From 2a83b80eedeac315a4a5b07eb30d690a7c077c16 Mon Sep 17 00:00:00 2001
From: Josh Matthews <josh@joshmatthews.net>
Date: Tue, 2 Jun 2020 17:05:52 -0400
Subject: [PATCH] Add reftest for empty stacking contexts.

---
 tests/wpt/mozilla/meta/MANIFEST.json            | 17 +++++++++++++++++
 .../tests/css/stacking-context-empty-ref.html   |  1 +
 .../tests/css/stacking-context-empty.html       | 14 ++++++++++++++
 3 files changed, 32 insertions(+)
 create mode 100644 tests/wpt/mozilla/tests/css/stacking-context-empty-ref.html
 create mode 100644 tests/wpt/mozilla/tests/css/stacking-context-empty.html

diff --git a/tests/wpt/mozilla/meta/MANIFEST.json b/tests/wpt/mozilla/meta/MANIFEST.json
index f5225f39757..6e7b59a81a8 100644
--- a/tests/wpt/mozilla/meta/MANIFEST.json
+++ b/tests/wpt/mozilla/meta/MANIFEST.json
@@ -6080,6 +6080,19 @@
       {}
      ]
     ],
+    "stacking-context-empty.html": [
+     "952c73f1680805dc3a976446bb509cb924a6a702",
+     [
+      null,
+      [
+       [
+        "/_mozilla/css/stacking-context-empty-ref.html",
+        "=="
+       ]
+      ],
+      {}
+     ]
+    ],
     "stacking_context_overflow_a.html": [
      "dc379afb77977b0e99a0a8ce3321c9afff236a37",
      [
@@ -10311,6 +10324,10 @@
      "0525bab6b11800d29f90efc7efef0f43165fba01",
      []
     ],
+    "stacking-context-empty-ref.html": [
+     "8006e2413694b0776f000d3b8138bed29812b7cd",
+     []
+    ],
     "stacking_context_overflow_ref.html": [
      "49991c449ab4f42afae6f512a7f184e70d77bc34",
      []
diff --git a/tests/wpt/mozilla/tests/css/stacking-context-empty-ref.html b/tests/wpt/mozilla/tests/css/stacking-context-empty-ref.html
new file mode 100644
index 00000000000..8006e241369
--- /dev/null
+++ b/tests/wpt/mozilla/tests/css/stacking-context-empty-ref.html
@@ -0,0 +1 @@
+<p><img src="100x100_green.png">
diff --git a/tests/wpt/mozilla/tests/css/stacking-context-empty.html b/tests/wpt/mozilla/tests/css/stacking-context-empty.html
new file mode 100644
index 00000000000..952c73f1680
--- /dev/null
+++ b/tests/wpt/mozilla/tests/css/stacking-context-empty.html
@@ -0,0 +1,14 @@
+<link rel="match" href="stacking-context-empty-ref.html">
+<style>
+  div {
+        border-radius: 2px;
+        background: #777;
+        border-bottom: 1px solid #f1f1f1;
+  }
+.test {
+        transform: scaleX(0);
+}
+</style>
+<p><img src="100x100_green.png">
+<div class="test">aaa</div>
+<p><img class="test" src="100x100_green.png">