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Unified Diff: third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html

Issue 2581463002: Refactor WebAudio test directory (Closed)
Patch Set: Use correct path for wav result files Created 4 years ago
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Index: third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html
diff --git a/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html b/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html
deleted file mode 100644
index e631e258ddc9ebb79d82c3f83d6ca37c9159252b..0000000000000000000000000000000000000000
--- a/third_party/WebKit/LayoutTests/webaudio/audiobuffersource-late-start.html
+++ /dev/null
@@ -1,92 +0,0 @@
-<!DOCTYPE html>
-<html>
-
-<head>
- <script src="../resources/js-test.js"></script>
- <script src="resources/compatibility.js"></script>
- <script src="resources/audit-util.js"></script>
- <script src="resources/audio-testing.js"></script>
-</head>
-
-<body>
- <script>
- description('Test the late call of start(0) of BufferSource.');
- window.jsTestIsAsync = true;
-
- var renderQuantum = 128;
-
- var sampleRate = 44100;
- var renderDuration = 0.25;
- var startTime = 0.5 * renderDuration;
-
- var audit = Audit.createTaskRunner();
-
- // Calculate the index for actual start time.
- function getStartIndex(time) {
- var startIndex = time * sampleRate;
- return startIndex -= (startIndex) % renderQuantum;
- }
-
- // Get the index of value change.
- function getValueChangeIndex(array, targetValue) {
- return array.findIndex(function (element, index) {
- if (element === targetValue)
- return true;
- });
- }
-
- audit.defineTask('test-late-start', function (done) {
- var context = new OfflineAudioContext(1, renderDuration * sampleRate, sampleRate);
- var dcOffsetbuffer = createConstantBuffer(context, 1, 1.0);
- var source = context.createBufferSource();
- source.buffer = dcOffsetbuffer;
- source.loop = true;
- source.connect(context.destination);
-
- // Schedule source.start(0) at 0.01 second. The specified timing of
- // start() call is already passed in terms of the context time. So the
- // argument |0| will be clamped to the current context time.
- //
- // With the sample rate of 44100, 0.01 second is 441 samples. Rounding
- // it down to the render quantum gives 384 samples. This is clearly larger
- // than a single render quantum.
- //
- // See issue: crbug.com/462167
- context.suspend(startTime).then(function () {
- source.start(0);
- context.resume();
- });
-
- // Start rendering and verify result: this verifies if 1) the rendered
- // buffer contains at least one non-zero value and 2) the non-zero value is
- // found later than the first output sample.
- context.startRendering().then(function (buffer) {
-
- var channelData = buffer.getChannelData(0);
- var startIndex = getStartIndex(startTime);
- var nonZeroValueIndex = getValueChangeIndex(channelData, 1.0);
-
- Should('The output', channelData).containValues([0, 1]);
- Should('The index of value change', nonZeroValueIndex)
- .beEqualTo(startIndex);
-
- if (nonZeroValueIndex === 0)
- testFailed('The first sample was non-zero value. It should be zero.');
- else
- testPassed('The rendered buffer contains non-zero values after the first sample.');
-
- }).then(done);
- });
-
- audit.defineTask('finish-test', function (done) {
- done();
- finishJSTest();
- });
-
- audit.runTasks();
-
- successfullyParsed = true;
- </script>
-</body>
-
-</html>

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