LayoutTests/webaudio/construct-node-with-closed-context.html

<!DOCTYPE html>
<html>
<body>
<script src="../resources/js-test.js"></script>
<script>
description("Makes sure that we don't throw an exception when constructing an AudioNode with a closed context.");

async function runTest() {
    iframe = document.createElement("iframe");
    document.body.appendChild(iframe);
    context = new iframe.contentWindow.AudioContext();
    document.body.removeChild(iframe);

    shouldNotThrow("new AnalyserNode(context)");
    shouldNotThrow("new AudioBufferSourceNode(context)");
    shouldNotThrow("new BiquadFilterNode(context)");
    shouldNotThrow("new ChannelMergerNode(context)");
    shouldNotThrow("new ChannelSplitterNode(context)");
    shouldNotThrow("new ConstantSourceNode(context)");
    shouldNotThrow("new ConvolverNode(context)");
    shouldNotThrow("new DelayNode(context)");
    shouldNotThrow("new DynamicsCompressorNode(context)");
    shouldNotThrow("new GainNode(context)");
    shouldNotThrow("new IIRFilterNode(context, { feedforward: [1], feedback: [1, -0.9] })");
    shouldNotThrow("new MediaElementAudioSourceNode(context, { mediaElement: new Audio })");
    shouldThrowErrorName("new MediaStreamAudioDestinationNode(context)", "NotAllowedError"); // Not per specification but this is Blink's behavior.
    shouldNotThrow("new OscillatorNode(context)");
    shouldNotThrow("new PannerNode(context)");
    shouldNotThrow("new PeriodicWave(context)");
    shouldNotThrow("new StereoPannerNode(context)");
    shouldNotThrow("new WaveShaperNode(context)");

    shouldNotThrow("context.createAnalyser()");
    shouldNotThrow("context.createBufferSource()");
    shouldNotThrow("context.createBiquadFilter()");
    shouldNotThrow("context.createChannelMerger()");
    shouldNotThrow("context.createChannelSplitter()");
    shouldNotThrow("context.createConstantSource()");
    shouldNotThrow("context.createConvolver()");
    shouldNotThrow("context.createDelay()");
    shouldNotThrow("context.createDynamicsCompressor()");
    shouldNotThrow("context.createGain()");
    shouldNotThrow("context.createIIRFilter([1], [1, -0.9])");
    shouldNotThrow("context.createMediaElementSource(new Audio)");
    shouldThrowErrorName("context.createMediaStreamDestination()", "NotAllowedError"); // Not per specification but this is Blink's behavior.
    shouldNotThrow("context.createOscillator()");
    shouldNotThrow("context.createPanner()");
    shouldNotThrow("context.createPeriodicWave([1, 2], [1, 2])");
    shouldNotThrow("context.createStereoPanner()");
    shouldNotThrow("context.createWaveShaper()");
    shouldNotThrow("context.createScriptProcessor()");

    await shouldRejectWithErrorName("context.suspend()", "InvalidStateError");
    await shouldRejectWithErrorName("context.resume()", "InvalidStateError");
    await shouldRejectWithErrorName("context.close()", "InvalidStateError");
}

onload = runTest;
</script>
</body>
</html>