commit 462419f6f65aa8a0af75c08e50748c1a588b3cf2
parent 0d4b2d6c2be309b3247e25849d6176a52aa1dbc3
Author: Saqlain <2mesaqlain@gmail.com>
Date: Wed, 15 Oct 2025 08:23:54 +0000
Bug 1993572 [wpt PR 55314] - [webaudio-testharness] Migrate audiobuffersource-multi-channels.html, a=testonly
Automatic update from web-platform-tests
[webaudio-testharness] Migrate audiobuffersource-multi-channels.html
Convert audiobuffersource-multi-channels.html from the legacy audit.js
runner to pure testharness.js
Bug: 396477778
Change-Id: I12be99f3f7522bc1806871ec6a77eefc7901813c
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7002987
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Commit-Queue: Saqlain <2mesaqlain@gmail.com>
Cr-Commit-Position: refs/heads/main@{#1527747}
--
wpt-commits: c0c16af998c3cbd9bcef24c527ea67f6395a324d
wpt-pr: 55314
Diffstat:
1 file changed, 38 insertions(+), 58 deletions(-)
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-multi-channels.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-multi-channels.html
@@ -1,78 +1,58 @@
<!DOCTYPE html>
-<!--
-Test AudioBufferSourceNode supports 5.1 channel.
--->
<html>
<head>
<title>
- audiobuffersource-multi-channels.html
+ Test AudioBufferSourceNode supports 5.1 channel playback
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/webaudio/resources/audit-util.js"></script>
- <script src="/webaudio/resources/audit.js"></script>
<script src="/webaudio/resources/mix-testing.js"></script>
</head>
<body>
- <script id="layout-test-code">
- let audit = Audit.createTaskRunner();
- let context;
- let expectedAudio;
+ <script>
+ // Test AudioBufferSourceNode supports 5.1 channel.
+ // Creating context and fetching expected audio.
+ promise_test(async () => {
+ const sampleRate = 44100.0;
+ const context = new OfflineAudioContext(
+ 6, sampleRate * toneLengthSeconds, sampleRate);
- audit.define('initialize', (task, should) => {
- // Create offline audio context
- let sampleRate = 44100.0;
- should(() => {
- context = new OfflineAudioContext(
- 6, sampleRate * toneLengthSeconds, sampleRate);
- }, 'Creating context for testing').notThrow();
- should(
- Audit
- .loadFileFromUrl('resources/audiobuffersource-multi-channels-expected.wav')
- .then(arrayBuffer => {
- context.decodeAudioData(arrayBuffer).then(audioBuffer => {
- expectedAudio = audioBuffer;
- task.done();
- }).catch(error => {
- assert_unreached("Could not decode audio data due to " + error.message);
- })
- })
- , 'Fetching expected audio').beResolved();
- });
+ let expectedAudio;
- audit.define(
- {label: 'test', description: 'AudioBufferSource with 5.1 buffer'},
- (task, should) => {
- let toneBuffer =
- createToneBuffer(context, 440, toneLengthSeconds, 6);
+ const response = await fetch(
+ 'resources/audiobuffersource-multi-channels-expected.wav');
+ const arrayBuffer = await response.arrayBuffer();
+ try {
+ expectedAudio = await context.decodeAudioData(arrayBuffer);
+ } catch (error) {
+ assert_unreached(
+ `Could not decode audio data due to ${error.message}`);
+ }
- let source = context.createBufferSource();
- source.buffer = toneBuffer;
+ // Render and verify output.
+ const toneBuffer = createToneBuffer(context, 440, toneLengthSeconds, 6);
+ const source = new AudioBufferSourceNode(context, {buffer:toneBuffer});
- source.connect(context.destination);
- source.start(0);
+ source.connect(context.destination);
+ source.start();
- context.startRendering()
- .then(renderedAudio => {
- // Compute a threshold based on the maximum error, |maxUlp|,
- // in ULP. This is experimentally determined. Assuming that
- // the reference file is a 16-bit wav file, the max values in
- // the wave file are +/- 32768.
- let maxUlp = 1;
- let threshold = maxUlp / 32768;
- for (let k = 0; k < renderedAudio.numberOfChannels; ++k) {
- should(
- renderedAudio.getChannelData(k),
- 'Rendered audio for channel ' + k)
- .beCloseToArray(
- expectedAudio.getChannelData(k),
- {absoluteThreshold: threshold});
- }
- })
- .then(() => task.done());
- });
+ const renderedAudio = await context.startRendering();
- audit.run();
+ // Compute a threshold based on the maximum error, |maxUlp|,
+ // in ULP. This is experimentally determined. Assuming that
+ // the reference file is a 16-bit wav file, the max values in
+ // the wave file are +/- 32768.
+ const maxUlp = 1;
+ const threshold = maxUlp / 32768;
+ for (let k = 0; k < renderedAudio.numberOfChannels; ++k) {
+ assert_array_approx_equals(
+ renderedAudio.getChannelData(k),
+ expectedAudio.getChannelData(k),
+ threshold,
+ `Rendered audio for channel ${k}`);
+ }
+ }, 'AudioBufferSourceNode 5.1 channel playback verification');
</script>
</body>
</html>
