text-underline-offset-interpolation.html

<!DOCTYPE html>
<meta charset="UTF-8">
<link rel="help" href="https://www.w3.org/TR/css-text-decor-4/#underline-offset">
<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(120% + 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(100% + 9.6px)'},
  {at: 0.6, expect: 'calc(100% + 19.2px)'},
  {at: 1, expect: 'calc(100% + 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>
chromium/third_party/blink/web_tests/external/wpt/css/css-text-decor/animations/text-underline-offset-interpolation.html
