clients-matchall.https.html

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This WPT test may be referenced by the following Test IDs:
- /speculation-rules/prerender/clients-matchall.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>Service Worker: Clients.matchAll with a prerender page</title>

<meta name="timeout" content="long">

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

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

<script src="/common/utils.js"></script>

<script src="/service-workers/service-worker/resources/test-helpers.sub.js"></script>

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

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

<body>

<script>

setup(() => assertSpeculationRulesIsSupported());

promise_test(async t => {

  const uid = token();

  const workerUrl = 'resources/clients-matchall-service-worker.js';

  const pageUrl = `resources/prerendered-page.html?uid=${uid}`;

  // Start a service worker.

  const registration =

      await service_worker_unregister_and_register(t, workerUrl, workerUrl);

  t.add_cleanup(_ => registration.unregister());

  // Observe the message from a prerendered page.

  const bc = new PrerenderChannel('prerender-channel', uid);

  t.add_cleanup(_ => bc.close());

  const messagePromise = new Promise(resolve => {

    bc.addEventListener('message', e => {

      resolve(e.data);

    }, {once:true});

});

  startPrerendering(pageUrl);

  const result = await messagePromise;

  assert_equals(result, 'prerender success');

  // The service worker returns the list of client urls exposed by

  // Clients#matchAll().

  const message = await new Promise(resolve => {

    navigator.serviceWorker.onmessage = resolve;

    get_newest_worker(registration).postMessage('invoke clients.matchAll()');

});

  const clients = message.data;

  // Don't use `assert_array_equals` as the clients may contain unrelated pages.

  assert_true(clients.includes(window.location.href));

  assert_true(clients.includes(new URL(pageUrl, location).toString()));

}, 'The client urls (including a prerender page) are exposed by ' +

   'Clients#matchAll()');

</script>