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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-destinationnode-interface/destination.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<html>
<head>
<title>
AudioDestinationNode
</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
</head>
<body>
<script>
function assert_doesnt_throw(f, desc) {
try {
f();
} catch (e) {
assert_true(false, desc);
return;
}
assert_true(true, desc);
}
test(function() {
var ac = new AudioContext();
assert_equals(ac.destination.channelCount, 2,
"A DestinationNode should have two channels by default");
assert_greater_than_equal(ac.destination.maxChannelCount, 2,
"maxChannelCount should be >= 2");
assert_throws_dom("IndexSizeError", function() {
ac.destination.channelCount = ac.destination.maxChannelCount + 1
}, `Setting the channelCount to something greater than
the maxChannelCount should throw IndexSizeError`);
assert_throws_dom("NotSupportedError", function() {
ac.destination.channelCount = 0;
}, "Setting the channelCount to 0 should throw NotSupportedError");
assert_doesnt_throw(function() {
ac.destination.channelCount = ac.destination.maxChannelCount;
}, "Setting the channelCount to maxChannelCount should not throw");
assert_doesnt_throw(function() {
ac.destination.channelCount = 1;
}, "Setting the channelCount to 1 should not throw");
});
</script>
</body>
</html>