Firebase 身份验证单元测试错误 No Firebase App

Posted 2023-02-23

【中文标题】Firebase 身份验证单元测试错误 No Firebase App

【英文标题】：Firebase auth unit testing error No Firebase App

【发布时间】：2020-12-17 10:28:34

【问题描述】：

我正在尝试测试我的 firebase auth 方法。身份验证方法是登录、注销、注册等。 这是我要执行单元测试的方法。

我收到错误No Firebase App '[DEFAULT]' has been created - call Firebase.initializeApp()

我尝试在测试main 方法中初始化Firebase.initializeApp，它也不起作用。

 class MockUserRepository extends Mock implements AuthService 
  final MockFirebaseAuth auth;
  MockUserRepository(this.auth);
 
 class MockFirebaseAuth extends Mock implements FirebaseAuth
 class MockFirebaseUser extends Mock implements FirebaseUser
 class MockFirebase extends Mock implements Firebase
 void main() 
   MockFirebase firebase=MockFirebase();
   MockFirebaseAuth _auth = MockFirebaseAuth();
   BehaviorSubject<MockFirebaseUser> _user = BehaviorSubject<MockFirebaseUser>();
   when(_auth.onAuthStateChanged).thenAnswer((_)
      return _user;
     );
   AuthService _repo = AuthService.instance(auth: _auth);
   group('user repository test', ()
       when(_auth.signInWithEmailAndPassword(email: "email",password: "password")).thenAnswer((_)async
  _user.add(MockFirebaseUser());
);
when(_auth.signInWithEmailAndPassword(email: "mail",password: "pass")).thenThrow(()
  return null;
);
test("sign in with email and password", () async 
  var signedIn = await _repo.onLogin(email:"[e-mail]",password: "123456");
  expect(signedIn, isNotNull);
  expect(_repo.status, Status.Authenticated);
);

test("sing in fails with incorrect email and password",() async 
  var signedIn = await _repo.onLogin(email:"[e-mail]",password: "666666");
  expect(signedIn, false);
  expect(_repo.status, Status.Unauthenticated);
);

test('sign out', ()async
  await _repo.signout();
  expect(_repo.status, Status.Unauthenticated);
 );
);
 

AuthService 类

    enum Status  Uninitialized, Authenticated, Authenticating, 
    Unauthenticated 

   class AuthService with ChangeNotifier 
     FirebaseAuth auth = FirebaseAuth.instance;
     FirebaseUser _user;

    FirebaseUser get user => _user;

    set user(FirebaseUser value) 
      _user = value;
    

    Status _status = Status.Uninitialized;

    Future<User> getCurrentUser() async 
      User currentUser;
      await FirebaseAuth.instance.authStateChanges().listen((User user) 
      currentUser = user;
      );
      return currentUser;
     
    AuthService();
    AuthService.instance(this.auth) 
       //    auth.onAuthStateChanged.listen((user) 
      //      onAuthStateChanged(user);
      //    );
      

     Future<void> signout() async 
     await auth.signOut();
       

     Future<User> createAccount(String email, String password) async 
        try 
           UserCredential userCredential = await 
                  auth.createUserWithEmailAndPassword(
             email: email, password: password);
            return userCredential != null ? userCredential.user : null;
           on FirebaseAuthException catch (e) 
           showToast(e.message);
           catch (e) 
          log(e.toString());
           return null;
          
       

     Future<User> onLogin(String email, String password) async 
      try 
        User user;
           await auth
        .signInWithEmailAndPassword(email: email, password: password)
      .then((value) 
        showToast("Login sucessful");
       user = value != null ? value.user : null;
      );
      return user;
      on FirebaseAuthException catch (e) 
      showToast(e.message);
     
    

    sendResetPassword(String email) async 
      bool isSent = false;
      try 
         await auth.sendPasswordResetEmail(email: email).then((value) 
           showToast("Reset password email sent");
            isSent = true;
        );
        return isSent;
        on FirebaseAuthException catch (e) 
           showToast(e.message);
    
  

    Future<void> onAuthStateChanged(FirebaseUser user) async 
     if (user == null) 
       _status = Status.Unauthenticated;
         else 
        _user = user;
        _status = Status.Authenticated;
       
       notifyListeners();
     

     Status get status => _status;

     set status(Status value) 
        _status = value;
        
   

【问题讨论】：

哪一行代码导致了这个错误？

@DougStevenson AuthService _repo = AuthService.instance(auth: _auth); 这行请帮忙。我还添加了我的AuthService 类。

【参考方案1】：

看看他们如何直接在 firebase_auth 代码中进行测试：https://github.com/FirebaseExtended/flutterfire/tree/master/packages/firebase_auth/firebase_auth/test

在main 方法的开头调用setupFirebaseAuthMocks（您可以从here 改编代码）方法并在setUpAll 方法中调用await Firebase.initializeApp();。

【讨论】：

好东西，谢谢。为了澄清起见，您可以在那里选择mock_auth.dart 文件并将其带到您的测试套件并使用它。

【参考方案2】：

Firebase.initializeApp() 是解决此问题的方法。我很确定。尝试在文件中调用它，您正在它们的 initState() 中执行所有这些功能。

【讨论】：

我已经尝试在我的测试文件中 Firebase.initializeApp() 它也没有工作。