testing/web-platform/tests/css/css-values/calc-size/animation/interpolate-size-max-height-composition.html
author dadaa <daisuke.akatsuka@birchill.co.jp>
Wed, 09 Jul 2025 04:53:58 +0000 (10 hours ago)
changeset 795836 a5500d271fe3a1fefb4d81d96fc4abd00d9eade7
parent 758827 612105cd11e6c3f305cbdc72060a738bb12faafd
permissions -rw-r--r--
Bug 1957280: Limit user's mouse amount for tree component r=places-reviewers,reusable-components-reviewers,masayuki,mstriemer Differential Revision: https://phabricator.services.mozilla.com/D251224
<!DOCTYPE html>
<meta charset="UTF-8">
<title>max-height composition with interpolate-size: allow-keywords</title>
<link rel="help" href="https://drafts.csswg.org/css-sizing-3/#propdef-max-height">
<link rel="help" href="https://drafts.csswg.org/css-values-5/#interpolate-size">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
:root {
  interpolate-size: allow-keywords;
}
.parent {
  height: 200px;
}
.target {
  width: 100px;
  height: 150px;
}
.target::before {
  display: block;
  content: "";
  width: 100px;
  height: 50px;
}
</style>

<body>
<script>

// TODO(https://issues.chromium.org/issues/40339056): The specific
// syntax details of these expectations probably need further review to
// check against the calc() simplification rules and other parts of the
// specification.

test_composition({
  property: 'max-height',
  underlying: 'fit-content', /* 50px */
  addFrom: '100px',
  addTo: '200px',
}, [
  {at: -0.3, expect: 'calc-size(fit-content, (100px + size) * 1.3 + (200px + size) * -0.3)'},
  {at: 0, expect: 'calc-size(fit-content, (100px + size) * 1 + (200px + size) * 0)'},
  {at: 0.5, expect: 'calc-size(fit-content, (100px + size) * 0.5 + (200px + size) * 0.5)'},
  {at: 1, expect: 'calc-size(fit-content, (100px + size) * 0 + (200px + size) * 1)'},
  {at: 1.5, expect: 'calc-size(fit-content, (100px + size) * -0.5 + (200px + size) * 1.5)'},
]);

test_composition({
  property: 'max-height',
  underlying: 'fit-content', /* 50px */
  addFrom: 'min-content', /* 50px (fit-content is ignored) */
  addTo: '200px', /* adds to 250px, can't interpolate with from */
}, [
  {at: -0.3, expect: 'min-content'},
  {at: 0, expect: 'min-content'},
  {at: 0.5, expect: 'calc-size(fit-content, 200px + size)'},
  {at: 1, expect: 'calc-size(fit-content, 200px + size)'},
  {at: 1.5, expect: 'calc-size(fit-content, 200px + size)'},
]);
</script>
</body>