third_party/WebKit/LayoutTests/webaudio/realtimeanalyser-basic.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4 <script src="../resources/js-test.js"></script>
   5 <script src="resources/audio-testing.js"></script>
   6 <script src="resoruces/compatibility.js"></script>
   7 </head>
   8
   9 <body>
  10 <div id="description"></div>
  11 <div id="console"></div>
  12
  13 <script>
  14 description("Basic tests for AnalyserNode.");
  15
  16 var context = 0;
  17
  18 function runTest() {
  19     if (window.testRunner) {
  20         testRunner.dumpAsText();
  21         testRunner.waitUntilDone();
  22     }
  23
  24     window.jsTestIsAsync = true;
  25
  26     context = new AudioContext();
  27     var analyser = context.createAnalyser();
  28
  29     if (analyser.numberOfInputs === 1)
  30         testPassed("AnalyserNode has one input.");
  31     else
  32         testFailed("AnalyserNode should have one input, not " + analyser.numberOfInputs + ".");
  33
  34     if (analyser.numberOfOutputs === 1)
  35         testPassed("AnalyserNode has one output.");
  36     else
  37         testFailed("AnalyserNode should have one output.");
  38
  39     if (analyser.minDecibels === -100)
  40         testPassed("minDecibels default value is -100.");
  41     else
  42         testFailed("minDecibels default value should be -100.");
  43
  44     if (analyser.maxDecibels === -30)
  45         testPassed("maxDecibels default value is -30.");
  46     else
  47         testFailed("maxDecibels default value should be -30.");
  48
  49     if (analyser.smoothingTimeConstant === 0.8)
  50         testPassed("smoothingTimeConstant default value is 0.8.");
  51     else
  52         testFailed("smoothingTimeConstant default value should be 0.8.");
  53
  54     var expectedValue = -50 - (1/3);
  55     analyser.minDecibels = expectedValue;
  56     if (analyser.minDecibels === expectedValue)
  57         testPassed("minDecibels value is set to " + expectedValue + ".")
  58     else
  59         testFailed("minDecibels value should be set to " + expectedValue + ", not " + analyser.minDecibels + ".");
  60
  61     expectedValue = -40 - (1/3);
  62     analyser.maxDecibels = expectedValue;
  63     if (analyser.maxDecibels === expectedValue)
  64         testPassed("maxDecibels value is set to " + expectedValue + ".")
  65     else
  66         testFailed("maxDecibels value should be set to " + expectedValue + ", not " + analyser.maxDecibels + ".");
  67
  68     finishJSTest();
  69 }
  70
  71 runTest();
  72
  73 </script>
  74
  75 </body>
  76 </html>