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<!DOCTYPE html>
<html>
<head>
<title>
realtimeanalyser-fft-sizing.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>
</head>
<body>
<script id="layout-test-code">
let audit = Audit.createTaskRunner();
function doTest(fftSize, illegal, should) {
let c = new OfflineAudioContext(1, 1000, 44100);
let a = c.createAnalyser();
let message = 'Setting fftSize to ' + fftSize;
let tester = function() {
a.fftSize = fftSize;
};
if (illegal) {
should(tester, message).throw(DOMException, 'IndexSizeError');
} else {
should(tester, message).notThrow();
}
}
audit.define(
{
label: 'FFT size test',
description: 'Test that re-sizing the FFT arrays does not fail.'
},
function(task, should) {
doTest(-1, true, should);
doTest(0, true, should);
doTest(1, true, should);
for (let i = 2; i <= 0x20000; i *= 2) {
if (i >= 32 && i <= 32768)
doTest(i, false, should);
else
doTest(i, true, should);
doTest(i + 1, true, should);
}
task.done();
});
audit.run();
</script>
</body>
</html>
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