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| (Empty) | |
| 1 <!doctype html> |
| 2 <html> |
| 3 <head> |
| 4 <script src="../resources/js-test.js"></script> |
| 5 <script src="resources/compatibility.js"></script> |
| 6 <script src="resources/audio-testing.js"></script> |
| 7 </head> |
| 8 |
| 9 <body> |
| 10 <script> |
| 11 description('Basic test for OfflineAudioContext.suspend() and OfflineAudio
Context.resume().'); |
| 12 window.jsTestIsAsync = true; |
| 13 |
| 14 var sampleRate = 44100; |
| 15 var renderDuration = 1; |
| 16 var renderQuantum = 128; |
| 17 |
| 18 var audit = Audit.createTaskRunner(); |
| 19 |
| 20 // Task: Calling suspend with no argument or negative time should |
| 21 // reject the promise. |
| 22 audit.defineTask('suspend-invalid-argument', function (done) { |
| 23 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa
mpleRate); |
| 24 |
| 25 Should('context.suspend()', context.suspend()).beRejected(); |
| 26 Should('context.suspend(-1.0)', context.suspend(-1.0)).beRejected().then
(done); |
| 27 }); |
| 28 |
| 29 // Task: Scheduling a suspend in the past should be rejected. |
| 30 audit.defineTask('suspend-in-the-past', function (done) { |
| 31 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa
mpleRate); |
| 32 |
| 33 context.suspend(0.5).then(function () { |
| 34 Should('Scheduling a suspend in the past', |
| 35 context.suspend(context.currentTime - 0.1)).beRejected(); |
| 36 context.resume(); |
| 37 }); |
| 38 |
| 39 context.startRendering().then(done); |
| 40 }); |
| 41 |
| 42 // Task: Calling multiple suspends at the same rendering quantum should |
| 43 // reject the promise. |
| 44 audit.defineTask('identical-suspend-time', function (done) { |
| 45 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa
mpleRate); |
| 46 |
| 47 // |suspendTime1| and |suspendTime2| are identical when quantized to |
| 48 // the render quantum size. |
| 49 var suspendTime1 = renderQuantum / sampleRate; |
| 50 var suspendTime2 = (renderQuantum + renderQuantum * 0.5) / sampleRate; |
| 51 |
| 52 context.suspend(suspendTime1); |
| 53 |
| 54 Should('Calling multiple suspends at the same rendering quantum', |
| 55 context.suspend(suspendTime2)).beRejected().then(done); |
| 56 }); |
| 57 |
| 58 // Task: Resuming the context before the actual suspension happens. |
| 59 audit.defineTask('resume-before-suspend', function (done) { |
| 60 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa
mpleRate); |
| 61 |
| 62 // A suspend is scheduled at the half. |
| 63 context.suspend(renderDuration * 0.5).then(done); |
| 64 |
| 65 // We have to start rendering to get the time running. |
| 66 context.startRendering(); |
| 67 |
| 68 // Then call resume() immediately after the rendering starts. This |
| 69 // resume() will be performed before the actual suspension happens. |
| 70 Should('Resuming before suspend', context.resume()).beRejected(); |
| 71 }); |
| 72 |
| 73 // Task: Calling resume on non-suspended context should reject the promise
. |
| 74 audit.defineTask('resume-without-suspend', function (done) { |
| 75 var context = new OfflineAudioContext(1, sampleRate * renderDuration, sa
mpleRate); |
| 76 |
| 77 Should('Calling resume on non-suspended context', context.resume()) |
| 78 .beRejected().then(done); |
| 79 }); |
| 80 |
| 81 audit.defineTask('finish', function (done) { |
| 82 finishJSTest(); |
| 83 done(); |
| 84 }); |
| 85 |
| 86 audit.runTasks( |
| 87 'suspend-invalid-argument', |
| 88 'suspend-in-the-past', |
| 89 'identical-suspend-time', |
| 90 'resume-before-suspend', |
| 91 'resume-without-suspend', |
| 92 'finish' |
| 93 ); |
| 94 |
| 95 successfullyParsed = true; |
| 96 </script> |
| 97 |
| 98 </body> |
| 99 </html> |
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Chromium Code Reviews
Issue 1140723003:
Implement suspend() and resume() for OfflineAudioContext (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master