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Auto merge of #14860 - asajeffrey:constellation-index-past-correctly-when-discarding, r=cbrewster

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Index the session past correctly when discarding.

<!-- Please describe your changes on the following line: -->

Oops, indexed from the wrong end when discarding documents in #14312.

---
<!-- Thank you for contributing to Servo! Please replace each `[ ]` by `[X]` when the step is complete, and replace `__` with appropriate data: -->
- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes do not require tests because we're not testing document discarding

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This commit is contained in:
bors-servo 2017-01-06 03:53:35 -08:00 • committed by GitHub
commit 7f9fd0ec1f
4 changed files with 47 additions and 4 deletions
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6
tests/wpt/mozilla/meta/MANIFEST.json
View file

@ -15128,6 +15128,12 @@
"url": "/_mozilla/mozilla/service-workers/service-worker-registration.html"
}
],
"mozilla/servo-max-session-history.html": [
{
"path": "mozilla/servo-max-session-history.html",
"url": "/_mozilla/mozilla/servo-max-session-history.html"
}
],
"mozilla/sigsegv.html": [
{
"path": "mozilla/sigsegv.html",

36
tests/wpt/mozilla/tests/mozilla/servo-max-session-history.html Normal file
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@ -0,0 +1,36 @@
<html>
<head>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body></body>
<script>
// This test goes forward by X pages, then back by Y pages,
// then checks to see if that triggered a reload.
// If it did, the document must have been discarded,
// The current page number (stored in the URL search string)
var page_number = location.search.substring(1) | 0;
// The number of pages to go forward by.
// This should be more than go_back_by, to ensure that
// we actually do more than one back traversal.
var go_forward_by = 24;
// The number of pages to go back by.
// This should be more than the default --max-session-history,
// to ensure that going back reloads the page.
var go_back_by = Math.min(page_number, 20);
if (history.length < go_forward_by) {
// Keep loading new pages until we have loaded enough of them.
location.assign("?" + (page_number + 1));
} else if (page_number === 0) {
// If we got back to the beginning, we must have triggered reloads.
test(function() {}, "Forward then back triggered a reload.");
} else {
// Otherwise, go back.
history.go(-go_back_by);
}
</script>
</html>