restart-scan-finds-new-device.https.html

<!DOCTYPE html>
<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="/bluetooth/resources/bluetooth-test.js"></script>
<script src="/bluetooth/resources/bluetooth-fake-devices.js"></script>
<script>
'use strict';
bluetooth_test(() => {
  setBluetoothManualChooser(true);

  // Open the chooser, looking for a Heart Rate device.
  let requestDevicePromise =
      setBluetoothFakeAdapter('SecondDiscoveryFindsHeartRateAdapter')
          .then(
              () => requestDeviceWithTrustedClick(
                  {filters: [{services: ['heart_rate']}]}));

  // The adapter finds nothing, so we just see discovery start and stop.
  return getBluetoothManualChooserEvents(3)
      .then(events => {
        assert_array_equals(events, [
          'chooser-opened(https://web-platform.test:8444)',
          'discovering',
          'discovery-idle',
        ]);

        // On the second discovery, the adapter finds the Heart Rate device.
        sendBluetoothManualChooserEvent('rescan', '');
        return getBluetoothManualChooserEvents(3);
      })
      .then(events => {
        assert_equals(events.length, 3, events);
        assert_equals(events[0], 'discovering', 'events[0]');
        let idsByName = new AddDeviceEventSet();
        idsByName.assert_add_device_event(events[1]);
        assert_true(idsByName.has('Heart Rate Device'));
        assert_equals(events[2], 'discovery-idle');

        // Select it and let the test complete.
        sendBluetoothManualChooserEvent(
            'selected', idsByName.get('Heart Rate Device'));
        return requestDevicePromise;
      })
      .then(device => assert_equals(device.name, 'Heart Rate Device'));
}, 'The chooser can restart the BT scan.');
</script>
chromium/third_party/blink/web_tests/wpt_internal/bluetooth/requestDevice/chooser/restart-scan-finds-new-device.https.html
