list",
+        "setsid",
+        "setsockopt",
+        "set_thread_area",
+        "set_tid_address",
+        "setuid",
+        "setuid32",
+        "setxattr",
+        "shmat",
+        "shmctl",
+        "shmdt",
+        "shmget",
+        "shutdown",
+        "sigaltstack",
+        "signalfd",
+        "signalfd4",
+        "sigprocmask",
+        "sigreturn",
+        "socket",
+        "socketcall",
+        "socketpair",
+        "splice",
+        "stat",
+        "stat64",
+        "statfs",
+        "statfs64",
+        "statx",
+        "symlink",
+        "symlinkat",
+        "sync",
+        "sync_file_range",
+        "syncfs",
+        "sysinfo",
+        "tee",
+        "tgkill",
+        "time",
+        "timer_create",
+        "timer_delete",
+        "timerfd_create",
+        "timerfd_gettime",
+        "timerfd_settime",
+        "timer_getoverrun",
+        "timer_gettime",
+        "timer_settime",
+        "times",
+        "tkill",
+        "truncate",
+        "truncate64",
+        "ugetrlimit",
+        "umask",
+        "uname",
+        "unlink",
+        "unlinkat",
+        "unshare",
+        "utime",
+        "utimensat",
+        "utimes",
+        "vfork",
+        "vmsplice",
+        "wait4",
+        "waitid",
+        "waitpid",
+        "write",
+        "writev"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "ptrace"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": null,
+      "comment": "",
+      "includes": {
+        "minKernel": "4.8"
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "personality"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 0,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "personality"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 8,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "personality"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 131072,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "personality"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 131080,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "personality"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 4294967295,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": null
+    },
+    {
+      "names": [
+        "sync_file_range2"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "arches": [
+          "ppc64le"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "arm_fadvise64_64",
+        "arm_sync_file_range",
+        "sync_file_range2",
+        "breakpoint",
+        "cacheflush",
+        "set_tls"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "arches": [
+          "arm",
+          "arm64"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "arch_prctl"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "arches": [
+          "amd64",
+          "x32"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "modify_ldt"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "arches": [
+          "amd64",
+          "x32",
+          "x86"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "s390_pci_mmio_read",
+        "s390_pci_mmio_write",
+        "s390_runtime_instr"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "arches": [
+          "s390",
+          "s390x"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "open_by_handle_at"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_DAC_READ_SEARCH"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "bpf",
+        "fanotify_init",
+        "lookup_dcookie",
+        "mount",
+        "name_to_handle_at",
+        "perf_event_open",
+        "quotactl",
+        "setdomainname",
+        "sethostname",
+        "setns",
+        "syslog",
+        "umount",
+        "umount2"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_ADMIN"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "clone"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 0,
+          "value": 2114060288,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_MASKED_EQ"
+        }
+      ],
+      "comment": "",
+      "includes": null,
+      "excludes": {
+        "caps": [
+          "CAP_SYS_ADMIN"
+        ],
+        "arches": [
+          "s390",
+          "s390x"
+        ]
+      }
+    },
+    {
+      "names": [
+        "clone"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [
+        {
+          "index": 1,
+          "value": 2114060288,
+          "valueTwo": 0,
+          "op": "SCMP_CMP_MASKED_EQ"
+        }
+      ],
+      "comment": "s390 parameter ordering for clone is different",
+      "includes": {
+        "arches": [
+          "s390",
+          "s390x"
+        ]
+      },
+      "excludes": {
+        "caps": [
+          "CAP_SYS_ADMIN"
+        ]
+      }
+    },
+    {
+      "names": [
+        "reboot"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_BOOT"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "chroot"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_CHROOT"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "delete_module",
+        "init_module",
+        "finit_module",
+        "query_module"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_MODULE"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "acct"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_PACCT"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "kcmp",
+        "process_vm_readv",
+        "process_vm_writev",
+        "ptrace"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_PTRACE"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "iopl",
+        "ioperm"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_RAWIO"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "settimeofday",
+        "stime",
+        "clock_settime"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_TIME"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "vhangup"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_TTY_CONFIG"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "get_mempolicy",
+        "mbind",
+        "set_mempolicy"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYS_NICE"
+        ]
+      },
+      "excludes": null
+    },
+    {
+      "names": [
+        "syslog"
+      ],
+      "action": "SCMP_ACT_ALLOW",
+      "args": [],
+      "comment": "",
+      "includes": {
+        "caps": [
+          "CAP_SYSLOG"
+        ]
+      },
+      "excludes": null
+    }
+  ]
+}
diff --git a/tests/wpt/web-platform-tests/tools/lint/lint.py b/tests/wpt/web-platform-tests/tools/lint/lint.py
index 7689c359928..c7c0197213c 100644
--- a/tests/wpt/web-platform-tests/tools/lint/lint.py
+++ b/tests/wpt/web-platform-tests/tools/lint/lint.py
@@ -844,6 +844,7 @@ def create_parser():
                         help="Output markdown")
     parser.add_argument("--repo-root", help="The WPT directory. Use this"
                         "option if the lint script exists outside the repository")
+    parser.add_argument("--ignore-glob", help="Additional file glob to ignore.")
     parser.add_argument("--all", action="store_true", help="If no paths are passed, try to lint the whole "
                         "working directory, not just files that changed")
     return parser
@@ -867,17 +868,22 @@ def main(**kwargs):
 
     paths = lint_paths(kwargs, repo_root)
 
-    return lint(repo_root, paths, output_format)
+    ignore_glob = kwargs.get(str("ignore_glob")) or str()
+
+    return lint(repo_root, paths, output_format, str(ignore_glob))
 
 
-def lint(repo_root, paths, output_format):
-    # type: (str, List[str], str) -> int
+def lint(repo_root, paths, output_format, ignore_glob=str()):
+    # type: (str, List[str], str, str) -> int
     error_count = defaultdict(int)  # type: Dict[Text, int]
     last = None
 
     with open(os.path.join(repo_root, "lint.whitelist")) as f:
         whitelist, ignored_files = parse_whitelist(f)
 
+    if ignore_glob:
+        ignored_files.add(ignore_glob)
+
     output_errors = {"json": output_errors_json,
                      "markdown": output_errors_markdown,
                      "normal": output_errors_text}[output_format]
diff --git a/tests/wpt/web-platform-tests/tools/lint/tests/test_lint.py b/tests/wpt/web-platform-tests/tools/lint/tests/test_lint.py
index dbd4708cdc9..af2b7d3d4aa 100644
--- a/tests/wpt/web-platform-tests/tools/lint/tests/test_lint.py
+++ b/tests/wpt/web-platform-tests/tools/lint/tests/test_lint.py
@@ -398,6 +398,29 @@ def test_check_css_globally_unique_ignored_dir(caplog):
     assert caplog.text == ""
 
 
+def test_ignore_glob(caplog):
+    # Lint two files in the ref/ directory, and pass in ignore_glob to omit one
+    # of them.
+    # When we omit absolute.html, no lint errors appear since the other file is
+    # clean.
+    with _mock_lint("check_path") as mocked_check_path:
+        with _mock_lint("check_file_contents") as mocked_check_file_contents:
+            rv = lint(_dummy_repo, ["ref/absolute.html", "ref/existent_relative.html"], "normal", "*solu*")
+            assert rv == 0
+            # Also confirm that only one file is checked
+            assert mocked_check_path.call_count == 1
+            assert mocked_check_file_contents.call_count == 1
+            assert caplog.text == ""
+    # However, linting the same two files without ignore_glob yields lint errors.
+    with _mock_lint("check_path") as mocked_check_path:
+        with _mock_lint("check_file_contents") as mocked_check_file_contents:
+            rv = lint(_dummy_repo, ["ref/absolute.html", "ref/existent_relative.html"], "normal")
+            assert rv == 1
+            assert mocked_check_path.call_count == 2
+            assert mocked_check_file_contents.call_count == 2
+            assert "ABSOLUTE-URL-REF" in caplog.text
+
+
 def test_all_filesystem_paths():
     with mock.patch(
             'tools.lint.lint.walk',
@@ -443,7 +466,8 @@ def test_main_with_args():
                 m.assert_called_once_with(repo_root,
                                           [os.path.relpath(os.path.join(os.getcwd(), x), repo_root)
                                            for x in ['a', 'b', 'c']],
-                                          "normal")
+                                          "normal",
+                                          str())
     finally:
         sys.argv = orig_argv
 
@@ -455,7 +479,7 @@ def test_main_no_args():
         with _mock_lint('lint', return_value=True) as m:
             with _mock_lint('changed_files', return_value=['foo', 'bar']):
                 lint_mod.main(**vars(create_parser().parse_args()))
-                m.assert_called_once_with(repo_root, ['foo', 'bar'], "normal")
+                m.assert_called_once_with(repo_root, ['foo', 'bar'], "normal", str())
     finally:
         sys.argv = orig_argv
 
@@ -467,6 +491,6 @@ def test_main_all():
         with _mock_lint('lint', return_value=True) as m:
             with _mock_lint('all_filesystem_paths', return_value=['foo', 'bar']):
                 lint_mod.main(**vars(create_parser().parse_args()))
-                m.assert_called_once_with(repo_root, ['foo', 'bar'], "normal")
+                m.assert_called_once_with(repo_root, ['foo', 'bar'], "normal", str())
     finally:
         sys.argv = orig_argv
diff --git a/tests/wpt/web-platform-tests/tools/taskcluster/commands.json b/tests/wpt/web-platform-tests/tools/taskcluster/commands.json
deleted file mode 100644
index dcbd8961fc2..00000000000
--- a/tests/wpt/web-platform-tests/tools/taskcluster/commands.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-    "tc-verify": {"path": "verify.py", "script": "run", "parser": "create_parser", "help": "Verify .taskcluster.yml file is parsable",
-                  "virtualenv": true, "install": ["json-e", "pyyaml"]}
-}
diff --git a/tests/wpt/web-platform-tests/tools/taskcluster/verify.py b/tests/wpt/web-platform-tests/tools/taskcluster/verify.py
deleted file mode 100644
index b37e45ec74c..00000000000
--- a/tests/wpt/web-platform-tests/tools/taskcluster/verify.py
+++ /dev/null
@@ -1,37 +0,0 @@
-import argparse
-import json
-import os
-
-import jsone
-import yaml
-
-here = os.path.dirname(__file__)
-root = os.path.abspath(os.path.join(here, "..", ".."))
-
-
-def create_parser():
-    return argparse.ArgumentParser()
-
-
-def run(venv, **kwargs):
-    with open(os.path.join(root, ".taskcluster.yml")) as f:
-        template = yaml.safe_load(f)
-
-    events = [("pr_event.json", "github-pull-request", "Pull Request"),
-              ("master_push_event.json", "github-push", "Push to master")]
-
-    for filename, tasks_for, title in events:
-        with open(os.path.join(here, "testdata", filename)) as f:
-            event = json.load(f)
-
-        context = {"tasks_for": tasks_for,
-                   "event": event,
-                   "as_slugid": lambda x: x}
-
-        data = jsone.render(template, context)
-        heading = "Got %s tasks for %s" % (len(data["tasks"]), title)
-        print(heading)
-        print("=" * len(heading))
-        for item in data["tasks"]:
-            print(json.dumps(item, indent=2))
-        print("")
diff --git a/tests/wpt/web-platform-tests/tools/tox.ini b/tests/wpt/web-platform-tests/tools/tox.ini
index 7a5c1eb648a..e8673db0a69 100644
--- a/tests/wpt/web-platform-tests/tools/tox.ini
+++ b/tests/wpt/web-platform-tests/tools/tox.ini
@@ -8,8 +8,11 @@ deps =
   pytest-cov
   mock
   hypothesis
-  # `requests` is required by `pr_preview.py`
   requests
+  taskcluster
+  pyyaml
+  json-e
+  jsonschema
 
 commands = pytest {posargs}
 
diff --git a/tests/wpt/web-platform-tests/tools/wpt/browser.py b/tests/wpt/web-platform-tests/tools/wpt/browser.py
index e7d57d8638c..a94d5509cc8 100644
--- a/tests/wpt/web-platform-tests/tools/wpt/browser.py
+++ b/tests/wpt/web-platform-tests/tools/wpt/browser.py
@@ -47,6 +47,11 @@ class Browser(object):
     def __init__(self, logger):
         self.logger = logger
 
+    @abstractmethod
+    def download(self, dest=None, channel=None):
+        """Download a package or installer for the browser"""
+        return NotImplemented
+
     @abstractmethod
     def install(self, dest=None):
         """Install the browser."""
@@ -116,11 +121,19 @@ class Firefox(Browser):
 
         return "%s%s" % (self.platform, bits)
 
-    def install(self, dest=None, channel="nightly"):
-        """Install Firefox."""
+    def _get_dest(self, dest, channel):
+        if dest is None:
+            # os.getcwd() doesn't include the venv path
+            dest = os.path.join(os.getcwd(), "_venv")
 
-        import mozinstall
+        dest = os.path.join(dest, "browsers", channel)
 
+        if not os.path.exists(dest):
+            os.makedirs(dest)
+
+        return dest
+
+    def download(self, dest=None, channel="nightly"):
         product = {
             "nightly": "firefox-nightly-latest-ssl",
             "beta": "firefox-beta-latest-ssl",
@@ -136,21 +149,15 @@ class Firefox(Browser):
         }
         os_key = (self.platform, uname[4])
 
+        if dest is None:
+            dest = self._get_dest(None, channel)
+
         if channel not in product:
             raise ValueError("Unrecognised release channel: %s" % channel)
 
         if os_key not in os_builds:
             raise ValueError("Unsupported platform: %s %s" % os_key)
 
-        if dest is None:
-            # os.getcwd() doesn't include the venv path
-            dest = os.path.join(os.getcwd(), "_venv")
-
-        dest = os.path.join(dest, "browsers", channel)
-
-        if not os.path.exists(dest):
-            os.makedirs(dest)
-
         url = "https://download.mozilla.org/?product=%s&os=%s&lang=en-US" % (product[channel],
                                                                              os_builds[os_key])
         self.logger.info("Downloading Firefox from %s" % url)
@@ -175,6 +182,18 @@ class Firefox(Browser):
         with open(installer_path, "wb") as f:
             f.write(resp.content)
 
+        return installer_path
+
+    def install(self, dest=None, channel="nightly"):
+        """Install Firefox."""
+        import mozinstall
+
+        dest = self._get_dest(dest, channel)
+
+        filename = os.path.basename(dest)
+
+        installer_path = self.download(dest, channel)
+
         try:
             mozinstall.install(installer_path, dest)
         except mozinstall.mozinstall.InstallError:
@@ -422,7 +441,7 @@ class FirefoxAndroid(Browser):
     product = "firefox_android"
     requirements = "requirements_firefox.txt"
 
-    def install(self, dest=None, channel=None):
+    def download(self, dest=None, channel=None):
         if dest is None:
             dest = os.pwd
 
@@ -452,6 +471,9 @@ class FirefoxAndroid(Browser):
 
         return apk_path
 
+    def install(self, dest=None, channel=None):
+        return self.download(dest, channel)
+
     def install_prefs(self, binary, dest=None, channel=None):
         fx_browser = Firefox(self.logger)
         return fx_browser.install_prefs(binary, dest, channel)
@@ -478,6 +500,9 @@ class Chrome(Browser):
     product = "chrome"
     requirements = "requirements_chrome.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -633,6 +658,9 @@ class ChromeAndroidBase(Browser):
         super(ChromeAndroidBase, self).__init__(logger)
         self.device_serial = None
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -724,6 +752,9 @@ class ChromeiOS(Browser):
     product = "chrome_ios"
     requirements = "requirements_chrome_ios.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -757,6 +788,9 @@ class Opera(Browser):
         self.logger.warning("Unable to find the browser binary.")
         return None
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -826,6 +860,9 @@ class EdgeChromium(Browser):
     edgedriver_name = "msedgedriver"
     requirements = "requirements_edge_chromium.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -922,6 +959,9 @@ class Edge(Browser):
     product = "edge"
     requirements = "requirements_edge.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -953,6 +993,9 @@ class InternetExplorer(Browser):
     product = "ie"
     requirements = "requirements_ie.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -978,6 +1021,9 @@ class Safari(Browser):
     product = "safari"
     requirements = "requirements_safari.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -1037,17 +1083,33 @@ class Servo(Browser):
 
         return (platform, extension, decompress)
 
-    def install(self, dest=None, channel="nightly"):
-        """Install latest Browser Engine."""
+    def _get(self, channel="nightly"):
         if channel != "nightly":
             raise ValueError("Only nightly versions of Servo are available")
+
+        platform, extension, _ = self.platform_components()
+        url = "https://download.servo.org/nightly/%s/servo-latest%s" % (platform, extension)
+        return get(url)
+
+    def download(self, dest=None, channel="nightly"):
         if dest is None:
             dest = os.pwd
 
-        platform, extension, decompress = self.platform_components()
-        url = "https://download.servo.org/nightly/%s/servo-latest%s" % (platform, extension)
+        resp = self._get(dest, channel)
+        _, extension, _ = self.platform_components()
 
-        decompress(get(url).raw, dest=dest)
+        with open(os.path.join(dest, "servo-latest%s" % (extension,)), "w") as f:
+            f.write(resp.content)
+
+    def install(self, dest=None, channel="nightly"):
+        """Install latest Browser Engine."""
+        if dest is None:
+            dest = os.pwd
+
+        _, _, decompress = self.platform_components()
+
+        resp = self._get(dest, channel)
+        decompress(resp.raw, dest=dest)
         path = find_executable("servo", os.path.join(dest, "servo"))
         st = os.stat(path)
         os.chmod(path, st.st_mode | stat.S_IEXEC)
@@ -1083,6 +1145,9 @@ class Sauce(Browser):
     product = "sauce"
     requirements = "requirements_sauce.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -1105,6 +1170,9 @@ class WebKit(Browser):
     product = "webkit"
     requirements = "requirements_webkit.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
@@ -1168,6 +1236,9 @@ class Epiphany(Browser):
     product = "epiphany"
     requirements = "requirements_epiphany.txt"
 
+    def download(self, dest=None, channel=None):
+        raise NotImplementedError
+
     def install(self, dest=None, channel=None):
         raise NotImplementedError
 
diff --git a/tests/wpt/web-platform-tests/tools/wpt/install.py b/tests/wpt/web-platform-tests/tools/wpt/install.py
index 8215dfe0916..24915f0c98d 100644
--- a/tests/wpt/web-platform-tests/tools/wpt/install.py
+++ b/tests/wpt/web-platform-tests/tools/wpt/install.py
@@ -42,6 +42,8 @@ def get_parser():
                         'the latest available development release. For WebDriver installs, '
                         'we attempt to select an appropriate, compatible, version for the '
                         'latest browser release on the selected channel.')
+    parser.add_argument('--download-only', action="store_true",
+                        help="Download the selected component but don't install it")
     parser.add_argument('-d', '--destination',
                         help='filesystem directory to place the component')
     return parser
@@ -73,21 +75,22 @@ def run(venv, **kwargs):
             raise argparse.ArgumentError(None,
                                          "No --destination argument, and no default for the environment")
 
-    install(browser, kwargs["component"], destination, channel)
+    install(browser, kwargs["component"], destination, channel,
+            download_only=kwargs["download_only"])
 
 
-def install(name, component, destination, channel="nightly", logger=None):
+def install(name, component, destination, channel="nightly", logger=None, download_only=False):
     if logger is None:
         import logging
         logger = logging.getLogger("install")
 
-    if component == 'webdriver':
-        method = 'install_webdriver'
-    else:
-        method = 'install'
+    prefix = "download" if download_only else "install"
+    suffix = "_webdriver" if component == 'webdriver' else ""
+
+    method = prefix + suffix
 
     subclass = getattr(browser, name.title())
     sys.stdout.write('Now installing %s %s...\n' % (name, component))
     path = getattr(subclass(logger), method)(dest=destination, channel=channel)
     if path:
-        sys.stdout.write('Binary installed as %s\n' % (path,))
+        sys.stdout.write('Binary %s as %s\n' % ("downloaded" if download_only else "installed", path,))
diff --git a/tests/wpt/web-platform-tests/tools/wpt/paths b/tests/wpt/web-platform-tests/tools/wpt/paths
index 093a7156892..35867c4ccbf 100644
--- a/tests/wpt/web-platform-tests/tools/wpt/paths
+++ b/tests/wpt/web-platform-tests/tools/wpt/paths
@@ -3,5 +3,4 @@ tools/docker/
 tools/lint/
 tools/manifest/
 tools/serve/
-tools/taskcluster/
 tools/wpt/
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/docs/expectation.rst b/tests/wpt/web-platform-tests/tools/wptrunner/docs/expectation.rst
index 2f7467c0912..77938abe03d 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/docs/expectation.rst
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/docs/expectation.rst
@@ -287,7 +287,7 @@ A more complex manifest with conditional properties might be::
 
   [canvas_test.html]
     expected:
-      if os == "osx": FAIL
+      if os == "mac": FAIL
       if os == "windows" and version == "XP": FAIL
       PASS
 
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt b/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
index f49102b8a89..4cbb7a5ec02 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/requirements_firefox.txt
@@ -8,4 +8,4 @@ mozprocess==1.0.0
 mozprofile==2.4.0
 mozrunner==7.7.0
 mozversion==2.2.0
-psutil==5.6.5
+psutil==5.6.7
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
index f20f735528c..713d8500113 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/base.py
@@ -7,6 +7,7 @@ import os
 import threading
 import traceback
 import socket
+import sys
 from six.moves.urllib.parse import urljoin, urlsplit, urlunsplit
 from abc import ABCMeta, abstractmethod
 
@@ -15,10 +16,6 @@ from .protocol import Protocol, BaseProtocolPart
 
 here = os.path.split(__file__)[0]
 
-# Extra timeout to use after internal test timeout at which the harness
-# should force a timeout
-extra_timeout = 5  # seconds
-
 
 def executor_kwargs(test_type, server_config, cache_manager, run_info_data,
                     **kwargs):
@@ -130,6 +127,61 @@ class ExecutorException(Exception):
         self.message = message
 
 
+class TimedRunner(object):
+    def __init__(self, logger, func, protocol, url, timeout, extra_timeout):
+        self.func = func
+        self.result = None
+        self.protocol = protocol
+        self.url = url
+        self.timeout = timeout
+        self.extra_timeout = extra_timeout
+        self.result_flag = threading.Event()
+
+    def run(self):
+        if self.set_timeout() is Stop:
+            return Stop
+
+        if self.before_run() is Stop:
+            return Stop
+
+        executor = threading.Thread(target=self.run_func)
+        executor.start()
+
+        # Add twice the timeout multiplier since the called function is expected to
+        # wait at least self.timeout + self.extra_timeout and this gives some leeway
+        finished = self.result_flag.wait(self.timeout + 2 * self.extra_timeout)
+        if self.result is None:
+            if finished:
+                # flag is True unless we timeout; this *shouldn't* happen, but
+                # it can if self.run_func fails to set self.result due to raising
+                self.result = False, ("INTERNAL-ERROR", "%s.run_func didn't set a result" %
+                                      self.__class__.__name__)
+            else:
+                message = "Executor hit external timeout (this may indicate a hang)\n"
+                # get a traceback for the current stack of the executor thread
+                message += "".join(traceback.format_stack(sys._current_frames()[executor.ident]))
+                self.result = False, ("EXTERNAL-TIMEOUT", message)
+        elif self.result[1] is None:
+            # We didn't get any data back from the test, so check if the
+            # browser is still responsive
+            if self.protocol.is_alive:
+                self.result = False, ("INTERNAL-ERROR", None)
+            else:
+                self.logger.info("Browser not responding, setting status to CRASH")
+                self.result = False, ("CRASH", None)
+
+        return self.result
+
+    def set_timeout(self):
+        raise NotImplementedError
+
+    def before_run(self):
+        pass
+
+    def run_func(self):
+        raise NotImplementedError
+
+
 class TestExecutor(object):
     """Abstract Base class for object that actually executes the tests in a
     specific browser. Typically there will be a different TestExecutor
@@ -148,6 +200,10 @@ class TestExecutor(object):
     convert_result = None
     supports_testdriver = False
     supports_jsshell = False
+    # Extra timeout to use after internal test timeout at which the harness
+    # should force a timeout
+    extra_timeout = 5  # seconds
+
 
     def __init__(self, browser, server_config, timeout_multiplier=1,
                  debug_info=None, **kwargs):
@@ -441,7 +497,7 @@ class WdspecExecutor(TestExecutor):
         pass
 
     def do_test(self, test):
-        timeout = test.timeout * self.timeout_multiplier + extra_timeout
+        timeout = test.timeout * self.timeout_multiplier + self.extra_timeout
 
         success, data = WdspecRun(self.do_wdspec,
                                   self.protocol.session_config,
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
index 7a936592f88..b165e8cd93d 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executormarionette.py
@@ -16,9 +16,9 @@ from .base import (CallbackHandler,
                    RefTestExecutor,
                    RefTestImplementation,
                    TestharnessExecutor,
+                   TimedRunner,
                    WdspecExecutor,
                    WebDriverProtocol,
-                   extra_timeout,
                    strip_server)
 from .protocol import (ActionSequenceProtocolPart,
                        AssertsProtocolPart,
@@ -566,27 +566,14 @@ class MarionetteProtocol(Protocol):
             self.prefs.set(name, value)
 
 
-class ExecuteAsyncScriptRun(object):
-    def __init__(self, logger, func, protocol, url, timeout):
-        self.logger = logger
-        self.result = (None, None)
-        self.protocol = protocol
-        self.func = func
-        self.url = url
-        self.timeout = timeout
-        self.result_flag = threading.Event()
-
-    def run(self):
-        index = self.url.rfind("/storage/")
-        if index != -1:
-            # Clear storage
-            self.protocol.storage.clear_origin(self.url)
+class ExecuteAsyncScriptRun(TimedRunner):
 
+    def set_timeout(self):
         timeout = self.timeout
 
         try:
             if timeout is not None:
-                self.protocol.base.set_timeout(timeout + extra_timeout)
+                self.protocol.base.set_timeout(timeout + self.extra_timeout)
             else:
                 # We just want it to never time out, really, but marionette doesn't
                 # make that possible. It also seems to time out immediately if the
@@ -596,33 +583,13 @@ class ExecuteAsyncScriptRun(object):
             self.logger.error("Lost marionette connection before starting test")
             return Stop
 
-        if timeout is not None:
-            wait_timeout = timeout + 2 * extra_timeout
-        else:
-            wait_timeout = None
+    def before_run(self):
+        index = self.url.rfind("/storage/")
+        if index != -1:
+            # Clear storage
+            self.protocol.storage.clear_origin(self.url)
 
-        timer = threading.Timer(wait_timeout, self._timeout)
-        timer.start()
-
-        self._run()
-
-        self.result_flag.wait()
-        timer.cancel()
-
-        if self.result == (None, None):
-            self.logger.debug("Timed out waiting for a result")
-            self.result = False, ("EXTERNAL-TIMEOUT", None)
-        elif self.result[1] is None:
-            # We didn't get any data back from the test, so check if the
-            # browser is still responsive
-            if self.protocol.is_alive:
-                self.result = False, ("INTERNAL-ERROR", None)
-            else:
-                self.logger.info("Browser not responding, setting status to CRASH")
-                self.result = False, ("CRASH", None)
-        return self.result
-
-    def _run(self):
+    def run_func(self):
         try:
             self.result = True, self.func(self.protocol, self.url, self.timeout)
         except errors.ScriptTimeoutException:
@@ -650,10 +617,6 @@ class ExecuteAsyncScriptRun(object):
         finally:
             self.result_flag.set()
 
-    def _timeout(self):
-        self.result = False, ("EXTERNAL-TIMEOUT", None)
-        self.result_flag.set()
-
 
 class MarionetteTestharnessExecutor(TestharnessExecutor):
     supports_testdriver = True
@@ -703,7 +666,8 @@ class MarionetteTestharnessExecutor(TestharnessExecutor):
                                               self.do_testharness,
                                               self.protocol,
                                               self.test_url(test),
-                                              timeout).run()
+                                              timeout,
+                                              self.extra_timeout).run()
         # The format of data depends on whether the test ran to completion or not
         # For asserts we only care about the fact that if it didn't complete, the
         # status is in the first field.
@@ -782,7 +746,7 @@ class MarionetteRefTestExecutor(RefTestExecutor):
 
         with open(os.path.join(here, "reftest.js")) as f:
             self.script = f.read()
-        with open(os.path.join(here, "reftest-wait_marionette.js")) as f:
+        with open(os.path.join(here, "reftest-wait_webdriver.js")) as f:
             self.wait_script = f.read()
 
     def setup(self, runner):
@@ -853,7 +817,8 @@ class MarionetteRefTestExecutor(RefTestExecutor):
                                      self._screenshot,
                                      self.protocol,
                                      test_url,
-                                     timeout).run()
+                                     timeout,
+                                     self.extra_timeout).run()
 
     def _screenshot(self, protocol, url, timeout):
         protocol.marionette.navigate(url)
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
index 913a5e6d542..d6745018279 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorselenium.py
@@ -11,7 +11,7 @@ from .base import (CallbackHandler,
                    RefTestExecutor,
                    RefTestImplementation,
                    TestharnessExecutor,
-                   extra_timeout,
+                   TimedRunner,
                    strip_server)
 from .protocol import (BaseProtocolPart,
                        TestharnessProtocolPart,
@@ -237,39 +237,17 @@ class SeleniumProtocol(Protocol):
         self.testharness.load_runner(self.executor.last_environment["protocol"])
 
 
-class SeleniumRun(object):
-    def __init__(self, func, protocol, url, timeout):
-        self.func = func
-        self.result = None
-        self.protocol = protocol
-        self.url = url
-        self.timeout = timeout
-        self.result_flag = threading.Event()
-
-    def run(self):
+class SeleniumRun(TimedRunner):
+    def set_timeout(self):
         timeout = self.timeout
 
         try:
-            self.protocol.base.set_timeout(timeout + extra_timeout)
+            self.protocol.base.set_timeout(timeout + self.extra_timeout)
         except exceptions.ErrorInResponseException:
             self.logger.error("Lost WebDriver connection")
             return Stop
 
-        executor = threading.Thread(target=self._run)
-        executor.start()
-
-        flag = self.result_flag.wait(timeout + 2 * extra_timeout)
-        if self.result is None:
-            if flag:
-                # flag is True unless we timeout; this *shouldn't* happen, but
-                # it can if self._run fails to set self.result due to raising
-                self.result = False, ("INTERNAL-ERROR", "self._run didn't set a result")
-            else:
-                self.result = False, ("EXTERNAL-TIMEOUT", None)
-
-        return self.result
-
-    def _run(self):
+    def run_func(self):
         try:
             self.result = True, self.func(self.protocol, self.url, self.timeout)
         except exceptions.TimeoutException:
@@ -312,10 +290,12 @@ class SeleniumTestharnessExecutor(TestharnessExecutor):
     def do_test(self, test):
         url = self.test_url(test)
 
-        success, data = SeleniumRun(self.do_testharness,
+        success, data = SeleniumRun(self.logger,
+                                    self.do_testharness,
                                     self.protocol,
                                     url,
-                                    test.timeout * self.timeout_multiplier).run()
+                                    test.timeout * self.timeout_multiplier,
+                                    self.extra_timeout).run()
 
         if success:
             return self.convert_result(test, data)
@@ -387,10 +367,12 @@ class SeleniumRefTestExecutor(RefTestExecutor):
         assert viewport_size is None
         assert dpi is None
 
-        return SeleniumRun(self._screenshot,
+        return SeleniumRun(self.logger,
+                           self._screenshot,
                            self.protocol,
                            self.test_url(test),
-                           test.timeout).run()
+                           test.timeout,
+                           self.extra_timeout).run()
 
     def _screenshot(self, protocol, url, timeout):
         webdriver = protocol.webdriver
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
index eaea0981632..365a1a08653 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservo.py
@@ -24,7 +24,6 @@ from ..webdriver_server import ServoDriverServer
 pytestrunner = None
 webdriver = None
 
-extra_timeout = 5  # seconds
 
 def write_hosts_file(config):
     hosts_fd, hosts_path = tempfile.mkstemp()
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservodriver.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservodriver.py
index 67a433d9a58..bd377d0d595 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservodriver.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorservodriver.py
@@ -1,8 +1,6 @@
 import json
 import os
 import socket
-import threading
-import time
 import traceback
 
 from .base import (Protocol,
@@ -10,6 +8,7 @@ from .base import (Protocol,
                    RefTestExecutor,
                    RefTestImplementation,
                    TestharnessExecutor,
+                   TimedRunner,
                    strip_server)
 from ..testrunner import Stop
 from ..webdriver_server import wait_for_service
@@ -19,8 +18,6 @@ ServoCommandExtensions = None
 
 here = os.path.join(os.path.split(__file__)[0])
 
-extra_timeout = 5
-
 
 def do_delayed_imports():
     global webdriver
@@ -131,29 +128,13 @@ class ServoWebDriverProtocol(Protocol):
                 break
 
 
-class ServoWebDriverRun(object):
-    def __init__(self, func, session, url, timeout, current_timeout=None):
-        self.func = func
-        self.result = None
-        self.session = session
-        self.url = url
-        self.timeout = timeout
-        self.result_flag = threading.Event()
+class ServoWebDriverRun(TimedRunner):
+    def set_timeout(self):
+        pass
 
-    def run(self):
-        executor = threading.Thread(target=self._run)
-        executor.start()
-
-        flag = self.result_flag.wait(self.timeout + extra_timeout)
-        if self.result is None:
-            assert not flag
-            self.result = False, ("EXTERNAL-TIMEOUT", None)
-
-        return self.result
-
-    def _run(self):
+    def run_func(self):
         try:
-            self.result = True, self.func(self.session, self.url, self.timeout)
+            self.result = True, self.func(self.protocol.session, self.url, self.timeout)
         except webdriver.TimeoutException:
             self.result = False, ("EXTERNAL-TIMEOUT", None)
         except (socket.timeout, IOError):
@@ -168,14 +149,6 @@ class ServoWebDriverRun(object):
             self.result_flag.set()
 
 
-def timeout_func(timeout):
-    if timeout:
-        t0 = time.time()
-        return lambda: time.time() - t0 > timeout + extra_timeout
-    else:
-        return lambda: False
-
-
 class ServoWebDriverTestharnessExecutor(TestharnessExecutor):
     supports_testdriver = True
 
@@ -198,7 +171,7 @@ class ServoWebDriverTestharnessExecutor(TestharnessExecutor):
     def do_test(self, test):
         url = self.test_url(test)
 
-        timeout = test.timeout * self.timeout_multiplier + extra_timeout
+        timeout = test.timeout * self.timeout_multiplier + self.extra_timeout
 
         if timeout != self.timeout:
             try:
@@ -208,10 +181,12 @@ class ServoWebDriverTestharnessExecutor(TestharnessExecutor):
                 self.logger.error("Lost webdriver connection")
                 return Stop
 
-        success, data = ServoWebDriverRun(self.do_testharness,
-                                          self.protocol.session,
+        success, data = ServoWebDriverRun(self.logger,
+                                          self.do_testharness,
+                                          self.protocol,
                                           url,
-                                          timeout).run()
+                                          timeout,
+                                          self.extra_timeout).run()
 
         if success:
             return self.convert_result(test, data)
@@ -286,7 +261,7 @@ class ServoWebDriverRefTestExecutor(RefTestExecutor):
         assert viewport_size is None
         assert dpi is None
 
-        timeout = (test.timeout * self.timeout_multiplier + extra_timeout
+        timeout = (test.timeout * self.timeout_multiplier + self.extra_timeout
                    if self.debug_info is None else None)
 
         if self.timeout != timeout:
@@ -297,10 +272,12 @@ class ServoWebDriverRefTestExecutor(RefTestExecutor):
                 self.logger.error("Lost webdriver connection")
                 return Stop
 
-        return ServoWebDriverRun(self._screenshot,
+        return ServoWebDriverRun(self.logger,
+                                 self._screenshot,
                                  self.protocol.session,
                                  self.test_url(test),
-                                 timeout).run()
+                                 timeout,
+                                 self.extra_timeout).run()
 
     def _screenshot(self, session, url, timeout):
         session.url = url
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
index 344debf8aa6..39346e805d7 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/executorwebdriver.py
@@ -1,7 +1,6 @@
 import json
 import os
 import socket
-import sys
 import threading
 import time
 import traceback
@@ -12,7 +11,7 @@ from .base import (CallbackHandler,
                    RefTestExecutor,
                    RefTestImplementation,
                    TestharnessExecutor,
-                   extra_timeout,
+                   TimedRunner,
                    strip_server)
 from .protocol import (BaseProtocolPart,
                        TestharnessProtocolPart,
@@ -256,7 +255,6 @@ class WebDriverProtocol(Protocol):
         self.webdriver = client.Session(host, port, capabilities=capabilities)
         self.webdriver.start()
 
-
     def teardown(self):
         self.logger.debug("Hanging up on WebDriver session")
         try:
@@ -281,42 +279,15 @@ class WebDriverProtocol(Protocol):
         self.testharness.load_runner(self.executor.last_environment["protocol"])
 
 
-class WebDriverRun(object):
-    def __init__(self, func, protocol, url, timeout):
-        self.func = func
-        self.result = None
-        self.protocol = protocol
-        self.url = url
-        self.timeout = timeout
-        self.result_flag = threading.Event()
-
-    def run(self):
-        timeout = self.timeout
-
+class WebDriverRun(TimedRunner):
+    def set_timeout(self):
         try:
-            self.protocol.base.set_timeout(timeout + extra_timeout)
+            self.protocol.base.set_timeout(self.timeout + self.extra_timeout)
         except client.UnknownErrorException:
             self.logger.error("Lost WebDriver connection")
             return Stop
 
-        executor = threading.Thread(target=self._run)
-        executor.start()
-
-        flag = self.result_flag.wait(timeout + 2 * extra_timeout)
-        if self.result is None:
-            if flag:
-                # flag is True unless we timeout; this *shouldn't* happen, but
-                # it can if self._run fails to set self.result due to raising
-                self.result = False, ("INTERNAL-ERROR", "self._run didn't set a result")
-            else:
-                message = "Waiting on browser:\n"
-                # get a traceback for the current stack of the executor thread
-                message += "".join(traceback.format_stack(sys._current_frames()[executor.ident]))
-                self.result = False, ("EXTERNAL-TIMEOUT", message)
-
-        return self.result
-
-    def _run(self):
+    def run_func(self):
         try:
             self.result = True, self.func(self.protocol, self.url, self.timeout)
         except (client.TimeoutException, client.ScriptTimeoutException):
@@ -366,10 +337,12 @@ class WebDriverTestharnessExecutor(TestharnessExecutor):
     def do_test(self, test):
         url = self.test_url(test)
 
-        success, data = WebDriverRun(self.do_testharness,
-                                    self.protocol,
-                                    url,
-                                    test.timeout * self.timeout_multiplier).run()
+        success, data = WebDriverRun(self.logger,
+                                     self.do_testharness,
+                                     self.protocol,
+                                     url,
+                                     test.timeout * self.timeout_multiplier,
+                                     self.extra_timeout).run()
 
         if success:
             return self.convert_result(test, data)
@@ -485,10 +458,12 @@ class WebDriverRefTestExecutor(RefTestExecutor):
         assert viewport_size is None
         assert dpi is None
 
-        return WebDriverRun(self._screenshot,
-                           self.protocol,
-                           self.test_url(test),
-                           test.timeout).run()
+        return WebDriverRun(self.logger,
+                            self._screenshot,
+                            self.protocol,
+                            self.test_url(test),
+                            test.timeout,
+                            self.extra_timeout).run()
 
     def _screenshot(self, protocol, url, timeout):
         webdriver = protocol.webdriver
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_marionette.js b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_marionette.js
deleted file mode 100644
index 194e192c2f4..00000000000
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_marionette.js
+++ /dev/null
@@ -1,19 +0,0 @@
-var callback = arguments[arguments.length - 1];
-
-function test(x) {
-  if (!root.classList.contains("reftest-wait")) {
-    observer.disconnect();
-    callback();
-  }
-}
-
-var root = document.documentElement;
-var observer = new MutationObserver(test);
-
-observer.observe(root, {attributes: true});
-
-if (document.readyState != "complete") {
-  addEventListener('load', test);
-} else {
-  test();
-}
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_webdriver.js b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_webdriver.js
index a7486b6594d..f86edacdef2 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_webdriver.js
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/executors/reftest-wait_webdriver.js
@@ -1,21 +1,20 @@
 var callback = arguments[arguments.length - 1];
+var observer = null;
+var root = document.documentElement;
 
-function root_wait() {
-  if (!root.classList.contains("reftest-wait")) {
-    observer.disconnect();
-
-    if (Document.prototype.hasOwnProperty("fonts")) {
-      document.fonts.ready.then(ready_for_screenshot);
-    } else {
-      // This might take the screenshot too early, depending on whether the
-      // load event is blocked on fonts being loaded. See:
-      // https://github.com/w3c/csswg-drafts/issues/1088
-      ready_for_screenshot();
-    }
+function wait_load() {
+  if (Document.prototype.hasOwnProperty("fonts")) {
+    document.fonts.ready.then(wait_paints);
+  } else {
+    // This might take the screenshot too early, depending on whether the
+    // load event is blocked on fonts being loaded. See:
+    // https://github.com/w3c/csswg-drafts/issues/1088
+    wait_paints();
   }
 }
 
-function ready_for_screenshot() {
+
+function wait_paints() {
   // As of 2017-04-05, the Chromium web browser exhibits a rendering bug
   // (https://bugs.chromium.org/p/chromium/issues/detail?id=708757) that
   // produces instability during screen capture. The following use of
@@ -27,18 +26,29 @@ function ready_for_screenshot() {
 
   requestAnimationFrame(function() {
     requestAnimationFrame(function() {
-      callback();
+      screenshot_if_ready();
     });
   });
 }
 
-var root = document.documentElement;
-var observer = new MutationObserver(root_wait);
+function screenshot_if_ready() {
+  if (root.classList.contains("reftest-wait") &&
+      observer === null) {
+    observer = new MutationObserver(wait_paints);
+    observer.observe(root, {attributes: true});
+    var event = new Event("TestRendered", {bubbles: true});
+    root.dispatchEvent(event);
+    return;
+  }
+  if (observer !== null) {
+    observer.disconnect();
+  }
+  callback();
+}
 
-observer.observe(root, {attributes: true});
 
 if (document.readyState != "complete") {
-    addEventListener('load', root_wait);
+  addEventListener('load', wait_load);
 } else {
-    root_wait();
+  wait_load();
 }
diff --git a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
index 1b02fc622be..8dece20a8e9 100644
--- a/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
+++ b/tests/wpt/web-platform-tests/tools/wptrunner/wptrunner/testrunner.py
@@ -334,6 +334,8 @@ class TestRunnerManager(threading.Thread):
         # This may not really be what we want
         self.daemon = True
 
+        self.timer = None
+
         self.max_restarts = 5
 
         self.browser = None
@@ -559,7 +561,22 @@ class TestRunnerManager(threading.Thread):
             self.logger.info("Run %d/%d" % (self.run_count, self.rerun))
             self.send_message("reset")
         self.run_count += 1
+        # Factor of 3 on the extra timeout here is based on allowing the executor
+        # at least test.timeout + 2 * extra_timeout to complete,
+        # which in turn is based on having several layers of timeout inside the executor
+        wait_timeout = (self.state.test.timeout * self.executor_kwargs['timeout_multiplier'] +
+                        3 * self.executor_cls.extra_timeout)
+        self.timer = threading.Timer(wait_timeout, self._timeout)
         self.send_message("run_test", self.state.test)
+        self.timer.start()
+
+    def _timeout(self):
+        self.logger.info("Got timeout in harness")
+        test = self.state.test
+        self.test_ended(test,
+                        (test.result_cls("EXTERNAL-TIMEOUT",
+                                         "TestRunner hit external timeout "
+                                         "(this may indicate a hang)"), []))
 
     def test_ended(self, test, results):
         """Handle the end of a test.
@@ -569,6 +586,7 @@ class TestRunnerManager(threading.Thread):
         """
         assert isinstance(self.state, RunnerManagerState.running)
         assert test == self.state.test
+        self.timer.cancel()
         # Write the result of each subtest
         file_result, test_results = results
         subtest_unexpected = False
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation-ref.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation-ref.html
new file mode 100644
index 00000000000..0aaa0443649
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<title>Reference for reverse running animation</title>
+<style>
+  #box {
+    background: blue;
+    height: 40px;
+    width: 40px;
+    transform: translateX(100px);
+    will-change: transform;
+  }
+</style>
+<body>
+  <div id="box"></div>
+  <p>This test reverses the animation shortly after the box starts moving. If
+     the box doesn't move back to its original position, the test has failed.
+  </p>
+</body>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation.html
new file mode 100644
index 00000000000..584aa0029ea
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/reverse-running-animation.html
@@ -0,0 +1,41 @@
+
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="UTF-8">
+<title>reverse running animation</title>
+<link rel="match" href="reverse-running-animation-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #box {
+    background: blue;
+    height: 40px;
+    width: 40px;
+  }
+</style>
+
+<body>
+  <div id="box"></div>
+   <p>This test reverses the animation shortly after the box starts moving. If
+      the box doesn't move back to its original position, the test has failed.
+   </p>
+</body>
+<script>
+  onload = function() {
+    const elem = document.getElementById('box');
+    const anim = elem.animate([
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(200px)' },
+        { transform: 'translateX(200px)' }
+      ], {
+        duration: 1000
+      });
+
+    anim.ready.then(() => {
+      setTimeout(() => {
+        anim.reverse();
+      }, 500);
+      takeScreenshotDelayed(900);
+    });
+  };
+</script>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times-ref.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times-ref.html
new file mode 100644
index 00000000000..fc843a132f2
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times-ref.html
@@ -0,0 +1,20 @@
+
+<!DOCTYPE html>
+<meta charset="UTF-8">
+<title>Reference for sync start times</title>
+<style>
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+
+<body>
+  <p id="notes">
+    This test creates a pair of animations, starts the first animation and then
+    syncs the second animation to align with the first. The test passes if the
+    box associated with the first animation is completely occluded by the
+    second.
+  </p>
+</body>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times.html
new file mode 100644
index 00000000000..06dcf030563
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/sync-start-times.html
@@ -0,0 +1,68 @@
+
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="UTF-8">
+<title>sync start times</title>
+<link rel="match" href="sync-start-times-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #box-1, #box-2 {
+    border: 1px solid white;
+    height: 40px;
+    left: 40px;
+    position: absolute;
+    top: 40px;
+    width: 40px;
+  }
+  #box-1 {
+    background: blue;
+    z-index: 1;
+  }
+  #box-2 {
+    background: white;
+    z-index: 2;
+  }
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+
+<body>
+  <div id="box-1"></div>
+  <div id="box-2"></div>
+  <p id="notes">
+    This test creates a pair of animations, starts the first animation and then
+    syncs the second animation to align with the first. The test passes if the
+    box associated with the first animation is completely occluded by the
+    second.
+  </p>
+</body>
+<script>
+  onload = function() {
+    function createAnimation(elementId) {
+      const elem = document.getElementById(elementId);
+      const keyframes = [
+        { transform: 'translateX(0px)' },
+        { transform: 'translateX(200px)' }
+      ];
+      const anim = elem.animate(keyframes, { duration: 1000 });
+      anim.pause();
+      return anim;
+    };
+
+    const anim1 = createAnimation('box-1');
+    const anim2 = createAnimation('box-2');
+
+    anim1.currentTime = 500;
+    anim1.play();
+
+    anim1.ready.then(() => {
+      anim2.startTime = anim1.startTime;
+      requestAnimationFrame(() => {
+        takeScreenshot();
+      });
+    });
+  };
+</script>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast-ref.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast-ref.html
new file mode 100644
index 00000000000..af69b26100a
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast-ref.html
@@ -0,0 +1,20 @@
+<!DOCTYPE html>
+<title>Reference for update playback rate zero</title>
+<style>
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+  body {
+    background: white;
+  }
+</style>
+<body>
+  <div id="box"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation finishes ahead of the screenshot.
+    If any blue pixels appear in the screenshot, the test fails.
+  </p>
+</body>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast.html
new file mode 100644
index 00000000000..63a76ba84a6
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-fast.html
@@ -0,0 +1,62 @@
+
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="UTF-8">
+<title>Update playback rate zero</title>
+<link rel="match" href="update-playback-rate-fast-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #box-1, #box-2 {
+    border: 1px solid white;
+    height: 40px;
+    left: 40px;
+    position: absolute;
+    top: 40px;
+    width: 40px;
+  }
+  #box-1 {
+    background: blue;
+    z-index: 1;
+  }
+  #box-2 {
+    background: white;
+    transform: translateX(0px);
+    z-index: 2;
+  }
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+  body {
+    background: white;
+  }
+</style>
+
+<body>
+  <div id="box-1"></div>
+  <div id="box-2"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation finishes ahead of the screenshot.
+    If any blue pixels appear in the screenshot, the test fails.
+  </p>
+</body>
+<script>
+  onload = function() {
+    const elem = document.getElementById('box-1');
+    const anim = elem.animate([
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(200px)' },
+        { transform: 'translateX(200px)' }
+      ], {
+        duration: 1000
+      });
+
+    anim.ready.then(() => {
+      anim.updatePlaybackRate(2);
+      takeScreenshotDelayed(750);
+    });
+  };
+</script>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow-ref.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow-ref.html
new file mode 100644
index 00000000000..11b87deecca
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow-ref.html
@@ -0,0 +1,18 @@
+<!DOCTYPE html>
+<title>Reference for update playback rate zero</title>
+<style>
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+<body>
+  <div id="box"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation slows down so that it does not finish
+    before the screenshot. If any blue pixels appear in the screenshot,
+    the test fails.
+  </p>
+</body>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow.html
new file mode 100644
index 00000000000..db449f2ca59
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-slow.html
@@ -0,0 +1,62 @@
+
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="UTF-8">
+<title>Update playback rate zero</title>
+<link rel="match" href="update-playback-rate-slow-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #box-1, #box-2 {
+    border: 1px solid white;
+    height: 40px;
+    left: 40px;
+    position: absolute;
+    top: 40px;
+    width: 40px;
+  }
+  #box-1 {
+    background: blue;
+    z-index: 1;
+  }
+  #box-2 {
+    background: white;
+    transform: translateX(200px);
+    z-index: 2;
+  }
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+
+<body>
+  <div id="box-1"></div>
+  <div id="box-2"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation slows down so that it does not finish
+    before the screenshot. If any blue pixels appear in the screenshot,
+    the test fails.
+  </p>
+</body>
+<script>
+  onload = function() {
+    const elem = document.getElementById('box-1');
+    const anim = elem.animate([
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(200px)' },
+        { transform: 'translateX(200px)' }
+      ], {
+        duration: 1000
+      });
+
+    anim.ready.then(() => {
+      setTimeout(() => {
+        anim.updatePlaybackRate(0.5);
+      }, 500);
+      takeScreenshotDelayed(1000);
+    });
+  };
+</script>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero-ref.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero-ref.html
new file mode 100644
index 00000000000..26293a3aebb
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero-ref.html
@@ -0,0 +1,17 @@
+<!DOCTYPE html>
+<title>Reference for update playback rate zero</title>
+<style>
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+<body>
+  <div id="box"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation should stop behind an occluding rectangle.
+    If not fully occluded, the test fails.
+  </p>
+</body>
diff --git a/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero.html b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero.html
new file mode 100644
index 00000000000..bed08d630ca
--- /dev/null
+++ b/tests/wpt/web-platform-tests/web-animations/timing-model/animations/update-playback-rate-zero.html
@@ -0,0 +1,61 @@
+
+<!DOCTYPE html>
+<html class="reftest-wait">
+<meta charset="UTF-8">
+<title>Update playback rate zero</title>
+<link rel="match" href="update-playback-rate-zero-ref.html">
+<script src="/common/reftest-wait.js"></script>
+<style>
+  #box-1, #box-2 {
+    border: 1px solid white;
+    height: 40px;
+    left: 40px;
+    position: absolute;
+    top: 40px;
+    width: 40px;
+  }
+  #box-1 {
+    background: blue;
+    z-index: 1;
+  }
+  #box-2 {
+    background: white;
+    transform: translateX(200px);
+    z-index: 2;
+  }
+  #notes {
+    position: absolute;
+    left: 0px;
+    top: 100px;
+  }
+</style>
+
+<body>
+  <div id="box-1"></div>
+  <div id="box-2"></div>
+  <p id="notes">
+    This test creates a running animation and changes its playback rate
+    part way through. The animation should stop behind an occluding rectangle.
+    If not fully occluded, the test fails.
+  </p>
+</body>
+<script>
+  onload = function() {
+    const elem = document.getElementById('box-1');
+    const anim = elem.animate([
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(100px)' },
+        { transform: 'translateX(200px)' },
+        { transform: 'translateX(200px)' }
+      ], {
+        duration: 1000
+      });
+
+    anim.ready.then(() => {
+      setTimeout(() => {
+        anim.updatePlaybackRate(0);
+      }, 750);
+      takeScreenshotDelayed(1200);
+    });
+  };
+</script>
diff --git a/tests/wpt/web-platform-tests/web-nfc/NDEFReader_options.https.html b/tests/wpt/web-platform-tests/web-nfc/NDEFReader_scan_filter.https.html
similarity index 78%
rename from tests/wpt/web-platform-tests/web-nfc/NDEFReader_options.https.html
rename to tests/wpt/web-platform-tests/web-nfc/NDEFReader_scan_filter.https.html
index 6901e5cdcb2..4c1e7de4400 100644
--- a/tests/wpt/web-platform-tests/web-nfc/NDEFReader_options.https.html
+++ b/tests/wpt/web-platform-tests/web-nfc/NDEFReader_scan_filter.https.html
@@ -1,6 +1,6 @@
 <!DOCTYPE html>
 <meta charset=utf-8>
-<title>Web NFC: NDEFReader option tests</title>
+<title>Web NFC: NDEFReader.scan() filter tests</title>
 <link rel="author" title="Intel" href="http://www.intel.com"/>
 <link rel="help" href="https://w3c.github.io/web-nfc/"/>
 <script src="/resources/testharness.js"></script>
@@ -10,7 +10,7 @@
 
 'use strict';
 
-const NDEFReaderOptionTests =
+const multiScanOptionsTests =
   [
     {
       desc: "Test that reading data succeed when NDEFScanOptions'" +
@@ -78,7 +78,7 @@ const NDEFReaderOptionTests =
     }
   ];
 
-const ReadMultiMessagesTests =
+const multiMessagesTests =
   [
     {
       desc: "Test that filtering 'empty' record from different messages" +
@@ -147,21 +147,53 @@ const ReadMultiMessagesTests =
     }
   ];
 
-for (let NDEFReaderOptionTest of NDEFReaderOptionTests) {
-  testNDEFScanOptions(
-    NDEFReaderOptionTest.message,
-    NDEFReaderOptionTest.scanOptions,
-    NDEFReaderOptionTest.unmatchedScanOptions,
-    NDEFReaderOptionTest.desc
+for (let multiScanOptionsTest of multiScanOptionsTests) {
+  testMultiScanOptions(
+    multiScanOptionsTest.message,
+    multiScanOptionsTest.scanOptions,
+    multiScanOptionsTest.unmatchedScanOptions,
+    multiScanOptionsTest.desc
   );
 }
 
-for (let readMultiMessagesTest of ReadMultiMessagesTests) {
-  testReadingMultiMessages(
-    readMultiMessagesTest.message,
-    readMultiMessagesTest.scanOptions,
-    readMultiMessagesTest.unmatchedMessage,
-    readMultiMessagesTest.desc
+for (let multiMessagesTest of multiMessagesTests) {
+  testMultiMessages(
+    multiMessagesTest.message,
+    multiMessagesTest.scanOptions,
+    multiMessagesTest.unmatchedMessage,
+    multiMessagesTest.desc
   );
 }
+
+nfc_test(async (t, mockNFC) => {
+  const reader = new NDEFReader();
+  const controller = new AbortController();
+  const signal = controller.signal;
+  const textMsg = createMessage([createTextRecord(test_text_data)]);
+  const urlMsg = createMessage([createUrlRecord(test_url_data)]);
+  const mimeMsg = createMessage([createMimeRecord(test_buffer_data)]);
+
+  const readerWatcher = new EventWatcher(t, reader, ["reading", "error"]);
+  const promise = readerWatcher.wait_for("reading").then(event => {
+    controller.abort();
+    assertWebNDEFMessagesEqual(event.message, new NDEFMessage(mimeMsg));
+  });
+
+  const scanOptions1 = { recordType: "text", signal: signal };
+  const scanOptions2 = {recordType: "url", signal: signal };
+  const scanOptions3 = {recordType: "mime", signal: signal };
+
+  await reader.scan(scanOptions1);
+  await reader.scan(scanOptions2);
+  // There is maximum one filter for an NDEFReader object,
+  // last filter will replace all previous ones.
+  await reader.scan(scanOptions3);
+
+  mockNFC.setReadingMessage(textMsg);
+  mockNFC.setReadingMessage(urlMsg);
+  mockNFC.setReadingMessage(mimeMsg);
+  await promise;
+}, "Multiple scan() from the same NDEFReader object with new options should \
+replace existing filters.");
+
 </script>
diff --git a/tests/wpt/web-platform-tests/web-nfc/NDEFReadingEvent_constructor.https.html b/tests/wpt/web-platform-tests/web-nfc/NDEFReadingEvent_constructor.https.html
index 15ef6e466aa..3d734105e9c 100644
--- a/tests/wpt/web-platform-tests/web-nfc/NDEFReadingEvent_constructor.https.html
+++ b/tests/wpt/web-platform-tests/web-nfc/NDEFReadingEvent_constructor.https.html
@@ -37,4 +37,24 @@
     assertWebNDEFMessagesEqual(event.message, new NDEFMessage(message));
   }, 'NDEFReadingEvent constructor with valid parameters');
 
+  test(() => {
+    const record_init = createTextRecord(test_text_data);
+    const event = new NDEFReadingEvent('type',
+        {serialNumber: '', message: createMessage([record_init])});
+    assert_equals(event.type, 'type', 'type');
+    assert_equals(event.serialNumber, '', 'serialNumber');
+    assert_equals(1, event.message.records.length, 'only 1 record');
+
+    const record = new NDEFRecord(record_init);
+    assert_equals(record.recordType, 'text', 'recordType');
+    assert_equals(record.mediaType, null, 'mediaType');
+    assert_equals(record.encoding, 'utf-8', 'encoding');
+    assert_equals(record.lang, 'en', 'lang');
+
+    assert_equals(event.message.records[0].recordType, 'text', 'recordType');
+    assert_equals(event.message.records[0].mediaType, null, 'mediaType');
+    assert_equals(event.message.records[0].encoding, 'utf-8', 'encoding');
+    assert_equals(event.message.records[0].lang, null, 'lang is not set');
+  }, 'NDEFReadingEvent constructor does not set NDEFRecord#lang for any text records it embeds');
+
 </script>
diff --git a/tests/wpt/web-platform-tests/web-nfc/resources/nfc-helpers.js b/tests/wpt/web-platform-tests/web-nfc/resources/nfc-helpers.js
index eb3006114c7..0fe6fe80cb1 100644
--- a/tests/wpt/web-platform-tests/web-nfc/resources/nfc-helpers.js
+++ b/tests/wpt/web-platform-tests/web-nfc/resources/nfc-helpers.js
@@ -168,7 +168,7 @@ function assertWebNDEFMessagesEqual(message, expectedMessage) {
   }
 }
 
-function testNDEFScanOptions(message, scanOptions, unmatchedScanOptions, desc) {
+function testMultiScanOptions(message, scanOptions, unmatchedScanOptions, desc) {
   nfc_test(async (t, mockNFC) => {
     const reader1 = new NDEFReader();
     const reader2 = new NDEFReader();
@@ -192,8 +192,7 @@ function testNDEFScanOptions(message, scanOptions, unmatchedScanOptions, desc) {
   }, desc);
 }
 
-function testReadingMultiMessages(
-    message, scanOptions, unmatchedMessage, desc) {
+function testMultiMessages(message, scanOptions, unmatchedMessage, desc) {
   nfc_test(async (t, mockNFC) => {
     const reader = new NDEFReader();
     const controller = new AbortController();
diff --git a/tests/wpt/web-platform-tests/webdriver/tests/find_element_from_element/find.py b/tests/wpt/web-platform-tests/webdriver/tests/find_element_from_element/find.py
index b107a8957e0..56e216bb646 100644
--- a/tests/wpt/web-platform-tests/webdriver/tests/find_element_from_element/find.py
+++ b/tests/wpt/web-platform-tests/webdriver/tests/find_element_from_element/find.py
@@ -1,4 +1,3 @@
-# META: timeout=long
 import pytest
 
 from webdriver.transport import Response
diff --git a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
index 73a0fe1e5a1..342e325dad2 100644
--- a/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
+++ b/tests/wpt/web-platform-tests/webrtc/RTCPeerConnection-setRemoteDescription-rollback.html
@@ -216,9 +216,33 @@
 
     await pc2.setRemoteDescription({type: "rollback"});
     assert_equals(pc2.getTransceivers().length, 1);
-    assert_equals(pc2.getTransceivers()[0].mid, null)
+    assert_equals(pc2.getTransceivers()[0].mid, null);
+    assert_equals(pc2.getTransceivers()[0].receiver.transport, null);
   }, "rollback of a remote offer should keep a transceiver");
 
+  promise_test(async t => {
+    const pc1 = new RTCPeerConnection();
+    t.add_cleanup(() => pc1.close());
+    const pc2 = new RTCPeerConnection();
+    t.add_cleanup(() => pc2.close());
+
+    const stream = await getNoiseStream({video: true});
+    t.add_cleanup(() => stream.getTracks().forEach(track => track.stop()));
+    pc1.addTrack(stream.getTracks()[0], stream);
+
+    const stream2 = await getNoiseStream({video: true});
+    t.add_cleanup(() => stream2.getTracks().forEach(track => track.stop()));
+    pc2.addTrack(stream2.getTracks()[0], stream2);
+
+    await pc2.setRemoteDescription(await pc1.createOffer());
+    assert_equals(pc2.getTransceivers().length, 1);
+
+    await pc2.setRemoteDescription({type: "rollback"});
+    assert_equals(pc2.getTransceivers().length, 1);
+    assert_equals(pc2.getTransceivers()[0].mid, null);
+    assert_equals(pc2.getTransceivers()[0].receiver.transport, null);
+  }, "rollback of a remote offer should keep a transceiver created by addtrack");
+
   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
     t.add_cleanup(() => pc1.close());
@@ -257,14 +281,16 @@
 
     const offer = await pc.createOffer();
     await pc.setLocalDescription(offer);
+    assert_not_equals(pc.getTransceivers()[0].sender.transport, null);
     await pc.setRemoteDescription({type: "rollback"});
     assert_equals(pc.getTransceivers().length, 1);
     assert_equals(pc.getTransceivers()[0].mid, null)
+    assert_equals(pc.getTransceivers()[0].sender.transport, null);
     await pc.setLocalDescription(offer);
     assert_equals(pc.getTransceivers().length, 1);
     await signalingstatechangeResolver.promise;
     assert_array_equals(states, ['have-local-offer', 'stable', 'have-local-offer']);
-  }, "rollback local offer explicitly");
+  }, "explicit rollback of local offer should remove transceivers and transport");
 
   promise_test(async t => {
     const pc1 = new RTCPeerConnection();
@@ -486,7 +512,6 @@
 
     await pc1.setLocalDescription(offer1);
     await pc2.setRemoteDescription(pc1.pendingLocalDescription);
-
     await pc2.setLocalDescription(await pc2.createAnswer());
     await pc1.setRemoteDescription(pc2.localDescription);
 
@@ -505,8 +530,11 @@
     assert_equals(remoteStreams[0].getTracks().length, 0);
     assert_equals(remoteStreams[1].getTracks()[0].id, track.id);
     await pc2.setRemoteDescription({type: "rollback"});
-    assert_equals(remoteStreams[0].getTracks().length, 1);
-    assert_equals(remoteStreams[0].getTracks()[0].id, track.id);
+    assert_equals(remoteStreams.length, 3);
+    assert_equals(remoteStreams[0].id, remoteStreams[2].id);
+    assert_equals(remoteStreams[1].getTracks().length, 0);
+    assert_equals(remoteStreams[2].getTracks().length, 1);
+    assert_equals(remoteStreams[2].getTracks()[0].id, track.id);
 
   }, "rollback of a remote offer with stream changes");
 
diff --git a/tests/wpt/web-platform-tests/xhr/idlharness.any.js b/tests/wpt/web-platform-tests/xhr/idlharness.any.js
index f36f0ce0296..d45e52e2341 100644
--- a/tests/wpt/web-platform-tests/xhr/idlharness.any.js
+++ b/tests/wpt/web-platform-tests/xhr/idlharness.any.js
@@ -1,6 +1,7 @@
 // META: global=sharedworker
 // META: script=/resources/WebIDLParser.js
 // META: script=/resources/idlharness.js
+// META: timeout=long
 
 idl_test(
   ['xhr'],