import { User } from './user.entity';

describe('User', () => {
  it('creates with valid email', () => {
    const email = Email.create('test@example.com');
    const user = User.create('1', email);
    expect(user.id).toBe('1');
  });
});

import { Test } from '@nestjs/testing';
import { CreateUserUseCase } from './create-user.use-case';
import { FakeUserRepository } from './fakes/fake-user.repository';

describe('CreateUserUseCase', () => {
  let useCase: CreateUserUseCase;

  beforeEach(async () => {
    const module = await Test.createTestingModule({
      providers: [
        CreateUserUseCase,
        { provide: 'UserRepository', useClass: FakeUserRepository },
      ],
    }).compile();
    useCase = module.get(CreateUserUseCase);
  });

  it('creates user', async () => {
    const result = await useCase.execute({ id: '1', email: 'test@example.com' });
    expect(result.success).toBe(true);
  });
});

const module = await Test.createTestingModule({
  controllers: [UserController],
  providers: [CreateUserUseCase, { provide: 'UserRepository', useClass: FakeUserRepository }],
}).compile();

// ❌ jest.mock for internal modules
jest.mock('../../application/user.repository');