1 files changed, 58 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_disconnectAudioParam.html b/dom/media/webaudio/test/test_disconnectAudioParam.html
new file mode 100644
index 0000000000..bfa4f92312
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+++ b/dom/media/webaudio/test/test_disconnectAudioParam.html
@@ -0,0 +1,58 @@
+<!DOCTYPE HTML>
+<html>
+  <head>
+    <title>Test whether we can disconnect an AudioParam</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">
+      var gTest = {
+        length: 256,
+        numberOfChannels: 1,
+        createGraph(context) {
+    var sourceBuffer = context.createBuffer(1, 256, context.sampleRate);
+    var data = sourceBuffer.getChannelData(0);
+    for (var j = 0; j < data.length; j++) {
+        data[j] = 1;
+    }
+
+    var source = context.createBufferSource();
+    source.buffer = sourceBuffer;
+
+    var half = context.createGain();
+    var gain1 = context.createGain();
+    var gain2 = context.createGain();
+
+    half.gain.value = 0.5;
+
+    source.connect(gain1);
+    gain1.connect(gain2);
+    source.connect(half);
+
+    half.connect(gain1.gain);
+    half.connect(gain2.gain);
+
+    half.disconnect(gain2.gain);
+
+    source.start();
+
+    return gain2;
+  },
+        createExpectedBuffers(context) {
+    expectedBuffer = context.createBuffer(1, 256, context.sampleRate);
+    for (var i = 0; i < 256; ++i) {
+      expectedBuffer.getChannelData(0)[i] = 1.5;
+    }
+
+    return expectedBuffer;
+  }
+      };
+
+      runTest();
+      </script>
+    </pre>
+  </body>
+</html>