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Bug 1509465 [wpt PR 14201] - CSS: WPT for :first-child :last-child, a=testonly 

Automatic update from web-platform-tests
CSS: WPT for :first-child :last-child

Promote our :first-child :last-child invalidation layout test to WPT.

https://drafts.csswg.org/selectors-4/#the-first-child-pseudo

Change-Id: I3c2e1af82ef2dac58ec5bfe642b156289457bb22
Reviewed-on: https://chromium-review.googlesource.com/c/1348873
Reviewed-by: Rune Lillesveen <futhark@chromium.org>
Commit-Queue: Eric Willigers <ericwilligers@chromium.org>
Cr-Commit-Position: refs/heads/master@{#610696}

--

wpt-commits: 732cc9161d1302127fd4b99a50c13bdff7e253ce
wpt-pr: 14201
This commit is contained in:
Eric Willigers 2018-11-30 18:01:52 +00:00 коммит произвёл James Graham
Родитель 7f214ac8c6
Коммит ad2b23b187
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testing/web-platform/tests/css/selectors/invalidation/first-child-last-child.html Normal file
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Selectors Invalidation: :first-child :last-child</title>
<link rel="help" href="https://drafts.csswg.org/selectors-4/#the-first-child-pseudo">
<meta name="assert" content="This tests that the :first-child and :last-child selectors are effective">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
div {
color: black;
}
span:first-child {
color: blue;
}
span:last-child {
color: red;
}
</style>
</head>
<body>
<div id="target"><span>first-initially</span><span>last-initially</span></div>
<script>
'use strict';
const black = 'rgb(0, 0, 0)';
const blue = 'rgb(0, 0, 255)';
const red = 'rgb(255, 0, 0)';
test(() => {
const target = document.querySelector('#target');
const first = target.firstChild;
assert_equals(getComputedStyle(first).color, blue);
target.insertAdjacentHTML('afterbegin', '\n<span>foo</span><span>bar</span>');
assert_equals(getComputedStyle(target.firstElementChild).color, blue);
assert_equals(getComputedStyle(first).color, black);
while (target.firstElementChild !== first)
target.removeChild(target.firstElementChild);
assert_equals(getComputedStyle(first).color, blue);
}, 'Adding multiple nodes at once should invalidate :first-child correctly.');
test(() => {
const target = document.querySelector('#target');
const last = target.lastChild;
assert_equals(getComputedStyle(last).color, red);
target.insertAdjacentHTML('beforeend', '\n<span>foo</span><span>bar</span>');
assert_equals(getComputedStyle(target.lastChild).color, red);
assert_equals(getComputedStyle(last).color, black);
while (target.lastChild !== last)
target.removeChild(target.lastChild);
assert_equals(getComputedStyle(last).color, red);
}, 'Adding multiple nodes at once should invalidate :last-child correctly.');
</script>
</body>
</html>