| <!DOCTYPE html> |
| <title>Test playbackRate and defaultPlaybackRate.</title> |
| <script src="../resources/testharness.js"></script> |
| <script src="../resources/testharnessreport.js"></script> |
| <script src="media-file.js"></script> |
| <video></video> |
| <script> |
| // "playbackRate" should not change when play() is called. |
| // "playbackRate" and "defaultPlaybackRate" should always return the last value set. |
| async_test(function(t) { |
| var video = document.querySelector("video"); |
| |
| video.oncanplaythrough = t.step_func(function() { |
| video.oncanplaythrough = null; |
| // checking defaults. |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 1); |
| |
| // setting defaultPlaybackRate. |
| video.defaultPlaybackRate = 2; |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 2); |
| }); |
| |
| video.onended = t.step_func_done(function() { |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 2); |
| |
| // Test extreme playback rates. |
| |
| video.defaultPlaybackRate = Number.MIN_VALUE; |
| assert_equals(video.defaultPlaybackRate, Number.MIN_VALUE); |
| |
| video.defaultPlaybackRate = Number.MAX_VALUE; |
| assert_equals(video.defaultPlaybackRate, Number.MAX_VALUE); |
| |
| assert_throws("NotSupportedError", function() { video.playbackRate = Number.MIN_VALUE; }); |
| assert_throws("NotSupportedError", function() { video.playbackRate = Number.MAX_VALUE; }); |
| |
| // Test non-finite playback rates. |
| assert_throws(new TypeError, function() { video.defaultPlaybackRate = -Infinity; }); |
| assert_throws(new TypeError, function() { video.defaultPlaybackRate = Infinity; }); |
| assert_throws(new TypeError, function() { video.defaultPlaybackRate = NaN; }); |
| |
| assert_throws(new TypeError, function() { video.playbackRate = -Infinity; }); |
| assert_throws(new TypeError, function() { video.playbackRate = Infinity; }); |
| assert_throws(new TypeError, function() { video.playbackRate = NaN; }); |
| }); |
| |
| var rateChangeCount = 0; |
| video.onratechange = t.step_func(function() { |
| // checking rate after event. |
| switch (++rateChangeCount) { |
| case 1: |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 2); |
| |
| // setting playbackRate. |
| video.playbackRate = 2; |
| assert_equals(video.playbackRate, 2); |
| assert_equals(video.defaultPlaybackRate, 2); |
| break; |
| case 2: |
| assert_equals(video.playbackRate, 2); |
| assert_equals(video.defaultPlaybackRate, 2); |
| |
| // beginning playback. |
| video.currentTime = video.duration - 0.2; |
| video.playbackRate = 1; |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 2); |
| video.play(); |
| break; |
| case 3: |
| assert_equals(video.playbackRate, 1); |
| assert_equals(video.defaultPlaybackRate, 2); |
| break; |
| } |
| }); |
| |
| video.src = findMediaFile("video", "content/test"); |
| }); |
| </script> |
