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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-text/animations/letter-spacing-composition.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="UTF-8">
<title>letter-spacing composition</title>
<meta name="test" content="letter-spacing supports animation by computed value type">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<body>
<script src="../interpolation/resources/interpolation-test.js"></script>
<script>
test_composition({
property: 'letter-spacing',
underlying: '50px',
addFrom: '100px',
addTo: '200px',
}, [
{at: -0.3, expect: '120px'},
{at: 0, expect: '150px'},
{at: 0.5, expect: '200px'},
{at: 1, expect: '250px'},
{at: 1.5, expect: '300px'},
]);
test_composition({
property: 'letter-spacing',
underlying: '100px',
addFrom: '10px',
addTo: '2px',
}, [
{at: -0.5, expect: '114px'},
{at: 0, expect: '110px'},
{at: 0.5, expect: '106px'},
{at: 1, expect: '102px'},
{at: 1.5, expect: '98px'},
]);
test_composition({
property: 'letter-spacing',
underlying: '50px',
addFrom: '100px',
replaceTo: '200px',
}, [
{at: -0.3, expect: '135px'},
{at: 0, expect: '150px'},
{at: 0.5, expect: '175px'},
{at: 1, expect: '200px'},
{at: 1.5, expect: '225px'},
]);
</script>
</body>