gecko-dev/dom/media/webaudio/test/test_decodeAudioDataOnDetac...

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<title>Bug 1308434 - Test DecodeAudioData on detached buffer</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 type="text/javascript">
var testDecodeAudioDataOnDetachedBuffer = function(buffer) {
var context = new AudioContext();
// make the buffer detached
context.decodeAudioData(buffer);
// check that the buffer is detached
is(buffer.byteLength, 0, "Buffer should be detached");
// call decodeAudioData on detached buffer
context.decodeAudioData(buffer).then(function(b) {
ok(false, "We should not be able to decode the detached buffer but we do");
SimpleTest.finish();
}, function(r) {
SimpleTest.isa(r, TypeError);
is(r.message, "Argument of AudioContext.decodeAudioData can't be a detached buffer", "Incorrect message");
SimpleTest.finish();
});
};
var filename = "small-shot.mp3";
SimpleTest.waitForExplicitFinish();
addLoadEvent(function() {
var xhr = new XMLHttpRequest();
xhr.open("GET", filename);
xhr.responseType = "arraybuffer";
xhr.onload = function() {
testDecodeAudioDataOnDetachedBuffer(xhr.response);
};
xhr.send();
});
</script>
</pre>
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