speculation-rules/prerender/restriction-notification.https.html

<!DOCTYPE html>
<!--
TODO(https://crbug.com/1198110): Add the following tests:
* Test the deferral of the promise if it is used during prerendering.
* Test Notification.permission returns "default" synchronously.
-->
<title>Access to the Notification API is allowed after the prerendering state
  changed </title>
<meta name="timeout" content="long">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/resources/testdriver.js"></script>
<script src="/resources/testdriver-vendor.js"></script>
<script src="/common/utils.js"></script>
<script src="resources/utils.js"></script>
<body>
<script>

setup(() => assertSpeculationRulesIsSupported());

promise_test(async t => {
  const uid = token();
  const bc = new PrerenderChannel('test-channel', uid);
  t.add_cleanup(_ => bc.close());

  await test_driver.set_permission({name: 'notifications'}, 'granted', true);
  const gotMessage = new Promise(resolve => {
    bc.addEventListener('message', e => {
      resolve(e.data);
    }, {
      once: true
    });
  });
  const url = `resources/notification.html?uid=${uid}`;
  window.open(url, '_blank', 'noopener');

  const result = await gotMessage;
  assert_equals(result, 'notification showed');
}, `it is allowed to access the notification API in the prerenderingchange
    event`);

</script>
</body>