<!doctype html>
<html>
<head>
<script src="../resources/js-test.js"></script>
<script src="resources/audio-testing.js"></script>
<title>Test Supported Number of Channels for ConvolverNode</title>
</head>
<body>
<script>
description("Test Supported Number of Channels for ConvolverNode");
window.jsTestIsAsync = true;

function runTest() {
    // Just need a context to create nodes on, so any allowed length and rate is ok.
    var context = new OfflineAudioContext(1, 1, 48000);

    for (var count = 1; count <= 32; ++count) {
        var convolver = context.createConvolver();
        var buffer = context.createBuffer(count, 1, context.sampleRate);
        var message = "ConvolverNode with buffer of " + count + " channels";

        if (count == 1 || count == 2 || count == 4) {
            // These are the only valid channel counts for the buffer.
            shouldNotThrow(function () {
                convolver.buffer = buffer;
            }, message);
        } else {
            shouldThrowErrorName(function() {
                convolver.buffer = buffer;
            }, "NotSupportedError", message);
        }
    }

    finishJSTest();
}

runTest();
successfullyParsed = true;
</script>
</body>
</html>