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我正在使用 Freezed 在我的 Flutter 应用程序中生成密封数据类。我需要测试它，但我不知道该怎么做。任何想法？这是状态：

@freezed
abstract class LoginState with _$LoginState {
  const factory LoginState({
    @required Email email,
    @required Password password,
    @required bool isLoading,
    @required bool showErrors,
    @required Option<Either<AuthFailure, Unit>> failureOrSuccessOption,
  }) = _LoginState;

  factory LoginState.initial() => LoginState(
        failureOrSuccessOption: none(),
        isLoading: false,
        showErrors: false,
        email: Email(''),
        password: Password(''),
      );
}

这是我一直在尝试运行的测试：

import 'package:dartz/dartz.dart';
import 'package:exchangecontrol/auth/application/login_cubit/login_cubit.dart';
import 'package:exchangecontrol/auth/domain/auth_repository.dart';
import 'package:mockito/mockito.dart';
import 'package:flutter_test/flutter_test.dart';

class MockLoginWithEmailAndPassword extends Mock implements AuthRepository {}

void main() {
  LoginCubit loginCubit;
  MockLoginWithEmailAndPassword mockLoginWithEmailAndPassword;

  setUp(() {
    mockLoginWithEmailAndPassword = MockLoginWithEmailAndPassword(); …