audioworkletprocessor-promises.https.html

Enable keyboard shortcuts

This WPT test may be referenced by the following Test IDs:
- /webaudio/the-audio-api/the-audioworklet-interface/audioworkletprocessor-promises.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<html>

  <head>

    <title>

      Test micro task checkpoints in AudioWorkletGlobalScope

    </title>

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

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

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

    <meta charset=utf-8>

  </head>

  <body>

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

        promise_test(async () => {

          const context = new AudioContext();

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

          await context.audioWorklet.addModule(filePath);

          await context.suspend();

          let node1 = new AudioWorkletNode(context, 'promise-processor');

          let node2 = new AudioWorkletNode(context, 'promise-processor');

          // Connecting to the destination is not strictly necessary in theory,

          // but see

          // https://bugs.chromium.org/p/chromium/issues/detail?id=1045926

          // for why it is in practice.

          node1.connect(node2).connect(context.destination);

          await context.resume();

          // The second node is the one that is going to receive the message,

          // per spec: it is the second that will be processed, each time.

          const e = await new Promise((resolve) => {

            node2.port.onmessage = resolve;

});

          context.close();

          assert_equals(e.data, "ok",

                      `Microtask checkpoints are performed

                       in between render quantum`);

        }, "test");

    </script>

  </body>

</html>