first-interval-in-the-past-dont-contribute.html

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This WPT test may be referenced by the following Test IDs:
- /svg/animations/first-interval-in-the-past-dont-contribute.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Animation element that end before time container begin</title>

<link rel="help" href="https://www.w3.org/TR/2001/REC-smil-animation-20010904/#Timing-BeginEnd-LC-Start">

<script src="/resources/testharness.js"></script>

<script src="/resources/testharnessreport.js"></script>

<script src="/common/rendering-utils.js"></script>

<svg>

  <rect width="100" height="100" fill="green">

    <animate attributeName="fill" values="red;red" begin="-1s" dur="1s" fill="freeze"/>

  </rect>

  <set attributeName="stroke-width" to="10"/>

</svg>

<script>

  promise_test(t => {

    const animationStart = new Promise(resolve => {

      document.querySelector('set').onbegin = resolve;

});

    return animationStart

      .then(() =>

        waitForAtLeastOneFrame())

      .then(() => {

        const rect = document.querySelector('rect');

        assert_equals(getComputedStyle(rect).fill, 'rgb(0, 128, 0)', 'animation does not apply');

});

});

</script>