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<!DOCTYPE html>
<meta charset="UTF-8">
<title>shape-image-threshold interpolation</title>
<link rel="help" href="https://drafts.csswg.org/css-shapes/#shape-image-threshold-property">
<meta name="assert" content="shape-image-threshold 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-image-threshold: 0.4;
}
.target {
shape-image-threshold: 0.6;
}
</style>
<body></body>
<script>
test_interpolation({
property: 'shape-image-threshold',
from: neutralKeyframe,
to: '0.8',
}, [
{at: -1.5, expect: '0.3'},
{at: -0.5, expect: '0.5'},
{at: 0, expect: '0.6'},
{at: 0.5, expect: '0.7'},
{at: 1, expect: '0.8'},
{at: 1.5, expect: '0.9'},
]);
test_interpolation({
property: 'shape-image-threshold',
from: 'initial',
to: '0.8',
}, [
{at: -1.5, expect: '0'},
{at: -0.5, expect: '0'},
{at: 0, expect: '0'},
{at: 0.5, expect: '0.4'},
{at: 1, expect: '0.8'},
{at: 1.5, expect: '1'},
]);
test_interpolation({
property: 'shape-image-threshold',
from: 'inherit',
to: '0.8',
}, [
{at: -1.5, expect: '0'},
{at: -0.5, expect: '0.2'},
{at: 0, expect: '0.4'},
{at: 0.5, expect: '0.6'},
{at: 1, expect: '0.8'},
{at: 1.5, expect: '1'},
]);
test_interpolation({
property: 'shape-image-threshold',
from: 'unset',
to: '0.8',
}, [
{at: -1.5, expect: '0'},
{at: -0.5, expect: '0'},
{at: 0, expect: '0'},
{at: 0.5, expect: '0.4'},
{at: 1, expect: '0.8'},
{at: 1.5, expect: '1'},
]);
test_interpolation({
property: 'shape-image-threshold',
from: '0.5',
to: '1'
}, [
{at: -1.5, expect: '0'},
{at: -0.5, expect: '0.25'},
{at: 0, expect: '0.5'},
{at: 0.5, expect: '0.75'},
{at: 1, expect: '1'},
{at: 1.5, expect: '1'}
]);
</script>
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