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34 lines
1.2 KiB
HTML
34 lines
1.2 KiB
HTML
<!DOCTYPE html>
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<meta charset=utf-8>
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<title>Animation.play()</title>
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<link rel="help" href="https://w3c.github.io/web-animations/#dom-animation-play">
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<script src="/resources/testharness.js"></script>
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<script src="/resources/testharnessreport.js"></script>
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<script src="../../testcommon.js"></script>
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<body>
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<div id="log"></div>
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<script>
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'use strict';
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promise_test(function(t) {
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var div = createDiv(t);
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var animation = div.animate({ transform: ['none', 'translate(10px)']},
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{ duration : 100 * MS_PER_SEC,
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iterations : Infinity});
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return animation.ready.then(function() {
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// Seek to a time outside the active range so that play() will have to
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// snap back to the start
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animation.currentTime = -5 * MS_PER_SEC;
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animation.playbackRate = -1;
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assert_throws('InvalidStateError',
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function () { animation.play(); },
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'Expected InvalidStateError exception on calling play() ' +
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'with a negative playbackRate and infinite-duration ' +
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'animation');
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});
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}, 'play() throws when seeking an infinite-duration animation played in ' +
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'reverse');
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</script>
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</body>
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