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Update web-platform-tests to revision b'468d01bbd84da2babf265c6af46947be68713440'

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WPT Sync Bot 2021-09-07 11:16:33 +00:00 • committed by cybai
parent 35e95f55a1
commit 58e8ee674b
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tests/wpt/web-platform-tests/css/css-overflow/scrollbar-gutter-propagation-002.html Normal file
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<!doctype html>
<meta charset="utf-8">
<title>CSS Overflow: scrollbar-gutter on the root, scrolling</title>
<link rel="author" title="Felipe Erias Morandeira" href="mailto:felipeerias@igalia.com" />
<link rel="help" href="https://drafts.csswg.org/css-overflow-4/#scrollbar-gutter-property" />
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
<style>
body,
html {
margin: 0;
padding: 0;
border: none;
}
:root {
scrollbar-gutter: stable;
}
#content {
background: green;
width: 100%;
/* force scrolling */
height: 200vh;
}
</style>
<body>
<div id="content"></div>
<script type="text/javascript">
setup({ explicit_done: true });
test(function () {
let root = document.documentElement;
let body = document.body;
let content = document.getElementById('content');
// Note: as per the spec, the clientWidth of the root element is
// "viewport width excluding the size of a rendered scroll bar (if any)"
// which does not take scrollbar-gutter into account.
// Since no such special case exists for offsetWidth, this means that here
// root.clientWidth is greater than root.offsetWidth (!!!).
assert_less_than(root.offsetWidth, window.innerWidth, "viewport has gutter");
assert_equals(body.offsetWidth, root.offsetWidth, "body matches root");
assert_equals(body.clientWidth, body.offsetWidth, "body has no gutter");
assert_equals(content.offsetWidth, body.clientWidth, "content matches body");
}, "viewport has gutter, others do not");
done();
</script>
</body>