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<!DOCTYPE html>
<html>
<head>
<title>
Test sampleRate in AudioWorkletGlobalScope
</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">
let audit = Audit.createTaskRunner();
setup(() => {
let sampleRate = 48000;
let renderLength = 512;
let context = new OfflineAudioContext(1, renderLength, sampleRate);
let filePath = 'processors/one-pole-processor.js';
// Without rendering the context, attempt to access |sampleRate| in the
// global scope as soon as it is created.
audit.define(
'Query |sampleRate| upon AudioWorkletGlobalScope construction',
(task, should) => {
let onePoleFilterNode =
new AudioWorkletNode(context, 'one-pole-filter');
let frequencyParam = onePoleFilterNode.parameters.get('frequency');
should(frequencyParam.maxValue,
'frequencyParam.maxValue')
.beEqualTo(0.5 * context.sampleRate);
task.done();
});
context.audioWorklet.addModule(filePath).then(() => {
audit.run();
});
});
</script>
</body>
</html>
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