Index: third_party/WebKit/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-sequence.html |
diff --git a/third_party/WebKit/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-sequence.html b/third_party/WebKit/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-sequence.html |
new file mode 100644 |
index 0000000000000000000000000000000000000000..7907dff5b699db441b5f97d60be1dfc3239e8121 |
--- /dev/null |
+++ b/third_party/WebKit/LayoutTests/webaudio/offlineaudiocontext-suspend-resume-sequence.html |
@@ -0,0 +1,74 @@ |
+<!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 OfflineAudioContext.resume() and OfflineAudioContext.suspend() with the timed sequence.'); |
+ window.jsTestIsAsync = true; |
+ |
+ var context; |
+ |
+ // The sample rate is multiple of the rendering quantum, so suspension |
+ // times fall in to the render quantum boundary. |
+ var renderQuantum = 128; |
+ |
+ var sampleRate = renderQuantum * 100; |
+ var renderDuration = 2; |
+ |
+ // These numbers are in an arbitrary order, but not randomly generated in |
+ // runtime to avoid moving pieces. However, it is safe to arrange them |
+ // in a random order in runtime. |
+ // |
+ // Also these numbers are multiple of 0.25, so they are supposed to fall |
+ // in the render quantum boundary for easier and more intuitive |
+ // verification. |
+ var suspendTimes = [0.25, 0.75, 1.0, 0.5, 1.25, 0.0, 1.75]; |
+ |
+ // Sorted ascending suspend time is our expected result. |
+ var expectedSuspendTimes = suspendTimes.slice(0).sort(function (a, b) { |
+ return a - b; |
+ }); |
+ |
+ var actualSuspendTimes = []; |
+ |
+ context = new OfflineAudioContext(1, sampleRate * renderDuration, sampleRate); |
+ |
+ for (var i = 0; i < suspendTimes.length; i++) { |
+ |
+ // Schedule suspends in a random time order, but the actual suspend |
+ // must happen in ascending time order. |
+ scheduleSuspend(suspendTimes[i]); |
+ |
+ } |
+ |
+ function scheduleSuspend(suspendTime) { |
+ context.suspend(suspendTime).then(function () { |
+ actualSuspendTimes.push(suspendTime); |
+ context.resume(); |
+ }) |
+ } |
+ |
+ function verifyResult() { |
+ |
+ for (var i = 0; i < actualSuspendTimes.length; i++) { |
+ var scheduledOrder = suspendTimes.indexOf(actualSuspendTimes[i]) |
+ var expectedOrder = expectedSuspendTimes.indexOf(actualSuspendTimes[i]) |
+ |
+ Should('The actual resolution order of the suspend ' + scheduledOrder + |
+ ' (' + suspendTimes[scheduledOrder].toFixed(2) + ' sec.)', i) |
+ .beEqualTo(expectedOrder); |
+ } |
+ } |
+ |
+ context.startRendering().then(verifyResult).then(finishJSTest); |
+ |
+ successfullyParsed = true; |
+ </script> |
+ |
+ </body> |
+</html> |