SharedWorker-extendedLifetime.html

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This test has a WPT meta file that expects 1 subtest issues.
This WPT test may be referenced by the following Test IDs:
- /workers/SharedWorker-extendedLifetime.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

<title>SharedWorker extendedLifetime</title>

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

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

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

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

<script>

/**

 * Connects to a SharedWorker and performs a single message exchange.

 * Used both in the main window and in the popup via execute_script.

*/

const connectAndOperate = async (url, data) => {

  const worker = new SharedWorker(url, {extendedLifetime: true});

  worker.port.start();

  return new Promise(resolve => {

    const listener = event => {

      if (event.data.reqid === data.reqid) {

        worker.port.removeEventListener('message', listener);

        resolve(event.data);

};

    worker.port.addEventListener('message', listener);

    worker.port.postMessage(data);

});

};

promise_test(async t => {

  const uuid = token();

  const worker_url = '/workers/resources/shared-worker-memory.js?' + token();

  const ctx = new RemoteContext(token());

  const popup = window.open(remoteExecutorUrl(ctx.context_id));

  t.add_cleanup(() => popup.close());

  // 1. Store data from the popup side.

  const popup_response = await ctx.execute_script(connectAndOperate, [

    worker_url, {op: 'store', data: uuid, reqid: 1}

]);

  assert_equals(popup_response.status, 'OK');

  popup.close();

  // Wait to ensure the worker survives across the client's disappearance.

  await new Promise(resolve => setTimeout(resolve, 1000));

  // 2. Load data from the main window side.

  const response = await connectAndOperate(worker_url, {op: 'load', reqid: 2});

  assert_equals(response.status, 'OK');

  assert_equals(response.data, uuid);

}, "SharedWorker lifetime should be extended with extendedLifetime");

</script>