chromium/third_party/blink/web_tests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/border-radius.html

<!doctype html>
<meta charset="utf-8">
<title>border radius properties</title>
<link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#dom-stylepropertymap-get">
<link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#dom-stylepropertymap-set">
<link rel="help" href="https://drafts.css-houdini.org/css-typed-om-1/#property-stle-value-normalization">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="../../resources/testhelper.js"></script>
<script src="resources/testsuite.js"></script>
<body>
<div id="log"></div>
<script>
'use strict';

for (const suffix of ['top-left', 'top-right', 'bottom-left', 'bottom-right']) {
  // Computed value is always a pair of values, which are not supported in
  // Typed OM level 1.
  runPropertyTests('border-' + suffix + '-radius', [
    {
      syntax: '<length>',
      specified: assert_is_equal_with_range_handling,
      computed: (_, result) => assert_is_unsupported(result)
    },
    {
      syntax: '<percentage>',
      specified: assert_is_equal_with_range_handling,
      computed: (_, result) => assert_is_unsupported(result)
    },
  ]);
}

// shorthand
runUnsupportedPropertyTests('border-radius', [
  '30px', '25% 10%', '10% / 50%', '50% 20% / 10% 40%'
]);

</script>