Flutter Unit Test - Expect difference between SuccessState<dynamic> and SuccessState<NetworkResponse>

user_15275654 0
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I'm trying to make unit test for my app but I get some issues with the expect() function.

This is my test:

test('User should register.', () async {
  final _response = await _api.register(mockSuccessfullRegisterUser);
  mockSuccessfullLoginUser = User(email: mockSuccessfullRegisterUser.email, password: mockSuccessfullRegisterUser.password);
  print(mockSuccessfullLoginUser.email);
  expect(_response.runtimeType, SuccessWithTokenResponseState);
});

My _response can return multiple types of responses like: SuccessWithTokenState, ErrorState, … The expect function gives me this error:

TestFailure (Expected: Type:<SuccessWithTokenResponseState<dynamic>>
  Actual: Type:<SuccessWithTokenResponseState<NetworkResponse>>
)

Shouldn't SuccessWithTokenResponseState be equal to SuccessWithTokenResponseState?

dart flutter testing unit-testing types
2 Answers

When you use a generic type without additional type it's fallback to Type<dynamic> try to use the correct type that you expect

expect(_response.runtimeType, SuccessWithTokenResponseState<NetworkResponse>);
user_29033620

I found the answer!

expect(_response.runtimeType is SuccessWithTokenResponseState, true);
user_152756540
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