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Diffstat (limited to 'dom/media/webaudio/test/test_analyserNode.html')
-rw-r--r-- | dom/media/webaudio/test/test_analyserNode.html | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_analyserNode.html b/dom/media/webaudio/test/test_analyserNode.html new file mode 100644 index 0000000000..0793eeb2cb --- /dev/null +++ b/dom/media/webaudio/test/test_analyserNode.html @@ -0,0 +1,178 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test AnalyserNode</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"> + +function testNode() { + 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, 2, "analyser node has 2 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); + + ok(Math.abs(analyser.smoothingTimeConstant - 0.8) < 0.001, "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; +} + +function testConstructor() { + var context = new AudioContext(); + + var analyser = new AnalyserNode(context); + is(analyser.channelCount, 2, "analyser node has 2 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"); + is(analyser.minDecibels, -100, "Correct default value for minDecibels"); + is(analyser.maxDecibels, -30, "Correct default value for maxDecibels"); + ok(Math.abs(analyser.smoothingTimeConstant - 0.8) < 0.001, "Correct default value for smoothingTimeConstant"); + + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 0 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 1 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 8 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 100 }); // non-power of two + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 2049 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 4097 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 8193 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 16385 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 32769 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { fftSize: 65536 }); + }, DOMException.INDEX_SIZE_ERR); + analyser = new AnalyserNode(context, { fftSize: 1024 }); + is(analyser.frequencyBinCount, 512, "Correct new value for frequencyBinCount"); + + expectException(function() { + analyser = new AnalyserNode(context, { minDecibels: -30 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { minDecibels: -29 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { maxDecibels: -100 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { maxDecibels: -101 }); + }, DOMException.INDEX_SIZE_ERR); + + expectException(function() { + analyser = new AnalyserNode(context, { smoothingTimeConstant: -0.1 }); + }, DOMException.INDEX_SIZE_ERR); + expectException(function() { + analyser = new AnalyserNode(context, { smoothingTimeConstant: -1.1 }); + }, DOMException.INDEX_SIZE_ERR); + analyser = new AnalyserNode(context, { smoothingTimeConstant: 0 }); + analyser = new AnalyserNode(context, { smoothingTimeConstant: 1 }); +} + +SimpleTest.waitForExplicitFinish(); +addLoadEvent(function() { + + testNode(); + testConstructor(); + + SimpleTest.finish(); +}); + +</script> +</pre> +</body> +</html> |