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<!DOCTYPE html>
<meta charset="UTF-8">
<title>shape-margin interpolation</title>
<link rel="help" href="https://drafts.csswg.org/css-shapes/#shape-margin-property">
<meta name="assert" content="shape-margin supports animation by computed value">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>
<style>
.parent {
shape-margin: 30px;
}
.target {
shape-margin: 10px;
}
</style>
<body></body>
<script>
test_interpolation({
property: 'shape-margin',
from: neutralKeyframe,
to: '20px',
}, [
{at: -0.3, expect: '7px'},
{at: 0, expect: '10px'},
{at: 0.3, expect: '13px'},
{at: 0.6, expect: '16px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '25px'},
]);
test_interpolation({
property: 'shape-margin',
from: 'initial',
to: '20px',
}, [
{at: -0.3, expect: '0px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'shape-margin',
from: 'inherit',
to: '20px',
}, [
{at: -0.3, expect: '33px'},
{at: 0, expect: '30px'},
{at: 0.3, expect: '27px'},
{at: 0.6, expect: '24px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '15px'},
]);
test_interpolation({
property: 'shape-margin',
from: 'unset',
to: '20px',
}, [
{at: -0.3, expect: '0px'},
{at: 0, expect: '0px'},
{at: 0.3, expect: '6px'},
{at: 0.6, expect: '12px'},
{at: 1, expect: '20px'},
{at: 1.5, expect: '30px'},
]);
test_interpolation({
property: 'shape-margin',
from: '0px',
to: '100px'
}, [
{at: -0.3, expect: '0px'}, // CSS shape-margin can't be negative.
{at: 0, expect: '0px'},
{at: 0.3, expect: '30px'},
{at: 0.6, expect: '60px'},
{at: 1, expect: '100px'},
{at: 1.5, expect: '150px'},
]);
</script>
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