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<title>'grid-auto-columns' and 'grid-auto-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'));
}
// grid-auto-columns/rows are list-valued.
// Run list-valued tests here too.
for (const suffix of ['columns', 'rows']) {
runPropertyTests(`grid-auto-${suffix}`, [
{ syntax: 'min-content' },
{ syntax: 'max-content' },
{ syntax: 'auto' },
{
syntax: '<length>',
specified: assert_is_equal_with_range_handling
},
{
syntax: '<percentage>',
specified: assert_is_equal_with_range_handling,
computed: assert_is_equal_with_clamping_percentage
},
{ syntax: '<flex>' },
]);
runUnsupportedPropertyTests(`grid-auto-${suffix}`, [
'minmax(100px, auto)', 'fit-content(400px)'
]);
}
</script>