commit bb0db8d96356d753e1f980b590270b0aa0029946
parent a438b74afb3a64b139ed1479fe55d455cb5405d0
Author: punithbnayak <punithbnayak@chromium.org>
Date: Thu, 6 Nov 2025 21:37:39 +0000
Bug 1998001 [wpt PR 55832] - [webaudio-testharness] Migrate audiochannelmerger-disconnect.html, a=testonly
Automatic update from web-platform-tests
[webaudio-testharness] Migrate audiochannelmerger-disconnect.html
Convert audiochannelmerger-disconnect.html from the legacy
audit.js runner to pure testharness.js
Change-Id: I363dfc38baddbd78c53c69d7a493507238dfc1e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/7037373
Reviewed-by: Michael Wilson <mjwilson@chromium.org>
Commit-Queue: Punith Nayak <punithbnayak@chromium.org>
Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1539566}
--
wpt-commits: ec39b7067c1be53368317a1fbf78e9c0df9c5179
wpt-pr: 55832
Diffstat:
1 file changed, 37 insertions(+), 49 deletions(-)
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-channelmergernode-interface/audiochannelmerger-disconnect.html b/testing/web-platform/tests/webaudio/the-audio-api/the-channelmergernode-interface/audiochannelmerger-disconnect.html
@@ -2,40 +2,32 @@
<html>
<head>
<title>
- audiochannelmerger-disconnect.html
+ ChannelMergerNode: Asynchronous disconnect() correctly silences the
+ output
</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>
</head>
<body>
- <script id="layout-test-code">
- let renderQuantum = 128;
-
- let numberOfChannels = 2;
- let sampleRate = 44100;
- let renderDuration = 0.5;
- let disconnectTime = 0.5 * renderDuration;
-
- let audit = Audit.createTaskRunner();
+ <script>
+ const renderQuantum = 128;
+ const numberOfChannels = 2;
+ const sampleRate = 44100;
+ const renderDuration = 0.5;
+ const disconnectTime = 0.5 * renderDuration;
// Task: Check if the merger outputs a silent channel when an input is
// disconnected.
- audit.define('silent-disconnect', (task, should) => {
- let context = new OfflineAudioContext(
+ promise_test(async () => {
+ const context = new OfflineAudioContext(
numberOfChannels, renderDuration * sampleRate, sampleRate);
- let merger = context.createChannelMerger();
- let source1 = context.createBufferSource();
- let source2 = context.createBufferSource();
+ const merger = new ChannelMergerNode(context, {numberOfInputs: 6});
+ const source1 = new ConstantSourceNode(context, {offset: 1.0});
+ const source2 = new ConstantSourceNode(context, {offset: 1.0});
- // Create and assign a constant buffer.
- let bufferDCOffset = createConstantBuffer(context, 1, 1);
- source1.buffer = source2.buffer = bufferDCOffset;
- source1.loop = source2.loop = true;
-
- // Connect the output of source into the 4th input of merger. The merger
- // should produce 6 channel output.
+ // Connect the sources to the first two inputs of the merger.
+ // The merger should produce 6 channel output.
source1.connect(merger, 0, 0);
source2.connect(merger, 0, 1);
merger.connect(context.destination);
@@ -44,39 +36,35 @@
// Schedule the disconnection of |source2| at the half of render
// duration.
- context.suspend(disconnectTime).then(function() {
+ context.suspend(disconnectTime).then(() => {
source2.disconnect();
context.resume();
});
- context.startRendering()
- .then(function(buffer) {
- // The entire first channel of the output should be 1.
- should(buffer.getChannelData(0), 'Channel #0')
- .beConstantValueOf(1);
+ const resultBuffer = await context.startRendering();
+ // The entire first channel of the output should be 1.
+ assert_constant_value(
+ resultBuffer.getChannelData(0), 1, 'Channel #0 should be 1.');
+
+ // Calculate the first zero index in the second channel.
+ const channel1 = resultBuffer.getChannelData(1);
+ let disconnectIndex = disconnectTime * sampleRate;
+ disconnectIndex = renderQuantum *
+ Math.floor((disconnectIndex + renderQuantum - 1) / renderQuantum);
- // Calculate the first zero index in the second channel.
- let channel1 = buffer.getChannelData(1);
- let disconnectIndex = disconnectTime * sampleRate;
- disconnectIndex = renderQuantum *
- Math.floor(
- (disconnectIndex + renderQuantum - 1) / renderQuantum);
- let firstZeroIndex = channel1.findIndex(function(element, index) {
- if (element === 0)
- return index;
- });
+ const firstZeroIndex =
+ channel1.findIndex(element => element === 0);
- // The second channel should contain 1, and 0 after the
- // disconnection.
- should(channel1, 'Channel #1').containValues([1, 0]);
- should(
- firstZeroIndex, 'The index of first zero in the channel #1')
- .beEqualTo(disconnectIndex);
- })
- .then(() => task.done());
- });
+ // The second channel should contain 1, and 0 after the
+ // disconnection.
+ assert_constant_value(channel1.subarray(0, disconnectIndex), 1,
+ 'Channel #1 before disconnect');
+ assert_constant_value(channel1.subarray(disconnectIndex), 0,
+ 'Channel #1 after disconnect');
- audit.run();
+ assert_equals(firstZeroIndex, disconnectIndex,
+ 'The index of first zero in the channel #1');
+ }, 'Asynchronous disconnect() correctly silences the output');
</script>
</body>
</html>
