@Before
  public void setUp() throws Exception {
    DependencyInjector.resetForIntegrationTesting(
        InstrumentationRegistry.getInstrumentation().getTargetContext());
    mAccountDb = DependencyInjector.getAccountDb();

    initMocks(this);
    DaggerInjector.init(new MockModule());
  }
Unit test for authenticator activity (part/shard 2).
javatests/com/google/android/apps/authenticator/AuthenticatorActivityPart2Test.java