test_waveShaperInvalidLengthCurve.html

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<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>