test_setValueCurveWithNonFiniteElements.html

Enable keyboard shortcuts

<!DOCTYPE HTML>

<html>

<meta charset=utf-8>

<head>

  <title>Bug 1308437 - setValueCurve should throw on non-finite elements</title>

  <script src="/tests/SimpleTest/SimpleTest.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();

function testInfiniteElement(audioContext, audioParam) {

  // create value curve with infinite element

  var arr = new Float32Array(5);

  arr[0] = 0.5;

  arr[1] = 1;

  arr[2] = Infinity;

  arr[3] = 1;

  arr[4] = 0.5;

  try {

    audioParam.setValueCurveAtTime(arr, audioContext.currentTime(), 2);

    ok(false, "We shouldn't be able to call setValueCurve with Infinity but we can");

  } catch(e) {

    ok(e instanceof TypeError, "TypeError is thrown");

};

function testNanElement(audioContext, audioParam) {

  // create value curve with infinite element

  var arr = new Float32Array(5);

  arr[0] = 0.5;

  arr[1] = 1;

  arr[2] = NaN;

  arr[3] = 1;

  arr[4] = 0.5;

  try {

    audioParam.setValueCurveAtTime(arr, audioContext.currentTime(), 2);

    ok(false, "We shouldn't be able to call setValueCurve with NaN but we can");

  } catch(e) {

    ok(e instanceof TypeError, "TypeError is thrown");

};

addLoadEvent(function() {

  var audioContext = new AudioContext();

  var gainNode = audioContext.createGain();

  testInfiniteElement(audioContext, gainNode.gain);

  testNanElement(audioContext, gainNode.gain);

  SimpleTest.finish();

});

</script>

</pre>

</body>

</html>