LayoutTests/webaudio/test-basic.html - WebKit - Git at Google

 <!DOCTYPE html>

 <!--
 This is a very basic test to make sure testRunner.setAudioResult() works correctly.
 It generates a 2 seconds long stereo result @44.1KHz
 The left channel will be a 880Hz tone, while the right will be 440Hz.
 -->

 <html>
 <head>
 <script src="../resources/js-test.js"></script>
 <script type="text/javascript" src="resources/audio-testing.js"></script>

 </head>
 <body>

 <div id="description"></div>
 <div id="console"></div>

 <script>
 description("Tests basic audio test infrastructure: specifically testRunner.setAudioResult()");

 var sampleRate = 44100.0;
 var lengthInSeconds = 2;

 function generateSinWave(audioBuffer) {
     var n = audioBuffer.length;
     var channelL = audioBuffer.getChannelData(0);
     var channelR = audioBuffer.getChannelData(1);
     var sampleRate = audioBuffer.sampleRate;

     for (var i = 0; i < n; ++i) {
         channelL[i] = Math.sin(880.0 * 2.0*Math.PI * i / sampleRate);
         channelR[i] = Math.sin(440.0 * 2.0*Math.PI * i / sampleRate);
     }
 }

 function runTest() {
     if (!window.testRunner)
         return;

     var context = new webkitAudioContext();
     var audioBuffer = context.createBuffer(2, lengthInSeconds * sampleRate, sampleRate);

     generateSinWave(audioBuffer);

     var audioData = createAudioData(audioBuffer);
     testRunner.setAudioResult(audioData);
 }

 runTest();

 </script>
 <body>
 </body>
 </html>
	<!DOCTYPE html>

	<!--
	This is a very basic test to make sure testRunner.setAudioResult() works correctly.
	It generates a 2 seconds long stereo result @44.1KHz
	The left channel will be a 880Hz tone, while the right will be 440Hz.
	-->

	<html>
	<head>
	<script src="../resources/js-test.js"></script>
	<script type="text/javascript" src="resources/audio-testing.js"></script>

	</head>
	<body>

	<div id="description"></div>
	<div id="console"></div>

	<script>
	description("Tests basic audio test infrastructure: specifically testRunner.setAudioResult()");

	var sampleRate = 44100.0;
	var lengthInSeconds = 2;

	function generateSinWave(audioBuffer) {
	var n = audioBuffer.length;
	var channelL = audioBuffer.getChannelData(0);
	var channelR = audioBuffer.getChannelData(1);
	var sampleRate = audioBuffer.sampleRate;

	for (var i = 0; i < n; ++i) {
	channelL[i] = Math.sin(880.0 * 2.0Math.PI i / sampleRate);
	channelR[i] = Math.sin(440.0 * 2.0Math.PI i / sampleRate);
	}
	}

	function runTest() {
	if (!window.testRunner)
	return;

	var context = new webkitAudioContext();
	var audioBuffer = context.createBuffer(2, lengthInSeconds * sampleRate, sampleRate);

	generateSinWave(audioBuffer);

	var audioData = createAudioData(audioBuffer);
	testRunner.setAudioResult(audioData);
	}

	runTest();

	</script>
	<body>
	</body>
	</html>