| <!DOCTYPE html> |
| <title>HTMLTrackElement 'src' attribute mutations</title> |
| <script src="/resources/testharness.js"></script> |
| <script src="/resources/testharnessreport.js"></script> |
| <video> |
| <track src="resources/settings.vtt" default> |
| <script> |
| async_test(function(t) { |
| var cues = null; |
| var testTrack = document.querySelector("track"); |
| var stage = 0; |
| function step_onLoad() { |
| switch (stage) { |
| case 0: |
| cues = testTrack.track.cues; |
| assert_equals(testTrack.readyState, HTMLTrackElement.LOADED, "readyState after first loading of the track"); |
| assert_equals(cues.length, 4, "Number of cues after first loading of the track"); |
| assert_equals(cues[cues.length-1].text, 'I said Bear is coming now!!!! Tab separators.', "Last cue content check"); |
| ++stage; |
| testTrack.src = "resources/entities.vtt"; |
| assert_equals(cues.length, 0, "cues list is reset immediately after 'src' mutation with the new URL"); |
| break; |
| case 1: |
| assert_equals(testTrack.readyState, HTMLTrackElement.LOADED), "readyState after loading of the second track"; |
| assert_equals(cues, testTrack.track.cues, ".cues object are the same after 'src' attr mutation"); |
| assert_equals(cues.length, 7, "Number of cues after loading of the second track"); |
| assert_equals(cues[cues.length-1].text, 'This & is parsed to the same as &.', "Last cue content check"); |
| ++stage; |
| testTrack.src = "resources/settings.vtt"; |
| break; |
| case 2: |
| assert_equals(testTrack.readyState, HTMLTrackElement.LOADED, "readyState after after loading of the first track again"); |
| assert_equals(cues[cues.length-1].text, 'I said Bear is coming now!!!! Tab separators.', "Last cue content check"); |
| assert_equals(cues, testTrack.track.cues, ".cues object are the same after 'src' attr mutation"); |
| assert_equals(cues.length, 4, "Number of cues after loading of the first track"); |
| ++stage; |
| testTrack.src = "resources/settings.vtt"; |
| // This should not raise onLoad or onError event, so we'll wait for it for some time |
| t.step_timeout(t.step_func_done(function() { |
| assert_equals(testTrack.readyState, HTMLTrackElement.LOADED, "readyState after changing 'src' to the same value"); |
| assert_equals(cues, testTrack.track.cues, ".cues object are the same after 'src' attr mutation"); |
| assert_equals(cues.length, 4, "Number of cues after changing 'src' to the same value"); |
| }, 100)); |
| break; |
| case 3: |
| assert_unreached("'load' event should not fire, stage = " + stage); |
| break; |
| } |
| } |
| |
| testTrack.onload = t.step_func(step_onLoad); |
| testTrack.onerror = t.unreached_func("'error' event should not fire"); |
| }); |
| </script> |
| </video> |
