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| 1 <!DOCTYPE html> |
| 2 <meta charset=utf-8> |
| 3 <title>Animation.play()</title> |
| 4 <link rel="help" href="https://w3c.github.io/web-animations/#dom-animation-play"
> |
| 5 <script src="../../../../resources/testharness.js"></script> |
| 6 <script src="../../../../resources/testharnessreport.js"></script> |
| 7 <script src="../testcommon.js"></script> |
| 8 <link rel="stylesheet" href="../../../../resources/testharness.css"> |
| 9 <body> |
| 10 <div id="log"></div> |
| 11 <script> |
| 12 'use strict'; |
| 13 |
| 14 promise_test(function(t) { |
| 15 var div = createDiv(t); |
| 16 var animation = div.animate({ transform: ['none', 'translate(10px)']}, |
| 17 { duration : 100 * MS_PER_SEC, |
| 18 iterations : Infinity}); |
| 19 return animation.ready.then(function() { |
| 20 // Seek to a time outside the active range so that play() will have to |
| 21 // snap back to the start |
| 22 animation.currentTime = -5 * MS_PER_SEC; |
| 23 animation.playbackRate = -1; |
| 24 |
| 25 assert_throws('InvalidStateError', |
| 26 function () { animation.play(); }, |
| 27 'Expected InvalidStateError exception on calling play() ' + |
| 28 'with a negative playbackRate and infinite-duration ' + |
| 29 'animation'); |
| 30 }); |
| 31 }, 'play() throws when seeking an infinite-duration animation played in ' + |
| 32 'reverse'); |
| 33 |
| 34 </script> |
| 35 </body> |
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