<!DOCTYPE html>

<html>
<head>
<script src="../resources/js-test.js"></script>
<script src="resources/audio-testing.js"></script>
<script src="resources/audiobuffersource-testing.js"></script>
</head>

<body>

<div id="description"></div>
<div id="console"></div>

<script>
description("Tests that AudioBufferSourceNode validates start and stop calls.");

var bufferSource;

function runTest() {
    window.jsTestIsAsync = true;

    var sampleRate = 44100.0;
    var numberOfFrames = 32;
    var context = new OfflineAudioContext(1, numberOfFrames, sampleRate);
    bufferSource = context.createBufferSource();
    bufferSource.buffer = createTestBuffer(context, numberOfFrames);
    bufferSource.connect(context.destination);

    // 'stop' should be called only after 'start'.
    shouldThrowErrorName("bufferSource.stop(0)", "InvalidStateError");
    bufferSource.start(0);

    // 'start' should be called only once.
    shouldThrowErrorName("bufferSource.start(0)", "InvalidStateError");
    bufferSource.stop(0);

    shouldNotThrow("bufferSource.stop(0)", "InvalidStateError");

    context.oncomplete = finishJSTest;
    context.startRendering();
}

runTest();

</script>
</body>
</html>