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<!DOCTYPE html>
<html>
<head>
<title>
delaynode-maxdelaylimit.html
</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/delay-testing.js"></script>
</head>
<body>
<script id="layout-test-code">
let audit = Audit.createTaskRunner();
audit.define(
{
label: 'test',
description:
'Tests attribute and maximum allowed delay of DelayNode'
},
function(task, should) {
// Create offline audio context.
let context = new OfflineAudioContext(
1, sampleRate * renderLengthSeconds, sampleRate);
let toneBuffer = createToneBuffer(
context, 20, 20 * toneLengthSeconds, sampleRate); // 20Hz tone
let bufferSource = context.createBufferSource();
bufferSource.buffer = toneBuffer;
window.context = context;
should(() => context.createDelay(180),
'Setting Delay length to 180 seconds or more')
.throw(DOMException, 'NotSupportedError');
should(() => context.createDelay(0),
'Setting Delay length to 0 seconds')
.throw(DOMException, 'NotSupportedError');
should(() => context.createDelay(-1),
'Setting Delay length to negative')
.throw(DOMException, 'NotSupportedError');
should(() => context.createDelay(NaN),
'Setting Delay length to NaN')
.throw(TypeError);
let delay = context.createDelay(179);
delay.delayTime.value = delayTimeSeconds;
window.delay = delay;
should(
delay.delayTime.value,
'delay.delayTime.value = ' + delayTimeSeconds)
.beEqualTo(delayTimeSeconds);
bufferSource.connect(delay);
delay.connect(context.destination);
bufferSource.start(0);
context.startRendering()
.then(buffer => checkDelayedResult(buffer, toneBuffer, should))
.then(() => task.done());
});
audit.run();
</script>
</body>
</html>
|
