usbDevice-worker.https.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:
- /webusb/usbDevice-worker.https.html - WPT Dashboard Interop Dashboard

<!DOCTYPE html>

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

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

<script src="/resources/test-only-api.js"></script>

<script src="/webusb/resources/fake-devices.js"></script>

<script src="/webusb/resources/usb-helpers.js"></script>

<script>

'use strict';

async function connectInWorker() {

  let worker = new Worker('/webusb/resources/open-in-worker.js');

  let opened = false;

  await navigator.usb.test.attachToContext(worker);

  function nextWorkerMessage() {

    return new Promise(resolve => worker.addEventListener(

        'message', e => resolve(e.data)));

  worker.postMessage({ type: 'ConnectEvent' });

  assert_equals('Ready', (await nextWorkerMessage()).type);

  let fakeDevice = navigator.usb.test.addFakeDevice(fakeDeviceInit);

  let closedPromise = new Promise(resolve => fakeDevice.onclose = resolve)

      .then(() => assert_true(opened));

  assert_equals('Success', (await nextWorkerMessage()).type);

  opened = true;

  return { worker, closedPromise };

usb_test(async () => {

  let { worker, closedPromise } = await connectInWorker();

  worker.terminate();

  await closedPromise;

}, 'terminating worker disconnects device.');

</script>