chromium/third_party/blink/web_tests/wpt_internal/bluetooth/server/connect/connect-disconnected-connect.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(t => {
   return setBluetoothFakeAdapter('DisconnectingHeartRateAdapter')
    .then(() => requestDeviceWithTrustedClick({
      filters: [{services: ['heart_rate']}],
      optionalServices: [request_disconnection_service_uuid]
    }))
    .then(device => {
      return device.gatt.connect()
        .then(gattServer => get_request_disconnection(gattServer))
        .then(requestDisconnection => {
          let disconnected = eventPromise(device, 'gattserverdisconnected');
          // This write causes the device to disconnect.
          return Promise.all([requestDisconnection(),
                              disconnected]);
        }).then(() => {
          return device.gatt.connect()
            .then(gattServer => gattServer.getPrimaryService('heart_rate'))
            .then(service => service.getCharacteristic('body_sensor_location'))
            .then(char => char.readValue())
            .then(value => assert_array_equals(new Uint8Array(value.buffer), [1]));
        });
    });
 }, 'A device that gets disconnected can re-connect.');
</script>