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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/audio-testing.js"></script> | |
7 </head> | |
8 | |
9 <body> | |
10 <script> | |
11 description('Test event handler callback from OfflineAudioContext.resume() and OfflineAudioContext.suspend().'); | |
12 window.jsTestIsAsync = true; | |
13 | |
14 var context; | |
15 var renderQuantum = 128; | |
16 | |
17 // The sample rate is multiple of the rendering quantum, so suspension | |
18 // times in the test fall in to the render quantum boundary. Although | |
19 // this is not necessary, it is easier to understand the test. | |
20 var sampleRate = renderQuantum * 100; | |
21 | |
22 var renderDuration = 2; | |
23 var scheduledSuspendTime = 0; | |
24 | |
25 // With the sample rate setting above, this ensures suspension time fall | |
26 // in to the render quantum boundary. | |
Raymond Toy
2015/10/21 18:22:45
"fall in to the" -> "will fall on the"
hongchan
2015/10/22 18:23:48
Done.
| |
27 var suspendInterval = 0.25; | |
28 | |
29 function runTest() { | |
30 context = new OfflineAudioContext(1, sampleRate * renderDuration, sample Rate); | |
31 | |
32 context.onstatechange = function () { | |
33 if (context.state === 'suspended' && context.currentTime === scheduled SuspendTime) { | |
34 | |
35 testPassed('onstatechange event handler: context is suspended at ' + | |
36 scheduledSuspendTime + ' second(s).'); | |
37 | |
38 scheduledSuspendTime = context.currentTime + suspendInterval; | |
39 | |
40 // Scheduling a suspend before the render duration should pass. | |
41 if (scheduledSuspendTime < renderDuration) { | |
42 context.suspend(scheduledSuspendTime); | |
43 testPassed('A new suspend has been scheduled at ' + | |
44 scheduledSuspendTime + ' second(s).'); | |
45 } | |
46 | |
47 // Scheduling a suspend exactly at the render duration should be | |
48 // rejected. | |
49 if (scheduledSuspendTime === renderDuration) { | |
50 Should('Scheduling at ' + renderDuration + ' seconds', | |
51 context.suspend(scheduledSuspendTime)).beRejected(); | |
52 } | |
53 | |
54 context.resume(); | |
55 } | |
56 }; | |
57 | |
58 // This test is for verifying all the event handlers on OAC and that is | |
59 // why 'oncomplete' is used here. | |
60 context.oncomplete = function () { | |
61 Should('oncomplete event handler: context.state', context.state).beEqu alTo('closed'); | |
62 finishJSTest(); | |
63 }; | |
64 | |
65 // Schedule the first suspension. | |
66 context.suspend(scheduledSuspendTime); | |
67 testPassed('A new suspend has been scheduled at ' + scheduledSuspendTime + ' second(s).'); | |
68 | |
69 context.startRendering(); | |
70 } | |
71 | |
72 runTest(); | |
73 successfullyParsed = true; | |
74 </script> | |
75 | |
76 </body> | |
77 </html> | |
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