chromium/third_party/blink/web_tests/external/wpt/webaudio/the-audio-api/the-audioworklet-interface/extended-audioworkletnode-with-parameters.https.html

<!doctype html>
<title>Test AudioWorkletNode subclass with parameters</title>
<script src=/resources/testharness.js></script>
<script src=/resources/testharnessreport.js></script>
<script>
class Extended extends AudioWorkletNode {}

const modulePath = 'processors/gain-processor.js';

promise_test(async () => {
  const context = new AudioContext();
  await context.audioWorklet.addModule(modulePath);
  const node = new Extended(context, 'gain');
  assert_equals(Object.getPrototypeOf(node), Extended.prototype);
});
</script>