android.bluetooth.BluetoothGattCallback Java Examples

@Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        device = getIntent().getParcelableExtra("device");
        setContentView(R.layout.activity_main);
        assignViews();
        initViews();
        //连接配置，举个例随意配置两项
        ConnectionConfiguration config = new ConnectionConfiguration();
        config.setConnectTimeoutMillis(10000);
        config.setRequestTimeoutMillis(1000);
        config.setAutoReconnect(false);
//        connection = EasyBLE.getInstance().connect(device, config, observer);//回调监听连接状态，设置此回调不影响观察者接收连接状态消息
        connection = EasyBLE.getInstance().connect(device, config);//观察者监听连接状态  
        connection.setBluetoothGattCallback(new BluetoothGattCallback() {
            @Override
            public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
                Log.d("EasyBLE", "原始写入数据：" + StringUtils.toHex(characteristic.getValue()));
            }
        });
    }
 

@SuppressWarnings("PMD.CompareObjectsWithEquals")
public void execute(BluetoothGattCallback callback) {
    NeatleLogger.d("Execute " + callback);
    boolean wasIdle;
    synchronized (lock) {
        wasIdle = currentCallback == DO_NOTHING_CALLBACK;
        if (currentCallback == callback || queue.contains(callback)) {
            NeatleLogger.d("Restarting " + callback);
        } else {
            NeatleLogger.d("Queueing up " + callback);
            queue.add(callback);
        }
    }
    if (wasIdle && areServicesDiscovered()) {
        resume();
    } else {
        connect();
    }
}
 

@Test
    public void onServicesDiscoveredCharacteristicIndicateTest() throws Exception {
        BluetoothGattCallback callback = connectAndGetCallback();

        BluetoothGattService service = mock(BluetoothGattService.class);
        when(service.getUuid()).thenReturn(SERVICE_UUID);
        when(gatt.getServices()).thenReturn(Arrays.asList(service));

        BluetoothGattCharacteristic characteristic = mock(BluetoothGattCharacteristic.class);
        when(characteristic.getProperties()).thenReturn(PROPERTY_INDICATE);
        when(service.getCharacteristics()).thenReturn(Arrays.asList(characteristic));

        callback.onServicesDiscovered(gatt, 0);

        List<UUID> expected = Arrays.asList(SERVICE_UUID);

//        assertThat(peripheral.getServices(), is(expected));
    }
 

@Test
   public void onServicesDiscoveredCharacteristicNotifyTest() throws Exception {
       BluetoothGattCallback callback = connectAndGetCallback();

       BluetoothGattService service = mock(BluetoothGattService.class);
       when(service.getUuid()).thenReturn(SERVICE_UUID);
       when(gatt.getServices()).thenReturn(Arrays.asList(service));

       BluetoothGattCharacteristic characteristic = mock(BluetoothGattCharacteristic.class);
       when(characteristic.getProperties()).thenReturn(PROPERTY_NOTIFY);
       when(service.getCharacteristics()).thenReturn(Arrays.asList(characteristic));

       callback.onServicesDiscovered(gatt, 0);

       List<UUID> expected = Arrays.asList(SERVICE_UUID);

//       assertThat(peripheral.getServices(), is(expected));
   }
 

@Test
public void setNotifyIndicationTest() throws Exception {
    BluetoothGattCallback callback = connectAndGetCallback();

    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, 0);
    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"),PROPERTY_INDICATE,0);
    BluetoothGattDescriptor descriptor = new BluetoothGattDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"),0);
    service.addCharacteristic(characteristic);
    characteristic.addDescriptor(descriptor);

    when(gatt.getServices()).thenReturn(Arrays.asList(service));
    callback.onConnectionStateChange(gatt, GATT_SUCCESS, STATE_CONNECTED);

    peripheral.setNotify(characteristic, true);
    verify(gatt).setCharacteristicNotification(characteristic, true);
    assertEquals(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE[0], descriptor.getValue()[0]);
    assertEquals(BluetoothGattDescriptor.ENABLE_INDICATION_VALUE[1], descriptor.getValue()[1]);
    verify(gatt).writeDescriptor(descriptor);

    callback.onDescriptorWrite(gatt, descriptor, 0);
    verify(peripheralCallback).onNotificationStateUpdate(peripheral, characteristic, 0);
}
 

@Test
public void setNotifyNotificationTest() throws Exception {
    BluetoothGattCallback callback = connectAndGetCallback();
    callback.onConnectionStateChange(gatt, GATT_SUCCESS, STATE_CONNECTED);

    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, 0);
    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"),PROPERTY_NOTIFY,0);
    BluetoothGattDescriptor descriptor = new BluetoothGattDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"),0);
    service.addCharacteristic(characteristic);
    characteristic.addDescriptor(descriptor);

    when(gatt.getServices()).thenReturn(Arrays.asList(service));

    peripheral.setNotify(characteristic, true);
    verify(gatt).setCharacteristicNotification(characteristic, true);
    assertEquals(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE[0], descriptor.getValue()[0]);
    assertEquals(BluetoothGattDescriptor.ENABLE_NOTIFICATION_VALUE[1], descriptor.getValue()[1]);
    verify(gatt).writeDescriptor(descriptor);

    callback.onDescriptorWrite(gatt, descriptor, 0);
    verify(peripheralCallback).onNotificationStateUpdate(peripheral, characteristic, 0);
}
 

@Test
public void setNotifyDisableTest() throws Exception {
    BluetoothGattCallback callback = connectAndGetCallback();
    callback.onConnectionStateChange(gatt, GATT_SUCCESS, STATE_CONNECTED);

    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, 0);
    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"),PROPERTY_NOTIFY,0);
    BluetoothGattDescriptor descriptor = new BluetoothGattDescriptor(UUID.fromString("00002902-0000-1000-8000-00805f9b34fb"),0);
    service.addCharacteristic(characteristic);
    characteristic.addDescriptor(descriptor);

    when(gatt.getServices()).thenReturn(Arrays.asList(service));

    peripheral.setNotify(characteristic, false);
    verify(gatt).setCharacteristicNotification(characteristic, false);
    assertEquals(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE[0], descriptor.getValue()[0]);
    assertEquals(BluetoothGattDescriptor.DISABLE_NOTIFICATION_VALUE[1], descriptor.getValue()[1]);
    verify(gatt).writeDescriptor(descriptor);

    callback.onDescriptorWrite(gatt, descriptor, 0);

    verify(peripheralCallback).onNotificationStateUpdate(peripheral, characteristic, 0);
}
 

@SuppressWarnings("PMD.CompareObjectsWithEquals")
public void executeFinished(BluetoothGattCallback callback) {
    synchronized (lock) {
        if (callback == currentCallback) {
            this.currentCallback = DO_NOTHING_CALLBACK;
            NeatleLogger.d("Finished " + callback);
            handler.post(new Runnable() {
                @Override
                public void run() {
                    resume();
                }
            });
        } else {
            this.queue.remove(callback);
            NeatleLogger.d("Removed from queue " + callback);
        }
    }
}
 

@Override
public BluetoothGatt connect(P_NativeDeviceLayer device, Context context, boolean useAutoConnect, BluetoothGattCallback callback) {
    m_gattIsNull = false;
    m_explicitDisconnect = false;
    m_device.getManager().getPostManager().postToUpdateThreadDelayed(new Runnable()
    {
        @Override public void run()
        {
            if (!m_explicitDisconnect)
            {
                setToConnecting();
            }
        }
    }, 100);
    m_device.getManager().getPostManager().postToUpdateThreadDelayed(new Runnable()
    {
        @Override public void run()
        {
            if (!m_explicitDisconnect)
            {
                setToConnected();
            }
        }
    }, 250);
    return device.connect(context, useAutoConnect, callback);
}
 

@Test
public void queueTestRetryCommand() throws Exception {
    BluetoothGattCallback callback = connectAndGetCallback();
    callback.onConnectionStateChange(gatt, GATT_SUCCESS, STATE_CONNECTED);

    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, 0);
    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"),PROPERTY_READ,0);
    BluetoothGattCharacteristic characteristic2 = new BluetoothGattCharacteristic(UUID.fromString("00002A1E-0000-1000-8000-00805f9b34fb"),PROPERTY_READ,0);
    service.addCharacteristic(characteristic);
    service.addCharacteristic(characteristic2);
    when(gatt.readCharacteristic(characteristic)).thenReturn(true);
    when(gatt.getServices()).thenReturn(Arrays.asList(service));

    peripheral.readCharacteristic(characteristic);

    verify(gatt).readCharacteristic(characteristic);

    // Trigger bonding to start
    callback.onCharacteristicRead(gatt, characteristic, 5);

    Field field = BluetoothPeripheral.class.getDeclaredField("bondStateReceiver");
    field.setAccessible(true);
    BroadcastReceiver broadcastReceiver = (BroadcastReceiver) field.get(peripheral);

    Intent intent = mock(Intent.class);
    when(intent.getAction()).thenReturn(BluetoothDevice.ACTION_BOND_STATE_CHANGED);
    when(intent.getIntExtra(BluetoothDevice.EXTRA_BOND_STATE, BluetoothDevice.ERROR)).thenReturn(BOND_BONDED);
    when(intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE)).thenReturn(device);

    broadcastReceiver.onReceive(context, intent);

    ShadowLooper.runUiThreadTasksIncludingDelayedTasks();

    verify(gatt, times(2)).readCharacteristic(characteristic);
}
 

@Test
public void queueTestConsecutiveReadsNoResponse() throws Exception {
    BluetoothGattCallback callback = connectAndGetCallback();
    callback.onConnectionStateChange(gatt, GATT_SUCCESS, STATE_CONNECTED);

    BluetoothGattService service = new BluetoothGattService(SERVICE_UUID, 0);
    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"),PROPERTY_READ,0);
    BluetoothGattCharacteristic characteristic2 = new BluetoothGattCharacteristic(UUID.fromString("00002A1E-0000-1000-8000-00805f9b34fb"),PROPERTY_READ,0);
    service.addCharacteristic(characteristic);
    service.addCharacteristic(characteristic2);
    byte[] byteArray = new byte[] {0x01, 0x02, 0x03};
    characteristic.setValue(byteArray);
    characteristic2.setValue(byteArray);

    when(gatt.readCharacteristic(characteristic)).thenReturn(true);

    peripheral.readCharacteristic(characteristic);
    peripheral.readCharacteristic(characteristic2);

    verify(gatt).readCharacteristic(characteristic);
    verify(peripheralCallback, never()).onCharacteristicUpdate(peripheral, byteArray, characteristic, 0);
    verify(gatt, never()).readCharacteristic(characteristic2);
}
 

@Test
public void notifyTest() {
    BluetoothGattCallback callback = connectAndGetCallback();

    BluetoothGattCharacteristic characteristic = new BluetoothGattCharacteristic(UUID.fromString("00002A1C-0000-1000-8000-00805f9b34fb"), PROPERTY_INDICATE,0);
    peripheral.setNotify(characteristic, true);

    byte[] originalByteArray = new byte[]{0x01};
    characteristic.setValue(originalByteArray);
    callback.onCharacteristicChanged(gatt, characteristic);

    ArgumentCaptor<BluetoothPeripheral> captorPeripheral = ArgumentCaptor.forClass(BluetoothPeripheral.class);
    ArgumentCaptor<byte[]> captorValue = ArgumentCaptor.forClass(byte[].class);
    ArgumentCaptor<BluetoothGattCharacteristic> captorCharacteristic = ArgumentCaptor.forClass(BluetoothGattCharacteristic.class);
    ArgumentCaptor<Integer> captorStatus = ArgumentCaptor.forClass(Integer.class);
    verify(peripheralCallback).onCharacteristicUpdate(captorPeripheral.capture(), captorValue.capture(), captorCharacteristic.capture(), captorStatus.capture());

    byte[] value = captorValue.getValue();
    assertEquals(0x01, value[0]);  // Check if original value is returned and not the one in the characteristic
    assertNotEquals(value, originalByteArray);   // Check if the byte array has been copied
    assertEquals(peripheral, captorPeripheral.getValue());
    assertEquals(characteristic, captorCharacteristic.getValue());
    assertEquals(GATT_SUCCESS, (int) captorStatus.getValue() );
}
 

@Test
public void testStopWhileStillStarting() {
    final BluetoothGatt bluetoothGatt = Mockito.mock(BluetoothGatt.class, Answers.RETURNS_DEEP_STUBS);

    when(device.isConnected()).thenReturn(true);
    doAnswer(new Answer() {
        @Override
        public Object answer(InvocationOnMock invocationOnMock) {
            BluetoothGattCallback callback = invocationOnMock.getArgument(0);
            callback.onServicesDiscovered(bluetoothGatt, BluetoothGatt.GATT_SUCCESS);

            return null;
        }
    }).when(device).execute(Mockito.<BluetoothGattCallback>any());

    subscription.start();

    Robolectric.getForegroundThreadScheduler().pause();

    subscription.stop();
    subscription.start();

    Robolectric.getForegroundThreadScheduler().unPause();

    assertTrue(subscription.isStarted());
}
 

@Test
public void connectEmptyNode(){

    BluetoothDevice device = spy(Shadow.newInstanceOf(BluetoothDevice.class));
    Node node = createNode(device);

    Assert.assertEquals(Node.State.Idle, node.getState());
    node.connect(RuntimeEnvironment.application);

    TestUtil.execAllAsyncTask();

    verify(device).connectGatt(eq(RuntimeEnvironment.application), eq(false),
            any(BluetoothGattCallback.class));
    Assert.assertEquals(Node.State.Dead, node.getState());
}
 

@Override
public void onCharacteristicRead(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
    NeatleLogger.d("createCharacteristicRead");
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onCharacteristicRead(gatt, characteristic, status);
}
 

/**
 * open a connection with the device the returning connection is a shadow object that can be
 * queue with the mockito framework
 * @param c
 * @param b
 * @param callback
 * @return
 */
@Implementation
public BluetoothGatt connectGatt(Context c,boolean b,BluetoothGattCallback callback){
    mGattConnection = spy(Shadow.newInstanceOf(BluetoothGatt.class));
    BluetoothGattShadow shadowGatt = Shadow.extract(mGattConnection);
    shadowGatt.setGattCallBack(callback);
    shadowGatt.setServices(mServices);
    mGattConnection.connect();
    return mGattConnection;
}
 

@Override
public boolean openGatt() {
    checkRuntime();

    BluetoothLog.v(String.format("openGatt for %s", getAddress()));

    if (mBluetoothGatt != null) {
        BluetoothLog.e(String.format("Previous gatt not closed"));
        return true;
    }

    Context context = BluetoothUtils.getContext();
    BluetoothGattCallback callback = new BluetoothGattResponse(mBluetoothGattResponse);

    if (Version.isMarshmallow()) {
        mBluetoothGatt = mBluetoothDevice.connectGatt(context, false, callback, BluetoothDevice.TRANSPORT_LE);
    } else {
        mBluetoothGatt = mBluetoothDevice.connectGatt(context, false, callback);
    }

    if (mBluetoothGatt == null) {
        BluetoothLog.e(String.format("openGatt failed: connectGatt return null!"));
        return false;
    }

    return true;
}
 

private static BluetoothGatt connectGattApi21(final BluetoothDevice bluetoothDevice) {
    try {
        final Method method = bluetoothDevice.getClass().getMethod("connectGatt", Context.class, Boolean.TYPE, BluetoothGattCallback.class, Integer.TYPE);
        UserError.Log.d(TAG, "Trying connect with api21");
        return (BluetoothGatt) method.invoke(bluetoothDevice, null, mAutoConnect, getInstance(), TRANSPORT_LE);
    } catch (Exception e) {
        UserError.Log.d(TAG, "Connection failed: " + e);
        return bluetoothDevice.connectGatt(xdrip.getAppContext(), mAutoConnect, getInstance());
    }
}
 

@RequiresApi(api = Build.VERSION_CODES.O)
private static BluetoothGatt connectGattApi26(final BluetoothDevice bluetoothDevice, final int type) {
    try {
        final Method method = bluetoothDevice.getClass().getMethod("connectGatt", Context.class, Boolean.TYPE, BluetoothGattCallback.class, Integer.TYPE, Boolean.TYPE, Integer.TYPE, Handler.class);
        UserError.Log.d(TAG, "Trying reconnect");
        return (BluetoothGatt) method.invoke(bluetoothDevice, null, mAutoConnect, getInstance(), TRANSPORT_LE, Boolean.TRUE, type, null);
    } catch (Exception e) {
        UserError.Log.d(TAG, "Received exception: " + e + " falling back");
        return bluetoothDevice.connectGatt(xdrip.getAppContext(), mAutoConnect, getInstance(), TRANSPORT_LE, type);
    }
}
 

private static boolean connectUsingReflection(BluetoothGatt bluetoothGatt, BluetoothGattCallback bluetoothGattCallback,
                                              boolean autoConnect)
        throws NoSuchMethodException, InvocationTargetException, IllegalAccessException, NoSuchFieldException {
    RxBleLog.v("Connecting using reflection");
    setAutoConnectValue(bluetoothGatt, autoConnect);
    Method connectMethod = bluetoothGatt.getClass().getDeclaredMethod("connect", Boolean.class, BluetoothGattCallback.class);
    connectMethod.setAccessible(true);
    return (Boolean) (connectMethod.invoke(bluetoothGatt, true, bluetoothGattCallback));
}
 

@Override
public void onReadRemoteRssi(BluetoothGatt gatt, int rssi, int status) {
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onReadRemoteRssi(gatt, rssi, status);
}
 

private BluetoothGatt connectGattCompat(BluetoothGattCallback bluetoothGattCallback, BluetoothDevice device, boolean autoConnect) {
    RxBleLog.v("Connecting without reflection");

    if (Build.VERSION.SDK_INT >= 23 /* Build.VERSION_CODES.M */) {
        return device.connectGatt(context, autoConnect, bluetoothGattCallback, TRANSPORT_LE);
    } else {
        return device.connectGatt(context, autoConnect, bluetoothGattCallback);
    }
}
 

@Test
public void connectNodeWithDebug(){

    BluetoothDevice device = spy(Shadow.newInstanceOf(BluetoothDevice.class));
    BluetoothDeviceShadow shadowDevice = Shadow.extract(device);

    BluetoothGattService debugService = new BluetoothGattService(BLENodeDefines.Services
            .Debug.DEBUG_SERVICE_UUID,BluetoothGattService.SERVICE_TYPE_PRIMARY);
    debugService.addCharacteristic(
            new BluetoothGattCharacteristic(BLENodeDefines.Services.Debug.DEBUG_STDERR_UUID,
                    BluetoothGattCharacteristic.PERMISSION_READ |
                            BluetoothGattCharacteristic.PERMISSION_WRITE,
                    BluetoothGattCharacteristic.PROPERTY_READ | BluetoothGattCharacteristic
                            .PROPERTY_NOTIFY));
    debugService.addCharacteristic(
            new BluetoothGattCharacteristic(BLENodeDefines.Services.Debug.DEBUG_TERM_UUID,
                    BluetoothGattCharacteristic.PERMISSION_READ |
                            BluetoothGattCharacteristic.PERMISSION_WRITE,
                    BluetoothGattCharacteristic.PROPERTY_READ | BluetoothGattCharacteristic
                            .PROPERTY_NOTIFY)
    );

    shadowDevice.addService(debugService);

    Node node = createNode(device);
    Assert.assertEquals(Node.State.Idle, node.getState());
    node.connect(RuntimeEnvironment.application);

    TestUtil.execAllAsyncTask();

    verify(device).connectGatt(eq(RuntimeEnvironment.application), eq(false),
            any(BluetoothGattCallback.class));
    Assert.assertEquals(Node.State.Connected, node.getState());
    Assert.assertTrue(node.getDebug()!=null);
}
 

private static BluetoothGatt connectGattApi21(final BluetoothDevice bluetoothDevice) {
    try {
        final Method method = bluetoothDevice.getClass().getMethod("connectGatt", Context.class, Boolean.TYPE, BluetoothGattCallback.class, Integer.TYPE);
        UserError.Log.d(TAG, "Trying connect with api21");
        return (BluetoothGatt) method.invoke(bluetoothDevice, null, mAutoConnect, getInstance(), TRANSPORT_LE);
    } catch (Exception e) {
        UserError.Log.d(TAG, "Connection failed: " + e);
        return bluetoothDevice.connectGatt(xdrip.getAppContext(), mAutoConnect, getInstance());
    }
}
 

@Override
public void onDescriptorRead(BluetoothGatt gatt, BluetoothGattDescriptor descriptor, int status) {
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onDescriptorRead(gatt, descriptor, status);
}
 

@Override
public void onCharacteristicChanged(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic) {
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onCharacteristicChanged(gatt, characteristic);

    notifyCharacteristicChange(CommandResult.createCharacteristicChanged(characteristic));
}
 

@Override
public void onReliableWriteCompleted(BluetoothGatt gatt, int status) {
    NeatleLogger.d("onReliableWriteCompleted");
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onReliableWriteCompleted(gatt, status);
}
 

@Override
public void onCharacteristicWrite(BluetoothGatt gatt, BluetoothGattCharacteristic characteristic, int status) {
    NeatleLogger.d("onCharacteristicWrite " + status);
    BluetoothGattCallback target;
    synchronized (lock) {
        target = currentCallback;
    }
    target.onCharacteristicWrite(gatt, characteristic, status);
}
 

private void resume() {
    BluetoothGattCallback target;
    BluetoothGatt targetGatt;
    boolean doResume;

    synchronized (lock) {
        if (currentCallback == DO_NOTHING_CALLBACK) {
            BluetoothGattCallback newCallback = queue.poll();
            if (newCallback == null) {
                if (changeListeners.isEmpty()) {
                    disconnectOnIdle();
                }
                return;
            }
            currentCallback = newCallback;
        }
        target = currentCallback;
        doResume = areServicesDiscovered();
        targetGatt = this.gatt;
    }

    if (doResume) {
        NeatleLogger.i("Resuming with " + target);
        currentCallback.onServicesDiscovered(targetGatt, BluetoothGatt.GATT_SUCCESS);
    } else {
        NeatleLogger.i("Will resume after services are discovered with " + target);
        connect();
    }
}
 

private void prepareConnect(boolean discoverServiceSuccess) {
  when(bluetoothDevice.connectGatt(any(), anyBoolean(), any())).thenReturn(bluetoothGatt);
  when(bluetoothGatt.discoverServices()).thenReturn(discoverServiceSuccess);

  connectTestObserver = corePeripheral.connect().test();

  ArgumentCaptor<BluetoothGattCallback> gattCaptor =
      ArgumentCaptor.forClass(BluetoothGattCallback.class);
  verify(bluetoothDevice).connectGatt(any(), anyBoolean(), gattCaptor.capture());

  bluetoothGattCallback = gattCaptor.getValue();
}