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<head>
<title>Test AudioContext.listener and the AudioListener interface</title>
<script type="text/javascript" src="/tests/SimpleTest/SimpleTest.js"></script>
<link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
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<pre id="test">
<script class="testbody" type="text/javascript">
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
var context = new AudioContext();
ok("listener" in context, "AudioContext.listener should exist");
ok(Math.abs(context.listener.dopplerFactor - 1.0) < 1e-4, "Correct default doppler factor");
ok(Math.abs(context.listener.speedOfSound - 343.3) < 1e-4, "Correct default speed of sound value");
context.listener.dopplerFactor = 0.5;
ok(Math.abs(context.listener.dopplerFactor - 0.5) < 1e-4, "The doppler factor value can be changed");
context.listener.speedOfSound = 400;
ok(Math.abs(context.listener.speedOfSound - 400) < 1e-4, "The speed of sound can be changed");
// The values set by the following cannot be read from script, but the
// implementation is simple enough, so we just make sure that nothing throws.
with (context.listener) {
setPosition(1.0, 1.0, 1.0);
setOrientation(1.0, 1.0, 1.0, 1.0, 1.0, 1.0);
setVelocity(0.5, 1.0, 1.5);
}
SimpleTest.finish();
});
</script>
</pre>
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