| <!doctype html> |
| <html> |
| <head> |
| <title>Test AudioContext.suspend() and AudioContext.resume()</title> |
| <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 suspend/resume for an (offline) AudioContext"); |
| window.jsTestIsAsync = true; |
| |
| var offlineContext; |
| var osc; |
| var p1; |
| var p2; |
| var p3; |
| |
| var sampleRate = 44100; |
| var durationInSeconds = 1; |
| |
| var audit = Audit.createTaskRunner(); |
| |
| // Convenience function that returns a function that calls the |passFailFunc| |
| // with the given |message|. The |passFailFunc| should be either |testPassed| |
| // or |testFailed|. |
| function handlePromise(passFailFunc, message) { |
| return function () { |
| passFailFunc(message); |
| }; |
| } |
| |
| // Task: test suspend(). |
| audit.defineTask('test-suspend', function (done) { |
| |
| // Test suspend/resume. Ideally this test is best with a online |
| // AudioContext, but content shell doesn't really have a working online |
| // AudioContext. Hence, use an OfflineAudioContext. Not all possible |
| // scenarios can be easily checked with an offline context instead of an |
| // online context. |
| |
| // Create an audio context with an oscillator. |
| shouldNotThrow("offlineContext = new OfflineAudioContext(1, durationInSeconds * sampleRate, sampleRate)"); |
| osc = offlineContext.createOscillator(); |
| osc.connect(offlineContext.destination); |
| |
| // Verify the state. |
| shouldBeEqualToString("offlineContext.state", "suspended"); |
| |
| // Multiple calls to suspend() should not be a problem. But we can't test |
| // that on an offline context. Thus, check that suspend() on an |
| // OfflineAudioContext rejects the promise. |
| shouldNotThrow("p1 = offlineContext.suspend()"); |
| shouldBeType("p1", "Promise"); |
| p1.then( |
| handlePromise(testFailed, "offlineContext.suspend() should have been rejected for an offline context"), |
| function (e) { |
| if (e.name === "InvalidAccessError") { |
| testPassed( |
| "offlineContext.suspend() was correctly rejected: " + e); |
| } else { |
| testFailed( |
| "offlineContext.suspend() was correctly rejected but expected InvalidAccessError, not: " + e); |
| } |
| } |
| ).then(done); |
| }); |
| |
| |
| // Task: test resume(). |
| audit.defineTask('test-resume', function (done) { |
| |
| // Multiple calls to resume should not be a problem. But we can't test |
| // that on an offline context. Thus, check that resume() on an |
| // OfflineAudioContext rejects the promise. |
| shouldNotThrow("p2 = offlineContext.resume()"); |
| shouldBeType("p2", "Promise"); |
| |
| // Resume doesn't actually resume an offline context |
| shouldBeEqualToString("offlineContext.state", "suspended"); |
| p2.then( |
| handlePromise(testFailed, "offlineContext.resume() should have been rejected for an offline context"), |
| function (e) { |
| if (e.name === "InvalidAccessError") { |
| testPassed( |
| "offlineContext.resume() was correctly rejected: " + e); |
| } else { |
| testFailed( |
| "offlineContext.resume() was correctly rejected but expected InvalidAccessError, not: " + e); |
| } |
| } |
| ).then(done); |
| }); |
| |
| // Task: test the state after context closed. |
| audit.defineTask('test-after-close', function (done) { |
| |
| // Render the offline context. |
| osc.start(); |
| |
| // Test suspend/resume in tested promise pattern. We don't care about the |
| // actual result of the offline rendering. |
| shouldNotThrow("p3 = offlineContext.startRendering()"); |
| p3.then(function () { |
| shouldBeEqualToString("offlineContext.state", "closed"); |
| |
| // suspend() should be rejected on a closed context. |
| offlineContext.suspend().then( |
| handlePromise(testFailed, "offlineContext.suspend() on a closed context not rejected"), |
| function (e) { |
| if (e.name === "InvalidAccessError") { |
| testPassed("offlineContext.suspend() on a closed context rejected: " + e); |
| } else { |
| testFailed("offlineContext.suspend() on a closed context rejected but expected InvalidAccessError, not: " + e); |
| } |
| } |
| ).then(function () { |
| // resume() should be rejected on closed context. |
| offlineContext.resume().then( |
| handlePromise(testFailed, "offlineContext.resume() on a closed context not rejected"), |
| function (e) { |
| if (e.name === "InvalidAccessError") { |
| testPassed("offlineContext.resume() on a closed context rejected: " + e); |
| } else { |
| testFailed("offlineContext.resume() on a closed context rejected but expected InvalidAccessError, not: " + e); |
| } |
| } |
| ).then(done); |
| }); |
| |
| }); |
| }); |
| |
| audit.defineTask('finish-test', function (done) { |
| done(); |
| finishJSTest(); |
| }); |
| |
| audit.runTasks( |
| 'test-suspend', |
| 'test-resume', |
| 'test-after-close', |
| 'finish-test' |
| ); |
| |
| successfullyParsed = true; |
| </script> |
| </body> |
| </html> |
