commit c39ee425534320960e795f6b125967448ec9a079
parent 1eebaa043bbf324327092641e2a4cdb68f6d0836
Author: punithbnayak <punithbnayak@chromium.org>
Date: Fri, 14 Nov 2025 10:22:48 +0000
Bug 1999767 [wpt PR 56003] - [webaudio-testharness] Migrate audioworkletnode-channel-count.https.html, a=testonly
Automatic update from web-platform-tests
[webaudio-testharness] Migrate audioworkletnode-channel-count.https.html
Convert audioworkletnode-channel-count.https.html from the legacy
audit.js runner to pure testharness.js
Change-Id: I2e24aff13b3594fbbde8b78cd4a3027afa755c32
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7132538
Commit-Queue: Punith Nayak <punithbnayak@chromium.org>
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1543821}
--
wpt-commits: b70ea7252a52acfedb81ae66e6f9327ce875211c
wpt-pr: 56003
Diffstat:
1 file changed, 51 insertions(+), 49 deletions(-)
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworkletnode-channel-count.https.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworkletnode-channel-count.https.html
@@ -6,72 +6,74 @@
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
- <script src="/webaudio/resources/audit.js"></script>
<script src="/webaudio/resources/audit-util.js"></script>
</head>
<body>
- <script id="layout-test-code">
- let audit = Audit.createTaskRunner();
-
+ <script>
// Arbitrary numbers used to align the test with render quantum boundary.
- let sampleRate = RENDER_QUANTUM_FRAMES * 100;
- let renderLength = RENDER_QUANTUM_FRAMES * 2;
- let context;
-
- let filePath = 'processors/gain-processor.js';
+ const sampleRate = RENDER_QUANTUM_FRAMES * 100;
+ const renderLength = RENDER_QUANTUM_FRAMES * 2;
+ const filePath = 'processors/gain-processor.js';
- let testChannelValues = [1, 2, 3];
+ const testChannelValues = [1, 2, 3];
- // Creates a 3-channel buffer and play with BufferSourceNode. The source
- // goes through a bypass AudioWorkletNode (gain value of 1).
- audit.define('setup-buffer-and-worklet', (task, should) => {
- context = new OfflineAudioContext(testChannelValues.length,
- renderLength,
- sampleRate);
+ // Creates a 3-channel source and play with ConstantSourceNode.
+ // The source goes through a bypass AudioWorkletNode (gain value of 1).
+ // Verifies if the rendered buffer has all zero for the first half
+ // (before 128 samples) and the expected values for the second half.
+ promise_test(async () => {
+ const context = new OfflineAudioContext(
+ testChannelValues.length,
+ renderLength,
+ sampleRate);
// Explicitly sets the destination channelCountMode and
// channelInterpretation to make sure the result does no mixing.
- context.channeCountMode = 'explicit';
+ context.channelCountMode = 'explicit';
context.channelInterpretation = 'discrete';
- context.audioWorklet.addModule(filePath).then(() => {
- let testBuffer = createConstantBuffer(context, 1, testChannelValues);
- let sourceNode = new AudioBufferSourceNode(context);
- let gainWorkletNode = new AudioWorkletNode(context, 'gain');
+ await context.audioWorklet.addModule(filePath);
- gainWorkletNode.parameters.get('gain').value = 1.0;
- sourceNode.connect(gainWorkletNode).connect(context.destination);
+ const gainWorkletNode = new AudioWorkletNode(context, 'gain');
+ gainWorkletNode.parameters.get('gain').value = 1.0;
- // Suspend the context at 128 sample frames and play the source with
- // the assigned buffer.
- context.suspend(RENDER_QUANTUM_FRAMES/sampleRate).then(() => {
- sourceNode.buffer = testBuffer;
- sourceNode.loop = true;
- sourceNode.start();
- context.resume();
- });
- task.done();
+ // Create a ChannelMergerNode to combine multiple ConstantSourceNodes
+ const merger = new ChannelMergerNode(
+ context, {numberOfInputs: testChannelValues.length});
+ merger.connect(gainWorkletNode);
+ gainWorkletNode.connect(context.destination);
+
+ // Create a ConstantSourceNode for each channel with its
+ // corresponding value
+ const constantSources = testChannelValues.map((value, index) => {
+ const constantSource =
+ new ConstantSourceNode(context, {offset: value});
+ constantSource.connect(merger, 0, index);
+ return constantSource;
});
- });
- // Verifies if the rendered buffer has all zero for the first half (before
- // 128 samples) and the expected values for the second half.
- audit.define('verify-rendered-buffer', (task, should) => {
- context.startRendering().then(renderedBuffer => {
- testChannelValues.forEach((value, index) => {
- let channelData = renderedBuffer.getChannelData(index);
- should(channelData.subarray(0, RENDER_QUANTUM_FRAMES),
- 'First half of Channel #' + index)
- .beConstantValueOf(0);
- should(channelData.subarray(RENDER_QUANTUM_FRAMES, renderLength),
- 'Second half of Channel #' + index)
- .beConstantValueOf(value);
- });
- task.done();
- });
+ // Suspend the context at 128 sample frames and start the sources.
+ context.suspend(RENDER_QUANTUM_FRAMES/sampleRate).then(() => {
+ constantSources.forEach(source => source.start());
+ context.resume();
});
- audit.run();
+ const renderedBuffer = await context.startRendering();
+
+ testChannelValues.forEach((value, index) => {
+ const channelData = renderedBuffer.getChannelData(index);
+
+ assert_constant_value(
+ channelData.subarray(0, RENDER_QUANTUM_FRAMES),
+ 0,
+ 'First half of Channel #' + index);
+
+ assert_constant_value(
+ channelData.subarray(RENDER_QUANTUM_FRAMES, renderLength),
+ value,
+ 'Second half of Channel #' + index);
+ });
+ }, 'setup-buffer-and-worklet-verify-rendered-buffer');
</script>
</body>
</html>
