chromium/third_party/blink/web_tests/external/wpt/css/css-typed-om/the-stylepropertymap/properties/grid-template-columns-rows.html

<!doctype html>
<meta charset="utf-8">
<title>'grid-template-columns' and 'grid-template-rows' 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';

function assert_is_equal_with_clamping_percentage(input, result) {
  const percent = input.to('percent').value;

  if (percent < 0)
    assert_style_value_equals(result, new CSSUnitValue(0, 'percent'));
  else
    assert_style_value_equals(result, new CSSUnitValue(percent, 'percent'));
}

for (const suffix of ['columns', 'rows']) {
  runPropertyTests(`grid-template-${suffix}`, [
    { syntax: 'none' },
    {
      syntax: '<length>',
      specified: assert_is_equal_with_range_handling
    },
    {
      syntax: '<percentage>',
      specified: assert_is_equal_with_range_handling,
      computed: assert_is_equal_with_clamping_percentage
    },
    {
      syntax: '<flex>',
      specified: assert_is_equal_with_range_handling
    }
  ]);

  runUnsupportedPropertyTests(`grid-template-${suffix}`, [
    '[linename1] 100px [linename2 linename3]',
    '200px repeat(auto-fill, 100px) 300px'
  ]);
}

</script>