Android 使用FirebaseAuth对活动进行仪器单元测试

我正在尝试使用FirebaseAuth为活动设置和工具性单元测试。当我运行应用程序时，一切正常。问题在于仪器单元测试的设置

活动：

测试：

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我认为你对applicationID的问题就是包名。您还应该将用于测试的应用程序Id添加到Firebase项目帐户

它有后缀：test

一般来说，它看起来像：

[ApplicationID]。测试

i、 e

com.apipas.android.hello.test

发布应用程序ID为

com.apipas.android.hello

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我希望这会对您有所帮助。

检查您是否真的调用FirebaseApp.initializeAppInstrumentationRegistry.getContext；在设置中。我想你从来没有因为那件事被打过电话condition@MaherAbuthraa我以前已经检查过了。甚至试图无条件地添加它。。。。有人打电话给你，你找到解决办法了吗？我也面临同样的问题

public final class GoogleSignInActivity extends AppCompatActivity{
  @Override
    protected void onCreate(final Bundle savedInstanceState) {
       ...
       if (FirebaseApp.getApps(this).isEmpty()) {
        FirebaseApp.initializeApp(this);
       }

       mFirebaseAuth = FirebaseAuth.getInstance();
  }
}

@RunWith(AndroidJUnit4.class)
public class GoogleSignInActivityIntegrationTest extends UiTestPrerequesites {

@Rule
public final ActivityTestRule<GoogleSignInActivity> mActivityRule = new ActivityTestRule<>(
        GoogleSignInActivity.class, false, true);

@Before
public void setup(){
    if (FirebaseApp.getApps(InstrumentationRegistry.getContext()).isEmpty()) {
        FirebaseApp.initializeApp(InstrumentationRegistry.getContext());
    }
}   

@Test
@SmallTest
public void implements_GoogleSignInWorkerFragment_GoogleSignInUiChangesListener() {
    //FirebaseApp.initializeApp(InstrumentationRegistry.getContext()); (this doesn't help)
    assertThat(mActivityRule .getActivity(),
                notNullValue());
}

Caused by: java.lang.IllegalStateException: Default FirebaseApp is not initialized in this process com.twofortyfouram.ui.test. Make sure to call FirebaseApp.initializeApp(Context) first.