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 |
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index 0000000000000000000000000000000000000000..fb586ea4ca34ef1d776f6e983b891223de1950fc |
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+++ b/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-eventhandler.html |
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+<!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 |
+ // 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> |