<!DOCTYPE html>
<meta charset="UTF-8">
<title>accent-color interpolation</title>
<link rel="author" title="Joey Arhar" href="mailto:jarhar@chromium.org">
<link rel="help" href="https://drafts.csswg.org/css-ui-4/#widget-accent">

<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/interpolation-testcommon.js"></script>

<style>
.parent {
  accent-color: blue;
}
.target {
  display: inline-block;
  font-size: 60pt;
  accent-color: yellow;
}
.expected {
  margin-right: 15px;
}
</style>

<body contenteditable>
  <template id="target-template">T</template>
</body>

<script>
test_interpolation({
  property: 'accent-color',
  from: neutralKeyframe,
  to: 'green',
}, [
  {at: -0.3, expect: 'rgb(255, 255, 0)'},
  {at: 0, expect: 'rgb(255, 255, 0)'},
  {at: 0.3, expect: 'rgb(179, 217, 0)'},
  {at: 0.6, expect: 'rgb(102, 179, 0)'},
  {at: 1, expect: 'rgb(0, 128, 0)'},
  {at: 1.5, expect: 'rgb(0, 65, 0)'},
]);

test_no_interpolation({
  property: 'accent-color',
  from: 'initial',
  to: 'green',
});

test_no_interpolation({
  property: 'accent-color',
  from: 'auto',
  to: 'green',
});

test_interpolation({
  property: 'accent-color',
  from: 'currentColor',
  to: 'green',
}, [
  {at: -0.3, expect: 'rgb(0, 0, 0)'},
  {at: 0, expect: 'rgb(0, 0, 0)'},
  {at: 0.3, expect: 'rgb(0, 38, 0)'},
  {at: 0.6, expect: 'rgb(0, 77, 0)'},
  {at: 1, expect: 'rgb(0, 128, 0)'},
  {at: 1.5, expect: 'rgb(0, 192, 0)'},
]);

test_interpolation({
  property: 'accent-color',
  from: 'inherit',
  to: 'green',
}, [
  {at: -0.3, expect: 'rgb(0, 0, 255)'},
  {at: 0, expect: 'rgb(0, 0, 255)'},
  {at: 0.3, expect: 'rgb(0, 38, 179)'},
  {at: 0.6, expect: 'rgb(0, 77, 102)'},
  {at: 1, expect: 'rgb(0, 128, 0)'},
  {at: 1.5, expect: 'rgb(0, 192, 0)'},
]);

test_interpolation({
  property: 'accent-color',
  from: 'unset',
  to: 'green',
}, [
  {at: -0.3, expect: 'rgb(0, 0, 255)'},
  {at: 0, expect: 'rgb(0, 0, 255)'},
  {at: 0.3, expect: 'rgb(0, 38, 179)'},
  {at: 0.6, expect: 'rgb(0, 77, 102)'},
  {at: 1, expect: 'rgb(0, 128, 0)'},
  {at: 1.5, expect: 'rgb(0, 192, 0)'},
]);

test_interpolation({
  property: 'accent-color',
  from: 'black',
  to: 'orange',
}, [
  {at: -0.3, expect: 'rgb(0, 0, 0)'},
  {at: 0, expect: 'rgb(0, 0, 0)'},
  {at: 0.3, expect: 'rgb(77, 50, 0)'},
  {at: 0.6, expect: 'rgb(153, 99, 0)'},
  {at: 1, expect: 'rgb(255, 165, 0)'},
  {at: 1.5, expect: 'rgb(255, 248, 0)'},
]);
</script>
