LayoutTests/webaudio/mediaelementaudiosourcenode.html

<!DOCTYPE html>

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

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

<script>
description("Basic tests for MediaElementAudioSourceNode API.");

var context = 0;

function runTest() {
    if (window.testRunner) {
        testRunner.dumpAsText();
        testRunner.waitUntilDone();
    }
    
    window.jsTestIsAsync = true;

    context = new webkitAudioContext();

    audioElement = new Audio();
    mediaSource = context.createMediaElementSource(audioElement);
    window.audioNode = mediaSource;

    // Check number of inputs and outputs.
    if (audioNode.numberOfInputs == 0)
        testPassed("Source AudioNode has no inputs.");
    else
        testFailed("Source AudioNode should not have inputs.");
    
    if (audioNode.numberOfOutputs == 1)
        testPassed("Source AudioNode has one output.");
    else
        testFailed("Source AudioNode should have one output.");

    // Try calling connect() method with illegal values.

    try {
        audioNode.connect(0, 0, 0);
        testFailed("connect() exception should be thrown for illegal destination AudioNode.");
    } catch(e) {
        testPassed("connect() exception thrown for illegal destination AudioNode.");
    }

    try {
        audioNode.connect(context.destination, 5, 0);
        testFailed("connect() exception should be thrown for illegal output index.");
    } catch(e) {
        testPassed("connect() exception thrown for illegal output index.");
    }

    try {
        audioNode.connect(context.destination, 0, 5);
        testFailed("connect() exception should be thrown for illegal input index.");
    } catch(e) {
        testPassed("connect() exception thrown for illegal input index.");
    }

    // Try calling connect() with proper values.
    try {
        audioNode.connect(context.destination, 0, 0);
        testPassed("audioNode.connect(context.destination) succeeded.");
    } catch(e) {
        testFailed("audioNode.connect(context.destination) failed.");
    }
    
    // Try creating another MediaElementAudioSourceNode using the same audio element.
    try {
        mediaSource = context.createMediaElementSource(audioElement);
        testFailed("createMediaElementSource() should throw if called twice on same HTMLMediaElement.");
    } catch(e) {
        testPassed("createMediaElementSource() threw error when called twice on same HTMLMediaElement.");
    }

    shouldThrow("context.createMediaElementSource(null)", "'TypeError: Argument 1 (\\'mediaElement\\') to webkitAudioContext.createMediaElementSource must be an instance of HTMLMediaElement'");

    finishJSTest();
}

runTest();

</script>

<script src="../resources/js-test-post.js"></script>
</body>
</html>