audioworklet-postmessage-sharedarraybuffer.https.html

Enable keyboard shortcuts

This test has a WPT meta file that disables it given conditions:
- (os == "android") or release_or_beta : This is blocked on DocumentChannel process switching support for Android
This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audioworklet-interface/audioworklet-postmessage-sharedarraybuffer.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <title>

      Test passing SharedArrayBuffer to an AudioWorklet

    </title>

    <script src="/resources/testharness.js"></script>

    <script src="/resources/testharnessreport.js"></script>

    <script src="/webaudio/resources/audit.js"></script>

  </head>

  <body>

    <script id="layout-test-code">

      let audit = Audit.createTaskRunner();

      let context = new AudioContext();

      let filePath = 'processors/sharedarraybuffer-processor.js';

      audit.define(

          'Test postMessage from AudioWorkletProcessor to AudioWorkletNode',

          (task, should) => {

            let workletNode =

                new AudioWorkletNode(context, 'sharedarraybuffer-processor');

            // After it is created, the worklet will send a new

            // SharedArrayBuffer to the main thread.

//

            // The worklet will then wait to receive a message from the main

            // thread.

//

            // When it receives the message, it will check whether it is a

            // SharedArrayBuffer, and send this information back to the main

            // thread.

            workletNode.port.onmessage = (event) => {

              let data = event.data;

              switch (data.state) {

                case 'created':

                  should(

                      data.sab instanceof SharedArrayBuffer,

                      'event.data.sab from worklet is an instance of SharedArrayBuffer')

                      .beTrue();

                  // Send a SharedArrayBuffer back to the worklet.

                  let sab = new SharedArrayBuffer(8);

                  workletNode.port.postMessage(sab);

                  break;

                case 'received message':

                  should(data.isSab, 'event.data from main thread is an instance of SharedArrayBuffer')

                      .beTrue();

                  task.done();

                  break;

                default:

                  should(false,

                         `Got unexpected message from worklet: ${data.state}`)

                      .beTrue();

                  task.done();

                  break;

};

            workletNode.port.onmessageerror = (event) => {

              should(false, 'Got messageerror from worklet').beTrue();

              task.done();

};

});

      context.audioWorklet.addModule(filePath).then(() => {

        audit.run();

});

    </script>

  </body>

</html>