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| 1 <!DOCTYPE html> |
| 2 <!-- |
| 3 Copyright 2017 The Chromium Authors. All rights reserved. |
| 4 Use of this source code is governed by a BSD-style license that can be |
| 5 found in the LICENSE file. |
| 6 --> |
| 7 |
| 8 <link rel="import" href="/tracing/core/test_utils.html"> |
| 9 <link rel="import" href="/tracing/extras/importer/trace_event_importer.html"> |
| 10 <link rel="import" href="/tracing/metrics/media_metric.html"> |
| 11 <link rel="import" href="/tracing/value/histogram_set.html"> |
| 12 |
| 13 <script> |
| 14 'use strict'; |
| 15 |
| 16 tr.b.unittest.testSuite(function() { |
| 17 function makeModel(events) { |
| 18 return tr.c.TestUtils.newModelWithEvents([events]); |
| 19 } |
| 20 |
| 21 test('mediaMetric_noData', function() { |
| 22 const histograms = new tr.v.HistogramSet(); |
| 23 const events = [ |
| 24 {name: 'a', args: {}, pid: 52, ts: 524, cat: 'foo', tid: 53, ph: 'B'}, |
| 25 {name: 'a', args: {}, pid: 52, ts: 560, cat: 'foo', tid: 53, ph: 'B'} |
| 26 ]; |
| 27 tr.metrics.mediaMetric(histograms, makeModel(events)); |
| 28 assert.lengthOf(histograms, 0); |
| 29 }); |
| 30 |
| 31 test('mediaMetric_videoTimeToPlay', function() { |
| 32 const histograms = new tr.v.HistogramSet(); |
| 33 const events = [ |
| 34 {name: 'WebMediaPlayerImpl::DoLoad', args: {}, |
| 35 pid: 52, ts: 524, cat: 'media', tid: 1, ph: 'X'}, |
| 36 {name: 'VideoRendererImpl::Render', args: {}, |
| 37 pid: 52, ts: 560, cat: 'media', tid: 53, ph: 'X'}, |
| 38 {name: 'VideoRendererImpl::Render', args: {}, |
| 39 pid: 52, ts: 580, cat: 'media', tid: 53, ph: 'X'}, |
| 40 {name: 'thread_name', args: {name: 'CrRendererMain'}, |
| 41 pid: 52, ts: 0, cat: '__metadata', tid: 1, ph: 'M'}, |
| 42 {name: 'thread_name', args: {name: 'Compositor'}, |
| 43 pid: 52, ts: 0, cat: '__metadata', tid: 53, ph: 'M'}, |
| 44 ]; |
| 45 tr.metrics.mediaMetric(histograms, makeModel(events)); |
| 46 |
| 47 assert.isDefined(histograms.getHistogramNamed('time_to_video_play')); |
| 48 const ttpValue = histograms.getHistogramNamed('time_to_video_play'); |
| 49 const ttpStatistics = ttpValue.running; |
| 50 assert.strictEqual(ttpStatistics.count, 1); |
| 51 assert.closeTo(ttpStatistics.mean, 0.036, 1e-5); |
| 52 assert.closeTo(ttpStatistics.max, 0.036, 1e-5); |
| 53 }); |
| 54 |
| 55 test('mediaMetric_audioTimeToPlay', function() { |
| 56 const histograms = new tr.v.HistogramSet(); |
| 57 const events = [ |
| 58 {name: 'thread_name', args: {name: 'CrRendererMain'}, |
| 59 pid: 52, ts: 0, cat: '__metadata', tid: 1, ph: 'M'}, |
| 60 {name: 'thread_name', args: {name: 'AudioOutputDevice'}, |
| 61 pid: 52, ts: 0, cat: '__metadata', tid: 53, ph: 'M'}, |
| 62 {name: 'WebMediaPlayerImpl::DoLoad', args: {}, |
| 63 pid: 52, ts: 1234, cat: 'media', tid: 1, ph: 'X'}, |
| 64 {name: 'AudioRendererImpl::Render', args: {}, |
| 65 pid: 52, ts: 4321, cat: 'media', tid: 53, ph: 'X'}, |
| 66 ]; |
| 67 tr.metrics.mediaMetric(histograms, makeModel(events)); |
| 68 |
| 69 assert.isDefined(histograms.getHistogramNamed('time_to_audio_play')); |
| 70 const ttpValue = histograms.getHistogramNamed('time_to_audio_play'); |
| 71 const ttpStatistics = ttpValue.running; |
| 72 assert.strictEqual(ttpStatistics.count, 1); |
| 73 assert.closeTo(ttpStatistics.mean, 3.087, 1e-5); |
| 74 assert.closeTo(ttpStatistics.max, 3.087, 1e-5); |
| 75 }); |
| 76 }); |
| 77 </script> |
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Chromium Code Reviews
Issue 2996233004:
Port a media metric to TBMv2 (Closed)
