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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-text-decor/animations/text-underline-offset-interpolation.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<meta charset="UTF-8">
<meta name="test" content="text-underline-offset 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>
<style>
.target {
font: 16px sans-serif;
}
</style>
<body>
<template id="target-template">T</template>
</body>
<script>
test_interpolation({
property: 'text-underline-offset',
from: '15px',
to: '0px',
}, [
{at: 0, expect: '15px'},
{at: 0.3, expect: '10.5px'},
{at: 0.6, expect: '6px'},
{at: 1, expect: '0px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '0px',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '11.2px'},
{at: 0.6, expect: '6.4px'},
{at: 1, expect: '0px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '32px',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '20.8px'},
{at: 0.6, expect: '25.6px'},
{at: 1, expect: '32px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '0em',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '11.2px'},
{at: 0.6, expect: '6.4px'},
{at: 1, expect: '0px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '2em',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '20.8px'},
{at: 0.6, expect: '25.6px'},
{at: 1, expect: '32px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '0%',
}, [
{at: 0, expect: '100%'},
{at: 0.3, expect: '70%'},
{at: 0.6, expect: '40%'},
{at: 1, expect: '0%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '200%',
}, [
{at: 0, expect: '100%'},
{at: 0.3, expect: '130%'},
{at: 0.6, expect: '160%'},
{at: 1, expect: '200%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '0em',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '11.2px'},
{at: 0.6, expect: '6.4px'},
{at: 1, expect: '0px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '2em',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '20.8px'},
{at: 0.6, expect: '25.6px'},
{at: 1, expect: '32px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '0%',
}, [
{at: 0, expect: 'calc(0% + 16px)'},
{at: 0.3, expect: 'calc(0% + 11.2px)'},
{at: 0.6, expect: 'calc(0% + 6.4px)'},
{at: 1, expect: '0%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '16px',
to: '200%',
}, [
{at: 0, expect: 'calc(0% + 16px)'},
{at: 0.3, expect: 'calc(60% + 11.2px)'},
{at: 0.6, expect: 'calc(120% + 6.4px)'},
{at: 1, expect: '200%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '0px',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '11.2px'},
{at: 0.6, expect: '6.4px'},
{at: 1, expect: '0px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '32px',
}, [
{at: 0, expect: '16px'},
{at: 0.3, expect: '20.8px'},
{at: 0.6, expect: '25.6px'},
{at: 1, expect: '32px'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '0%',
}, [
{at: 0, expect: 'calc(0% + 16px)'},
{at: 0.3, expect: 'calc(0% + 11.2px)'},
{at: 0.6, expect: 'calc(0% + 6.4px)'},
{at: 1, expect: '0%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '1em',
to: '200%',
}, [
{at: 0, expect: 'calc(0% + 16px)'},
{at: 0.3, expect: 'calc(60% + 11.2px)'},
{at: 0.6, expect: 'calc(120% + 6.4px)'},
{at: 1, expect: '200%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '0px',
}, [
{at: 0, expect: '100%'},
{at: 0.3, expect: '70%'},
{at: 0.6, expect: '40%'},
{at: 1, expect: '0%'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '32px',
}, [
{at: 0, expect: 'calc(100% + 0px)'},
{at: 0.3, expect: 'calc(70% + 9.6px)'},
{at: 0.6, expect: 'calc(40% + 19.2px)'},
{at: 1, expect: 'calc(0% + 32px)'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '0em',
}, [
{at: 0, expect: 'calc(100% + 0em)'},
{at: 0.3, expect: 'calc(70% + 0em)'},
{at: 0.6, expect: 'calc(40% + 0em)'},
{at: 1, expect: 'calc(0% + 0em)'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '100%',
to: '2em',
}, [
{at: 0, expect: '100%'},
{at: 0.3, expect: 'calc(70% + 9.6px)'},
{at: 0.6, expect: 'calc(40% + 19.2px)'},
{at: 1, expect: 'calc(0% + 32px)'},
]);
test_interpolation({
property: 'text-underline-offset',
from: '0%',
to: '100%',
}, [
{at: 0, expect: '0%'},
{at: 0.3, expect: '30%'},
{at: 0.6, expect: '60%'},
{at: 1, expect: '100%'},
]);
</script>