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diff --git a/dom/media/webaudio/test/test_audioParamSetValueAtTime.html b/dom/media/webaudio/test/test_audioParamSetValueAtTime.html
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index 000000000..1ab515935
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+++ b/dom/media/webaudio/test/test_audioParamSetValueAtTime.html
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+<!DOCTYPE HTML>
+<html>
+<head>
+  <title>Test AudioParam.linearRampToValue</title>
+  <script type="text/javascript" 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 V0 = 0.1;
+var V1 = 0.9;
+var T0 = 0;
+
+var gTest = {
+  length: 2048,
+  numberOfChannels: 1,
+  createGraph: function(context) {
+    var sourceBuffer = context.createBuffer(1, 2048, context.sampleRate);
+    for (var i = 0; i < 2048; ++i) {
+      sourceBuffer.getChannelData(0)[i] = 1;
+    }
+
+    var source = context.createBufferSource();
+    source.buffer = sourceBuffer;
+
+    var gain = context.createGain();
+    gain.gain.value = 0;
+    gain.gain.setValueAtTime(V0, 1024/context.sampleRate);
+
+    source.connect(gain);
+
+    source.start(0);
+    return gain;
+  },
+  createExpectedBuffers: function(context) {
+    var expectedBuffer = context.createBuffer(1, 2048, context.sampleRate);
+    for (var i = 1024; i < 2048; ++i) {
+      expectedBuffer.getChannelData(0)[i] = 0.1;
+    }
+    return expectedBuffer;
+  },
+};
+
+runTest();
+
+</script>
+</pre>
+</body>
+</html>