commit 74a8e8f51dc68dac42a736637c29d7d4b515210d
parent a4464773324c96c3f08bcbf66a0630f1503d7097
Author: punithbnayak <punithbnayak@chromium.org>
Date: Fri, 31 Oct 2025 08:56:56 +0000
Bug 1996640 [wpt PR 55686] - [webaudio-testharness] Migrate audioworkletnode-output-channel-count.https.html, a=testonly
Automatic update from web-platform-tests
[webaudio-testharness] Migrate audioworkletnode-output-channel-count.https.html
Convert audioworkletnode-output-channel-count.https.html from the legacy
audit.js runner to pure testharness.js
Change-Id: I97a07cd158b17fffb3528e6ad6863e206f2ab3ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7056782
Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Commit-Queue: Punith Nayak <punithbnayak@chromium.org>
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1536844}
--
wpt-commits: 7f0ebb140fe42204ac4dfd91d25f826e662d6aea
wpt-pr: 55686
Diffstat:
1 file changed, 52 insertions(+), 59 deletions(-)
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworkletnode-output-channel-count.https.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audioworklet-interface/audioworkletnode-output-channel-count.https.html
@@ -6,75 +6,68 @@
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
- <script src="/webaudio/resources/audit.js"></script>
</head>
<body>
- <script id="layout-test-code">
- const audit = Audit.createTaskRunner();
- const context = new AudioContext();
+ <script>
+ const processorUrl = 'processors/channel-count-processor.js';
- setup(function () {
- context.audioWorklet.addModule(
- 'processors/channel-count-processor.js').then(() => audit.run());
+ const waitForMessageFromPort = (port) => {
+ return new Promise(resolve => {
+ port.onmessage = e => resolve(e.data);
+ });
+ };
- // Test if the output channe count dynamically changes if the input
- // and output is 1.
- audit.define(
- {label: 'Dynamically change the channel count to if unspecified.'},
- (task, should) => {
- // Use arbitrary parameters for the test.
- const buffer = new AudioBuffer({
- numberOfChannels: 17,
- length: 1,
- sampleRate: context.sampleRate,
- });
- const source = new AudioBufferSourceNode(context);
- source.buffer = buffer;
+ promise_test(async t => {
+ const context = new AudioContext();
- const node = new AudioWorkletNode(context, 'channel-count', {
- numberOfInputs: 1,
- numberOfOutputs: 1,
- });
+ await context.audioWorklet.addModule(processorUrl);
- node.port.onmessage = (message) => {
- const expected = message.data;
- should(expected.outputChannel,
- 'The expected output channel count').beEqualTo(17);
- task.done();
- };
+ {
+ const buffer = new AudioBuffer({
+ numberOfChannels: 17,
+ length: 1,
+ sampleRate: context.sampleRate,
+ });
- // We need to make an actual connection becasue the channel count
- // change happen when the rendering starts. It is to test if the
- // channel count adapts to the upstream node correctly.
- source.connect(node).connect(context.destination);
- source.start();
- });
+ const source = new AudioBufferSourceNode(context, { buffer });
- // Test if outputChannelCount is honored as expected even if the input
- // and output is 1.
- audit.define(
- {label: 'Givien outputChannelCount must be honored.'},
- (task, should) => {
- const node = new AudioWorkletNode(
- context, 'channel-count', {
- numberOfInputs: 1,
- numberOfOutputs: 1,
- outputChannelCount: [2],
- });
+ const node = new AudioWorkletNode(context, 'channel-count', {
+ numberOfInputs: 1,
+ numberOfOutputs: 1,
+ });
- node.port.onmessage = (message) => {
- const expected = message.data;
- should(expected.outputChannel,
- 'The expected output channel count').beEqualTo(2);
- task.done();
- };
+ const promiseMessage = waitForMessageFromPort(node.port);
- // We need to make an actual connection becasue the channel count
- // change might happen when the rendering starts. It is to test
- // if the specified channel count is kept correctly.
- node.connect(context.destination);
- });
- });
+ source.connect(node).connect(context.destination);
+ source.start();
+
+ const { outputChannel } = await promiseMessage;
+ assert_equals(
+ outputChannel,
+ 17,
+ 'Output channel count should follow upstream (17).');
+
+ }
+
+ {
+ const node = new AudioWorkletNode(context, 'channel-count', {
+ numberOfInputs: 1,
+ numberOfOutputs: 1,
+ outputChannelCount: [2],
+ });
+
+ const promiseMessage = waitForMessageFromPort(node.port);
+
+ node.connect(context.destination);
+
+ const { outputChannel } = await promiseMessage;
+ assert_equals(
+ outputChannel,
+ 2,
+ 'Explicit outputChannelCount [2] must be honored.');
+ }
+ }, `AudioWorkletNode channel count: dynamic propagation and `+
+ `honoring outputChannelCount (single serialized test).`);
</script>
</body>
</html>
