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| 1 <!doctype html> | 1 <!doctype html> |
| 2 <title>Verifies there are no spurious repaints for audio in a video tag.</title> | 2 <title>Verifies there are no spurious repaints for audio in a video tag.</title> |
| 3 <script src="../../resources/testharness.js"></script> | 3 <script src="../../resources/testharness.js"></script> |
| 4 <script src="../../resources/testharnessreport.js"></script> | 4 <script src="../../resources/testharnessreport.js"></script> |
| 5 <video></video> | 5 <video></video> |
| 6 <script> | 6 <script> |
| 7 async_test(function(t) { | 7 async_test(function(t) { |
| 8 var video = document.querySelector('video'); | 8 var video = document.querySelector('video'); |
| 9 | 9 |
| 10 video.addEventListener('canplaythrough', t.step_func(function() { | 10 video.addEventListener('canplaythrough', t.step_func(function() { |
| 11 internals.startTrackingRepaints(document); | 11 internals.startTrackingRepaints(document); |
| 12 video.play(); | 12 video.play(); |
| 13 }), false); | 13 }), false); |
| 14 | 14 |
| 15 video.addEventListener('ended', t.step_func(function() { | 15 video.addEventListener('ended', t.step_func(function() { |
| 16 var layerTree = internals.layerTreeAsText( | 16 var layerTree = internals.layerTreeAsText( |
| 17 document, internals.LAYER_TREE_INCLUDES_PAINT_INVALIDATIONS) | 17 document, internals.LAYER_TREE_INCLUDES_PAINT_INVALIDATIONS) |
| 18 var paintInvalidations = JSON.parse(layerTree)["layers"][0].paintInvalid
ations; | 18 var paintInvalidations = JSON.parse(layerTree)["layers"][0].paintInvalid
ations; |
| 19 internals.stopTrackingRepaints(document); | 19 internals.stopTrackingRepaints(document); |
| 20 | 20 |
| 21 // Manually verify the number of repaints instead of using a repaint | 21 // Manually verify the number of repaints instead of using a repaint |
| 22 // test since media playback is asynchronous by nature and its threading | 22 // test since media playback is asynchronous by nature and its threading |
| 23 // will cause a variance in the number of repaints on test bots. | 23 // will cause a variance in the number of repaints on test bots. |
| 24 var minExpected = 3, maxExpected = 4, expectedRect = [8, 8, 300, 150]; | 24 var minExpected = 5, maxExpected = 8, expectedRect = [8, 8, 300, 150]; |
| 25 | 25 |
| 26 t.add_cleanup(function() { | 26 t.add_cleanup(function() { |
| 27 if (t.status == t.PASS) | 27 if (t.status == t.PASS) |
| 28 return; | 28 return; |
| 29 console.log('FAIL! An unexpected number of repaints occurred;' + | 29 console.log('FAIL! An unexpected number of repaints occurred;' + |
| 30 ' expected ' + minExpected + ' to ' + maxExpected + | 30 ' expected ' + minExpected + ' to ' + maxExpected + |
| 31 ' with rects of [' + expectedRect.join(', ') + '].' + | 31 ' with rects of [' + expectedRect.join(', ') + '].' + |
| 32 ' Actual layer tree: ' + layerTree); | 32 ' Actual layer tree: ' + layerTree); |
| 33 }); | 33 }); |
| 34 | 34 |
| 35 assert_between_inclusive(paintInvalidations.length, minExpected, maxExpe
cted); | 35 assert_between_inclusive(paintInvalidations.length, minExpected, maxExpe
cted); |
| 36 for (var i = 0; i < paintInvalidations.length; ++i) | 36 for (var i = 0; i < paintInvalidations.length; ++i) |
| 37 assert_array_equals(paintInvalidations[i].rect, expectedRect); | 37 assert_array_equals(paintInvalidations[i].rect, expectedRect); |
| 38 | 38 |
| 39 t.done(); | 39 t.done(); |
| 40 }), false); | 40 }), false); |
| 41 | 41 |
| 42 video.src = '../../media/content/silence.wav'; | 42 video.src = '../../media/content/silence.wav'; |
| 43 }); | 43 }); |
| 44 </script> | 44 </script> |
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Chromium Code Reviews
Issue 2754533002:
Make layout test media-audio-no-spurious-repaints.html pass (Closed)
