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Unified Diff: LayoutTests/webaudio/audiocontext-suspend-resume.html

Issue 625363004: Implement suspend/resume for AudioContext (Closed) Base URL: svn://svn.chromium.org/blink/trunk
Patch Set: Update according to new webaudio spec Created 6 years, 2 months ago
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Index: LayoutTests/webaudio/audiocontext-suspend-resume.html
diff --git a/LayoutTests/webaudio/audiocontext-suspend-resume.html b/LayoutTests/webaudio/audiocontext-suspend-resume.html
new file mode 100644
index 0000000000000000000000000000000000000000..0bc42be34967cc0b994ebe1065b8aef812f40ff9
--- /dev/null
+++ b/LayoutTests/webaudio/audiocontext-suspend-resume.html
@@ -0,0 +1,110 @@
+<!doctype html>
+<html>
+ <head>
+ <title>Test audiocontext suspend/resume</title>
+ <script src="resources/compatibility.js"></script>
+ <script src="resources/audio-testing.js"></script>
+ <script src="../resources/js-test.js"></script>
+ </head>
+
+ <body>
+ <script>
+ description("Test suspend/resume for an (offline) AudioContext");
+
+ var context;
+ var osc;
+ var p1;
+ var p2;
+
+ var sampleRate = 44100;
+ var durationInSeconds = 1;
+
+ // Convenience function that returns a function that calls the |passFailMethod| with the given
+ // |message|. The |passFailMethod| should be either |testPassed| or |testFailed|.
+ function handlePromise(passFailMethod, message) {
+ return function () {
+ passFailMethod(message);
+ };
+ }
+
+ function checkResult (event) {
+ // We don't care about the actual result of the offline rendering.
+ shouldBeEqualToString("context.state", "closed");
+ // suspend() should be rejected on a closed context.
+ context.suspend()
+ .then(handlePromise(
+ testFailed,
+ "context.suspend() on a closed context not rejected"),
+ handlePromise(
+ testPassed,
+ "context.suspend() on a closed context rejected as expected"))
+ .then(function () {
+ // resume() should be rejected on closed context.
+ context.resume()
+ .then(handlePromise(
+ testFailed,
+ "context.resume() on a closed context not rejected"),
+ handlePromise(
+ testPassed,
+ "context.resume() on a closed context rejected as expected"))
+ .then(finishJSTest)
+ });
+ }
+
+ function runOfflineContextTest() {
+ // Render the offline context.
+ osc.start();
+ context.oncomplete = checkResult;
+ context.startRendering();
+ }
+
+ function runResumeTest () {
+ // 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("p1 = context.resume()");
+ shouldBeType(p1, Promise);
+ // Resume doesn't actually resume an offline context
+ shouldBeEqualToString("context.state", "suspended");
+
+ p1.then(handlePromise(
+ testFailed,
+ "context.resume() should have been rejected for an offline context"),
+ handlePromise(
+ testPassed,
+ "context.resume() was correctly rejected for an offline context"))
+ .then(runOfflineContextTest);
+ }
+
+ function runTest() {
+ window.jsTestIsAsync = true;
+ // 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.
+ context = new OfflineAudioContext(1, durationInSeconds * sampleRate, sampleRate);
+ osc = context.createOscillator();
+ osc.connect(context.destination);
+
+ // Verify the state.
+ shouldBeEqualToString("context.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 = context.suspend()");
+ shouldBeType(p1, Promise);
+ p1.then(handlePromise(
+ testFailed,
+ "context.suspend() should have been rejected for an offline context"),
+ handlePromise(
+ testPassed,
+ "context.suspend() was correctly rejected for an offline context"))
+ .then(runResumeTest);
+ }
+
+ runTest();
+ successfullyParsed = true;
+ </script>
+ </body>
+</html>
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