diff options
| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /dom/media/webaudio/test/test_gainNode.html | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_gainNode.html')
| -rw-r--r-- | dom/media/webaudio/test/test_gainNode.html | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_gainNode.html b/dom/media/webaudio/test/test_gainNode.html new file mode 100644 index 0000000000..77b0ae88b0 --- /dev/null +++ b/dom/media/webaudio/test/test_gainNode.html @@ -0,0 +1,72 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test GainNode</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="text/javascript" src="webaudio.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<pre id="test"> +<script class="testbody" type="text/javascript"> + +var gTest = { + length: 2048, + numberOfChannels: 1, + createGraph(context) { + + var gain = new GainNode(context); + ok(gain.gain, "The audioparam member must exist"); + is(gain.gain.value, 1.0, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + gain.gain.value = 0.5; + is(gain.gain.value, 0.5, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + + gain = new GainNode(context, { gain: 0.5 }); + ok(gain.gain, "The audioparam member must exist"); + is(gain.gain.value, 0.5, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + gain.gain.value = 0.5; + is(gain.gain.value, 0.5, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + + var buffer = context.createBuffer(1, 2048, context.sampleRate); + for (var i = 0; i < 2048; ++i) { + buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate); + } + + var source = context.createBufferSource(); + source.buffer = buffer; + + gain = context.createGain(); + source.connect(gain); + + ok(gain.gain, "The audioparam member must exist"); + is(gain.gain.value, 1.0, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + gain.gain.value = 0.5; + is(gain.gain.value, 0.5, "Correct initial value"); + is(gain.gain.defaultValue, 1.0, "Correct default value"); + is(gain.channelCount, 2, "gain node has 2 input channels by default"); + is(gain.channelCountMode, "max", "Correct channelCountMode for the gain node"); + is(gain.channelInterpretation, "speakers", "Correct channelCountInterpretation for the gain node"); + + source.start(0); + return gain; + }, + createExpectedBuffers(context) { + var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate); + for (var i = 0; i < 2048; ++i) { + expectedBuffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate) / 2; + } + return expectedBuffer; + }, +}; + +runTest(); + +</script> +</pre> +</body> +</html> |