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<!DOCTYPE HTML>
<html>
<head>
<title>Test WaveShaperNode with an invalid curve</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">
var gTest = {
length: 2048,
numberOfChannels: 1,
createGraph(context) {
var source = context.createBufferSource();
source.buffer = this.buffer;
var shaper = context.createWaveShaper();
expectException(() => {
shaper.curve = new Float32Array(0);
}, DOMException.INVALID_STATE_ERR);
is(shaper.curve, null, "The curve mustn't have been set");
expectException(() => {
shaper.curve = new Float32Array(1);
}, DOMException.INVALID_STATE_ERR);
is(shaper.curve, null, "The curve mustn't have been set");
expectNoException(() => {
shaper.curve = new Float32Array(2);
});
isnot(shaper.curve, null, "The curve must have been set");
expectNoException(() => {
shaper.curve = null;
});
is(shaper.curve, null, "The curve must be null by default");
source.connect(shaper);
source.start(0);
return shaper;
},
createExpectedBuffers(context) {
var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate);
for (var i = 0; i < 2048; ++i) {
expectedBuffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
}
this.buffer = expectedBuffer;
return expectedBuffer;
},
};
runTest();
</script>
</pre>
</body>
</html>
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