| <!doctype html> |
| <title>TextTrackList.onaddtrack</title> |
| <script src=/resources/testharness.js></script> |
| <script src=/resources/testharnessreport.js></script> |
| <div id=log></div> |
| <script> |
| setup(function(){ |
| window.tracks = document.createElement('video').textTracks; |
| window.ev = new Event('addtrack'); |
| window.ran = false; |
| window.cb = function() { ran = true; }; |
| }); |
| test(function(){ |
| assert_equals(tracks.onaddtrack, null); |
| tracks.onaddtrack = cb; |
| assert_equals(tracks.onaddtrack, cb); |
| tracks.dispatchEvent(ev); |
| assert_true(ran); |
| tracks.onaddtrack = null; |
| ran = false; |
| tracks.dispatchEvent(ev); |
| assert_false(ran); |
| }); |
| test(function(){ |
| tracks.addEventListener('addtrack', cb, false); |
| tracks.dispatchEvent(ev); |
| assert_true(ran); |
| tracks.removeEventListener('addtrack', cb, false); |
| ran = false; |
| tracks.dispatchEvent(ev); |
| assert_false(ran); |
| }, 'TextTrackList.addEventListener/removeEventListener'); |
| </script> |
