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<!DOCTYPE html>
<html class="a">
<head>
<title>Cycles without DelayNode in audio node graph</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
function doTest() {
var off = new OfflineAudioContext(1, 512, 48000);
var osc = new OscillatorNode(off);
var fb = new GainNode(off);
// zero delay feedback loop
osc.connect(fb).connect(fb).connect(off.destination);
osc.start(0);
return off.startRendering().then((b) => {
return Promise.resolve(b.getChannelData(0));
});
}
promise_test(() => {
return doTest().then(samples => {
var silent = true;
for (var i = 0; i < samples.length; i++) {
if (samples[i] != 0.0) {
silent = false;
break;
}
}
assert_true(silent);
});
}, 'Test that cycles that don\'t contain a DelayNode are muted');
</script>
</body>
</html>
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