third_party/WebKit/LayoutTests/webaudio/audionode.html

   1 <!DOCTYPE html>
   2
   3 <html>
   4 <head>
   5 <script src="../resources/js-test.js"></script>
   6 <script src="resources/compatibility.js"></script>
   7 <script type="text/javascript" src="resources/audio-testing.js"></script>
   8 </head>
   9
  10 <body>
  11 <div id="description"></div>
  12 <div id="console"></div>
  13
  14 <script>
  15 description("Basic tests for AudioNode API.");
  16
  17 var context = 0;
  18 var context2 = 0;
  19 var context3 = 0;
  20
  21 function runTest() {
  22     if (window.testRunner) {
  23         testRunner.dumpAsText();
  24         testRunner.waitUntilDone();
  25     }
  26
  27     window.jsTestIsAsync = true;
  28
  29     context = new AudioContext();
  30     window.audioNode = context.createBufferSource();
  31
  32     // Check input and output numbers of AudioSourceNode.
  33     if (audioNode.numberOfInputs === 0)
  34         testPassed("Source AudioNode has no inputs.");
  35     else
  36         testFailed("Source AudioNode should not have inputs.");
  37
  38     if (audioNode.numberOfOutputs === 1)
  39         testPassed("Source AudioNode has one output.");
  40     else
  41         testFailed("Source AudioNode should have one output.");
  42
  43     // Check input and output numbers of AudioDestinationNode
  44     if (context.destination.numberOfInputs === 1)
  45         testPassed("Destination AudioNode has one input.");
  46     else
  47         testFailed("Destination AudioNode should have one input.");
  48
  49     if (context.destination.numberOfOutputs === 0)
  50         testPassed("Destination AudioNode has no outputs.");
  51     else
  52         testFailed("Destination AudioNode should have no outputs.");
  53
  54     // Try calling connect() method with illegal values.
  55     shouldThrow('audioNode.connect(0, 0, 0)');
  56     shouldThrow('audioNode.connect(null, 0, 0)');
  57     shouldThrow('audioNode.connect(context.destination, 5, 0)');
  58     shouldThrow('audioNode.connect(context.destination, 0, 5)');
  59
  60     shouldNotThrow('audioNode.connect(context.destination, 0, 0)');
  61
  62     // Create a new context and try to connect the other context's node to this one.
  63     try {
  64         context2 = new AudioContext();
  65         window.audioNode.connect(context2.destination);
  66         testFailed("exception should be thrown when connecting to other context's node.");
  67     } catch(e) {
  68         testPassed("exception thrown when connecting to other context's node.");
  69     }
  70
  71     // 3-arg AudioContext doesn't create an offline context anymore.
  72     shouldNotThrow("context3 = new AudioContext(1, 44100, 44100)");
  73     if (context3 instanceof OfflineAudioContext)
  74         testFailed("context3 should not be an OfflineAudioContext");
  75     else
  76         testPassed("context3 is not an OfflineAudioContext");
  77
  78     // Ensure it is an EventTarget
  79     try {
  80         audioNode.addEventListener('testEvent', function(){
  81             testPassed("AudioNode is an EventTarget");
  82         });
  83         audioNode.dispatchEvent(new Event('testEvent'));
  84     } catch(e) {
  85         testFailed("exception shouldn't be thrown when testing whether audio node is an event target");
  86     }
  87
  88     finishJSTest();
  89 }
  90
  91 runTest();
  92
  93 </script>
  94
  95 </body>
  96 </html>