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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html | |
| parent | Initial commit. (diff) | |
| download | firefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip | |
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html')
| -rw-r--r-- | testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html new file mode 100644 index 0000000000..b5b1ec0c3d --- /dev/null +++ b/testing/web-platform/tests/webaudio/the-audio-api/the-audiobuffersourcenode-interface/audiobuffersource-null.html @@ -0,0 +1,59 @@ +<!DOCTYPE html> +<html> + <head> + <title> + Test ABSN Outputs Silence if buffer is null + </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> + const audit = Audit.createTaskRunner(); + + audit.define('ABSN with null buffer', (task, should) => { + // Create test context. Length and sampleRate are pretty arbitrary, but + // we don't need either to be very large. + const context = new OfflineAudioContext( + {numberOfChannels: 1, length: 1024, sampleRate: 8192}); + + // Just create a constant buffer for testing. Anything will do as long + // as the buffer contents are not identically zero. + const audioBuffer = + new AudioBuffer({length: 10, sampleRate: context.sampleRate}); + const audioBufferSourceNode = new AudioBufferSourceNode(context); + + audioBuffer.getChannelData(0).fill(1); + + // These two tests are mostly for the informational messages to show + // what's happening. They should never fail! + should(() => { + audioBufferSourceNode.buffer = audioBuffer; + }, 'Setting ABSN.buffer to AudioBuffer').notThrow(); + + // This is the important part. Setting the buffer to null after setting + // it to something else should cause the source to produce silence. + should(() => { + audioBufferSourceNode.buffer = null; + }, 'Setting ABSN.buffer = null').notThrow(); + + audioBufferSourceNode.start(0); + audioBufferSourceNode.connect(context.destination); + + context.startRendering() + .then(buffer => { + // Since the buffer is null, the output of the source should be + // silence. + should(buffer.getChannelData(0), 'ABSN output') + .beConstantValueOf(0); + }) + .then(() => task.done()); + }); + + audit.run(); + </script> + </body> +</html> |