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<html>
<title>WorkletAnimation should continue to be in effect forever, even if its duration is passed</title>
<link rel="help" href="https://drafts.css-houdini.org/css-animationworklet/">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/web-animations/testcommon.js"></script>
<script src="common.js"></script>
<div id="box"></div>
<script>
promise_test(async t => {
await registerConstantLocalTimeAnimator(0.5);
const box = document.getElementById('box');
const effect = new KeyframeEffect(box,
[
{transform: 'translateY(0px)' },
{transform: 'translateY(200px)' }
], {
duration: 1,
}
);
const animation = new WorkletAnimation('constant_time', effect);
animation.play();
let expected_transform = "matrix(1, 0, 0, 1, 0, 100)";
await waitForAnimationFrameWithCondition(_ => {
return getComputedStyle(box).transform == expected_transform;
});
// The animation is specified to last for 1 millisecond
await new Promise(resolve => step_timeout(resolve, 500));
assert_equals(getComputedStyle(document.getElementById("box")).transform, expected_transform);
}, "WorkletAnimation should continue to be in effect forever, even if its duration is passed");
</script>
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