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<!DOCTYPE html>
<meta charset="UTF-8">
<title>font-variation-settings composition</title>
<link rel="help" href="https://drafts.csswg.org/css-fonts-4/#propdef-font-variation-settings">
<meta name="assert" content="font-variation-settings supports animation pairwise by 'like' properties">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<body></body>
<script>
function compareVariationSettings(actual, expected) {
// The order of <axis, value> pairs in the variation-settings list is arbitrary,
// so we sort the pairs before attempting to compare. (We only need to use this
// when multiple settings are expected, otherwise the default comparison is OK.)
assert_equals(normalizeValue(actual).split(", ").sort().join(", "),
normalizeValue(expected).split(", ").sort().join(", "));
};
test_composition({
property: 'font-variation-settings',
underlying: "'test' 50",
addFrom: "'test' 100",
addTo: "'test' 200",
}, [
{at: -0.3, expect: "'test' 120"},
{at: 0, expect: "'test' 150"},
{at: 0.5, expect: "'test' 200"},
{at: 1, expect: "'test' 250"},
{at: 1.5, expect: "'test' 300"},
]);
test_composition({
property: 'font-variation-settings',
underlying: "'test' 50",
addFrom: "'test' 100",
replaceTo: "'test' 200",
}, [
{at: -0.3, expect: "'test' 135"},
{at: 0, expect: "'test' 150"},
{at: 0.5, expect: "'test' 175"},
{at: 1, expect: "'test' 200"},
{at: 1.5, expect: "'test' 225"},
]);
test_composition({
property: 'font-variation-settings',
underlying: "'test' 100",
addFrom: 'normal',
replaceTo: "'test' 200",
}, [
{at: -0.3, expect: 'normal'},
{at: 0, expect: 'normal'},
{at: 0.5, expect: "'test' 200"},
{at: 1, expect: "'test' 200"},
{at: 1.5, expect: "'test' 200"},
]);
test_composition({
property: 'font-variation-settings',
underlying: "'test' 100",
addFrom: 'normal',
addTo: "'test' 200",
}, [
{at: -0.3, expect: 'normal'},
{at: 0, expect: 'normal'},
{at: 0.5, expect: "'test' 300"},
{at: 1, expect: "'test' 300"},
{at: 1.5, expect: "'test' 300"},
]);
test_composition({
property: 'font-variation-settings',
underlying: "'aaaa' 100, 'bbbb' 200",
addFrom: "'aaaa' 20, 'bbbb' 50",
addTo: "'aaaa' 30, 'bbbb' 100",
comparisonFunction: compareVariationSettings,
}, [
{at: -0.3, expect: "'aaaa' 117, 'bbbb' 235"},
{at: 0, expect: "'aaaa' 120, 'bbbb' 250"},
{at: 0.5, expect: "'aaaa' 125, 'bbbb' 275"},
{at: 1, expect: "'aaaa' 130, 'bbbb' 300"},
{at: 1.5, expect: "'aaaa' 135, 'bbbb' 325"},
]);
test_composition({
property: 'font-variation-settings',
underlying: "'test' 100",
addFrom: "'aaaa' 20, 'bbbb' 50",
addTo: "'aaaa' 30, 'bbbb' 100",
comparisonFunction: compareVariationSettings,
}, [
{at: -0.3, expect: "'aaaa' 17, 'bbbb' 35"},
{at: 0, expect: "'aaaa' 20, 'bbbb' 50"},
{at: 0.5, expect: "'aaaa' 25, 'bbbb' 75"},
{at: 1, expect: "'aaaa' 30, 'bbbb' 100"},
{at: 1.5, expect: "'aaaa' 35, 'bbbb' 125"},
]);
</script>
</body>
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