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| 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/audit-util.js"></script> | |
| 7 <script src="resources/audio-testing.js"></script> | |
| 8 </head> | |
| 9 | |
| 10 <body> | |
| 11 <script> | |
| 12 description('Test OfflineAudioContext.resume() and OfflineAudioContext.sus
pend() with the timed sequence.'); | |
| 13 window.jsTestIsAsync = true; | |
| 14 | |
| 15 var context; | |
| 16 | |
| 17 // The sample rate is multiple of the rendering quantum, so suspension | |
| 18 // times fall in to the render quantum boundary. | |
| 19 var renderQuantum = 128; | |
| 20 | |
| 21 var sampleRate = renderQuantum * 100; | |
| 22 var renderDuration = 2; | |
| 23 | |
| 24 // These numbers are in an arbitrary order, but not randomly generated in | |
| 25 // runtime to avoid moving pieces. However, it is safe to arrange them | |
| 26 // in a random order in runtime. | |
| 27 // | |
| 28 // Also these numbers are multiple of 0.25, so they are supposed to fall | |
| 29 // in the render quantum boundary for easier and more intuitive | |
| 30 // verification. | |
| 31 var suspendTimes = [0.25, 0.75, 1.0, 0.5, 1.25, 0.0, 1.75]; | |
| 32 | |
| 33 // Sorted ascending suspend time is our expected result. | |
| 34 var expectedSuspendTimes = suspendTimes.slice(0).sort(function (a, b) { | |
| 35 return a - b; | |
| 36 }); | |
| 37 | |
| 38 var actualSuspendTimes = []; | |
| 39 | |
| 40 context = new OfflineAudioContext(1, sampleRate * renderDuration, sampleRa
te); | |
| 41 | |
| 42 for (var i = 0; i < suspendTimes.length; i++) { | |
| 43 | |
| 44 // Schedule suspends in a random time order, but the actual suspend | |
| 45 // must happen in ascending time order. | |
| 46 scheduleSuspend(i, suspendTimes[i]); | |
| 47 | |
| 48 } | |
| 49 | |
| 50 function scheduleSuspend(index, suspendTime) { | |
| 51 testPassed('Scheduling suspend #' + index + ' at ' + suspendTime + ' sec
ond(s).'); | |
| 52 context.suspend(suspendTime).then(function () { | |
| 53 actualSuspendTimes.push(suspendTime); | |
| 54 context.resume(); | |
| 55 }) | |
| 56 } | |
| 57 | |
| 58 function verifyResult() { | |
| 59 | |
| 60 for (var i = 0; i < actualSuspendTimes.length; i++) { | |
| 61 var scheduledOrder = suspendTimes.indexOf(actualSuspendTimes[i]); | |
| 62 var expectedOrder = expectedSuspendTimes.indexOf(actualSuspendTimes[i]
); | |
| 63 | |
| 64 if (i === expectedOrder) { | |
| 65 testPassed('The resolution order of suspend #' + scheduledOrder + | |
| 66 ' is ' + i + ' at ' + suspendTimes[scheduledOrder].toFixed(2) + | |
| 67 ' second(s).'); | |
| 68 } | |
| 69 } | |
| 70 } | |
| 71 | |
| 72 context.startRendering().then(verifyResult).then(finishJSTest); | |
| 73 | |
| 74 successfullyParsed = true; | |
| 75 </script> | |
| 76 | |
| 77 </body> | |
| 78 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
