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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-backgrounds/animations/border-image-outset-interpolation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="UTF-8">
<title>border-image-outset interpolation</title>
<meta name="assert" content="border-image-outset 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 {
border-image-outset: 10px;
}
.target {
width: 50px;
height: 50px;
background-color: black;
display: inline-block;
border: 25px;
margin-right: 50px;
border-image-slice: 30%;
background-clip: content-box;
border-image-source: linear-gradient(45deg, pink, blue, white, black, green);
border-image-outset: 1px;
}
.expected {
background-color: green;
}
</style>
<body></body>
<script>
test_interpolation({
property: 'border-image-outset',
from: neutralKeyframe,
to: '2px',
}, [
{at: -0.3, expect: '0.7px'},
{at: 0, expect: '1px'},
{at: 0.3, expect: '1.3px'},
{at: 0.6, expect: '1.6px'},
{at: 1, expect: '2px'},
{at: 1.5, expect: '2.5px'},
]);
test_interpolation({
property: 'border-image-outset',
from: 'initial',
to: '2',
}, [
{at: -0.3, expect: '0'}, // Non-negative
{at: 0, expect: '0'},
{at: 0.3, expect: '0.6'},
{at: 0.6, expect: '1.2'},
{at: 1, expect: '2'},
{at: 1.5, expect: '3'},
]);
test_interpolation({
property: 'border-image-outset',
from: 'inherit',
to: '2px',
}, [
{at: -0.3, expect: '12.4px'},
{at: 0, expect: '10px'},
{at: 0.3, expect: '7.6px'},
{at: 0.6, expect: '5.2px'},
{at: 1, expect: '2px'},
{at: 1.5, expect: '0px'},
]);
test_interpolation({
property: 'border-image-outset',
from: 'unset',
to: '2',
}, [
{at: -0.3, expect: '0'}, // Non-negative
{at: 0, expect: '0'},
{at: 0.3, expect: '0.6'},
{at: 0.6, expect: '1.2'},
{at: 1, expect: '2'},
{at: 1.5, expect: '3'},
]);
test_interpolation({
property: 'border-image-outset',
from: '0px',
to: '5px',
}, [
{at: -0.3, expect: '0px'}, // Non-negative
{at: 0, expect: '0px'},
{at: 0.3, expect: '1.5px'},
{at: 0.6, expect: '3px'},
{at: 1, expect: '5px'},
{at: 1.5, expect: '7.5px'},
]);
test_interpolation({
property: 'border-image-outset',
from: '0',
to: '1',
}, [
{at: -0.3, expect: '0'}, // Non-negative
{at: 0, expect: '0'},
{at: 0.3, expect: '0.3'},
{at: 0.6, expect: '0.6'},
{at: 1, expect: '1'},
{at: 1.5, expect: '1.5'},
]);
test_interpolation({
property: 'border-image-outset',
from: '1 2 3px 4px',
to: '101 102 103px 104px',
}, [
{at: -0.3, expect: '0 0 0px 0px'}, // Non-negative
{at: 0, expect: '1 2 3px 4px'},
{at: 0.3, expect: '31 32 33px 34px'},
{at: 0.6, expect: '61 62 63px 64px'},
{at: 1, expect: '101 102 103px 104px'},
{at: 1.5, expect: '151 152 153px 154px'},
]);
</script>