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<!DOCTYPE HTML>
<html>
<head>
<title>Test the OscillatorNode interface</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">
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
var context = new AudioContext();
var osc = new OscillatorNode(context);
is(osc.channelCount, 2, "Oscillator node has 2 input channels by default");
is(osc.channelCountMode, "max", "Correct channelCountMode for the Oscillator node");
is(osc.channelInterpretation, "speakers", "Correct channelCountInterpretation for the Oscillator node");
is(osc.type, "sine", "Correct default type");
expectException(function() {
osc.type = "custom";
}, DOMException.INVALID_STATE_ERR);
is(osc.type, "sine", "Cannot set the type to custom");
is(osc.frequency.value, 440, "Correct default frequency value");
is(osc.detune.value, 0, "Correct default detine value");
// Make sure that we can set all of the valid type values
var types = [
"sine",
"square",
"sawtooth",
"triangle",
];
for (var i = 0; i < types.length; ++i) {
osc.type = types[i];
}
// Verify setPeriodicWave()
var real = new Float32Array([1.0, 0.5, 0.25, 0.125]);
var imag = new Float32Array([1.0, 0.7, -1.0, 0.5]);
osc.setPeriodicWave(context.createPeriodicWave(real, imag));
is(osc.type, "custom", "Failed to set custom waveform");
expectNoException(function() {
osc.start();
});
expectNoException(function() {
osc.stop();
});
SimpleTest.finish();
});
</script>
</pre>
</body>
</html>
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