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Issue 1140723003:
Implement suspend() and resume() for OfflineAudioContext (Closed)
Base URL: https://chromium.googlesource.com/chromium/blink.git@master| Index: LayoutTests/webaudio/offlineaudiocontext-suspend-resume-eventhandler.html |
| diff --git a/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-eventhandler.html b/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-eventhandler.html |
| new file mode 100644 |
| index 0000000000000000000000000000000000000000..fb586ea4ca34ef1d776f6e983b891223de1950fc |
| --- /dev/null |
| +++ b/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-eventhandler.html |
| @@ -0,0 +1,67 @@ |
| +<!doctype html> |
| +<html> |
| + <head> |
| + <script src="../resources/js-test.js"></script> |
| + <script src="resources/compatibility.js"></script> |
| + <script src="resources/audio-testing.js"></script> |
| + </head> |
| + |
| + <body> |
| + <script> |
| + description('Test event handler callback from OfflineAudioContext.resume() and OfflineAudioContext.suspend().'); |
| + window.jsTestIsAsync = true; |
| + |
| + var context; |
| + var renderQuantum = 128; |
| + |
| + // The sample rate is multiple of the rendering quantum, so suspension |
| + // times in the test fall in to the render quantum boundary. Although |
| + // this is not necessary, it is easier to understand the test. |
| + var sampleRate = renderQuantum * 100; |
| + |
| + var renderDuration = 2; |
| + var scheduledSuspendTime = 0; |
| + |
| + // With the sample rate setting above, this ensures suspension time fall |
| + // in to the render quantum boundary. |
| + var suspendInterval = 0.25; |
| + |
| + function runTest() { |
| + context = new OfflineAudioContext(1, sampleRate * renderDuration, sampleRate); |
| + |
| + context.onstatechange = function () { |
| + if (context.state === 'suspended') { |
| + Should('context.currentTime', context.currentTime) |
| + .beEqualTo(scheduledSuspendTime); |
| + |
| + scheduledSuspendTime = context.currentTime + suspendInterval; |
| + |
| + // Schedule the next suspension only when |scheduledSuspendTime| is |
| + // less than |renderDuration|. Although suspend() will catch |
| + // the out-of-bound error, but it will reject the promise and |
|
Raymond Toy
2015/07/15 20:59:13
"but it" -> "it"
hongchan
2015/07/15 23:24:22
Done.
|
| + // this test is for the event handler, not the promise. |
| + if (scheduledSuspendTime < renderDuration) |
| + context.suspend(scheduledSuspendTime); |
| + |
| + context.resume(); |
| + } |
| + }; |
| + |
| + // This test is for verifying all the event handlers on OAC and that is |
| + // why 'oncomplete' is used here. |
| + context.oncomplete = function () { |
| + Should('context.state', context.state).beEqualTo('closed'); |
| + finishJSTest(); |
| + }; |
| + |
| + // Initiate the suspension loop. |
| + context.suspend(scheduledSuspendTime); |
| + context.startRendering(); |
| + } |
| + |
| + runTest(); |
| + successfullyParsed = true; |
| + </script> |
| + |
| + </body> |
| +</html> |
