content/media/webaudio/test/test_OfflineAudioContext.html

Fri, 16 Jan 2015 04:50:19 +0100

author
Michael Schloh von Bennewitz <michael@schloh.com>
date
Fri, 16 Jan 2015 04:50:19 +0100
branch
TOR_BUG_9701
changeset 13
44a2da4a2ab2
permissions
-rw-r--r--

Replace accessor implementation with direct member state manipulation, by
request https://trac.torproject.org/projects/tor/ticket/9701#comment:32

michael@0 1 <!DOCTYPE HTML>
michael@0 2 <html>
michael@0 3 <head>
michael@0 4 <title>Test OfflineAudioContext</title>
michael@0 5 <script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
michael@0 6 <script type="text/javascript" src="webaudio.js"></script>
michael@0 7 <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
michael@0 8 </head>
michael@0 9 <body>
michael@0 10 <pre id="test">
michael@0 11 <script class="testbody" type="text/javascript">
michael@0 12
michael@0 13 SimpleTest.waitForExplicitFinish();
michael@0 14 addLoadEvent(function() {
michael@0 15 var ctx = new OfflineAudioContext(2, 100, 22050);
michael@0 16 ok(ctx instanceof EventTarget, "OfflineAudioContexts must be EventTargets");
michael@0 17
michael@0 18 var buf = ctx.createBuffer(2, 100, ctx.sampleRate);
michael@0 19 for (var i = 0; i < 2; ++i) {
michael@0 20 for (var j = 0; j < 100; ++j) {
michael@0 21 buf.getChannelData(i)[j] = Math.sin(2 * Math.PI * 200 * j / ctx.sampleRate);
michael@0 22 }
michael@0 23 }
michael@0 24
michael@0 25 expectException(function() {
michael@0 26 ctx.createMediaStreamDestination();
michael@0 27 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 28
michael@0 29 expectException(function() {
michael@0 30 new OfflineAudioContext(2, 100, 0);
michael@0 31 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 32 expectException(function() {
michael@0 33 new OfflineAudioContext(2, 100, -1);
michael@0 34 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 35 expectException(function() {
michael@0 36 new OfflineAudioContext(0, 100, 44100);
michael@0 37 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 38 new OfflineAudioContext(32, 100, 44100);
michael@0 39 expectException(function() {
michael@0 40 new OfflineAudioContext(33, 100, 44100);
michael@0 41 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 42 expectException(function() {
michael@0 43 new OfflineAudioContext(2, 0, 44100);
michael@0 44 }, DOMException.NOT_SUPPORTED_ERR);
michael@0 45
michael@0 46 var src = ctx.createBufferSource();
michael@0 47 src.buffer = buf;
michael@0 48 src.start(0);
michael@0 49 src.connect(ctx.destination);
michael@0 50 ctx.startRendering();
michael@0 51 ctx.addEventListener("complete", function(e) {
michael@0 52 ok(e instanceof OfflineAudioCompletionEvent, "Correct event received");
michael@0 53 is(e.renderedBuffer.numberOfChannels, 2, "Correct expected number of buffers");
michael@0 54 compareBuffers(e.renderedBuffer, buf);
michael@0 55
michael@0 56 expectException(function() {
michael@0 57 ctx.startRendering();
michael@0 58 }, DOMException.INVALID_STATE_ERR);
michael@0 59
michael@0 60 SimpleTest.finish();
michael@0 61 }, false);
michael@0 62 });
michael@0 63
michael@0 64 </script>
michael@0 65 </pre>
michael@0 66 </body>
michael@0 67 </html>

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