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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
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Add m-esr52 at 52.6.0
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+<!DOCTYPE HTML>
+<html>
+<head>
+ <title>Test AnalyserNode</title>
+ <script type="text/javascript" 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 buffer = context.createBuffer(1, 2048, context.sampleRate);
+ for (var i = 0; i < 2048; ++i) {
+ buffer.getChannelData(0)[i] = Math.sin(440 * 2 * Math.PI * i / context.sampleRate);
+ }
+
+ var destination = context.destination;
+
+ var source = context.createBufferSource();
+
+ var analyser = context.createAnalyser();
+
+ source.buffer = buffer;
+
+ source.connect(analyser);
+ analyser.connect(destination);
+
+ is(analyser.channelCount, 1, "analyser node has 1 input channels by default");
+ is(analyser.channelCountMode, "max", "Correct channelCountMode for the analyser node");
+ is(analyser.channelInterpretation, "speakers", "Correct channelCountInterpretation for the analyser node");
+
+ is(analyser.fftSize, 2048, "Correct default value for fftSize");
+ is(analyser.frequencyBinCount, 1024, "Correct default value for frequencyBinCount");
+ expectException(function() {
+ analyser.fftSize = 0;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 1;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 8;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 100; // non-power of two
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 2049;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 4097;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 8193;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 16385;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 32769;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.fftSize = 65536;
+ }, DOMException.INDEX_SIZE_ERR);
+ analyser.fftSize = 1024;
+ is(analyser.frequencyBinCount, 512, "Correct new value for frequencyBinCount");
+
+ is(analyser.minDecibels, -100, "Correct default value for minDecibels");
+ is(analyser.maxDecibels, -30, "Correct default value for maxDecibels");
+ expectException(function() {
+ analyser.minDecibels = -30;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.minDecibels = -29;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.maxDecibels = -100;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.maxDecibels = -101;
+ }, DOMException.INDEX_SIZE_ERR);
+
+ is(analyser.smoothingTimeConstant, 0.8, "Correct default value for smoothingTimeConstant");
+ expectException(function() {
+ analyser.smoothingTimeConstant = -0.1;
+ }, DOMException.INDEX_SIZE_ERR);
+ expectException(function() {
+ analyser.smoothingTimeConstant = 1.1;
+ }, DOMException.INDEX_SIZE_ERR);
+ analyser.smoothingTimeConstant = 0;
+ analyser.smoothingTimeConstant = 1;
+
+ SimpleTest.finish();
+});
+
+</script>
+</pre>
+</body>
+</html>