File: enumerateDevices-permissions-policy.https.html

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<!DOCTYPE html>
<head>
  <title>
    Test permissions policy on enumerateDevices() after getUserMedia()
  </title>
  <link rel="help" href="https://w3c.github.io/mediacapture-output/#privacy-obtaining-consent">
  <meta charset=utf-8>
<body>
  <p class="instructions">If prompted, <strong>please allow</strong> access to
    a microphone device.</p>
  <script src="/resources/testharness.js"></script>
  <script src="/resources/testharnessreport.js"></script>
  <script src="/common/get-host-info.sub.js"></script>
  <script src="/permissions-policy/resources/permissions-policy.js"></script>
  <script>
'use strict';

promise_test(async () => {
  const frame = document.createElement('iframe');
  frame.allow = "speaker-selection 'none'"
  const promise_load = new Promise(r => frame.onload = r);
  document.body.appendChild(frame);
  await promise_load;

  const fDevices = frame.contentWindow.navigator.mediaDevices;
  await fDevices.getUserMedia({ audio: true });
  const list = await fDevices.enumerateDevices();
  const outputDevicesList = list.filter(({kind}) => kind == "audiooutput");
  assert_equals(outputDevicesList.length, 0, "number of output devices.");
}, "permissions policy on enumerateDevices() after getUserMedia()");
  </script>
</body>