testing/web-platform/tests/webusb/usbDevice-worker.https.html

   1 <!DOCTYPE html>
   2 <script src="/resources/testharness.js"></script>
   3 <script src="/resources/testharnessreport.js"></script>
   4 <script src="/webusb/resources/fake-devices.js"></script>
   5 <script src="/webusb/resources/usb-helpers.js"></script>
   6 <script>
   7 'use strict';
   8
   9 async function connectInWorker() {
  10   let worker = new Worker('/webusb/resources/open-in-worker.js');
  11   let opened = false;
  12
  13   await navigator.usb.test.attachToContext(worker);
  14   function nextWorkerMessage() {
  15     return new Promise(resolve => worker.addEventListener(
  16         'message', e => resolve(e.data)));
  17   }
  18   worker.postMessage({ type: 'Ready' });
  19
  20   assert_equals('Ready', (await nextWorkerMessage()).type);
  21   let fakeDevice = navigator.usb.test.addFakeDevice(fakeDeviceInit);
  22   let closedPromise = new Promise(resolve => fakeDevice.onclose = resolve)
  23       .then(() => assert_true(opened));
  24
  25   assert_equals('Success', (await nextWorkerMessage()).type);
  26   opened = true;
  27   return { worker, closedPromise };
  28 }
  29
  30 usb_test(async () => {
  31   let { worker, closedPromise } = await connectInWorker();
  32   worker.terminate();
  33   await closedPromise;
  34 }, 'terminating worker disconnects device.');
  35 </script>