时间戳

首页 > 解决方案 > 期望(jest.fn()).toHaveBeenCalledWith(...期望)

unit-testing - 期望(jest.fn()).toHaveBeenCalledWith(...期望)

问题描述

我正在尝试为用 NEST.JS 编写的控制器编写单元测试以下是单元测试失败的登录方法

@Post('login')
async login(@Body() payload: LoginPayload): Promise<any> {
    this.logger.info("Calling Loging");
    this.logger.debug("Calling Loging");
    const user = await this.authService.validateUser(payload);
    return await this.authService.createToken(user);
}

上述代码的单元测试是在 JEST 框架中编写的。

  beforeEach(async () => {
    // createInputDetails() Functions initializes the LoginPayload, RegisterPayload and User Object
    createInputDetails();
    module = await Test.createTestingModule({
      controllers: [AuthController],
      providers: [
        {
          provide: AuthService,
          useFactory: () => ({
            createToken: jest.fn(() => true),
            validateUser: jest.fn(() => true),
          }),
        },
        {
          provide: UserService,
          useFactory: () => ({
            get: jest.fn(() => true),
            getByEmail: jest.fn(() => true),
            getByEmailAndPass: jest.fn(() => true),
            create: jest.fn(() => true),
          }),
        },
      ],
    }).compile();

    controller = module.get<AuthController>(AuthController);
    authService = module.get<AuthService>(AuthService);
    userService = module.get<UserService>(UserService);
  });

  describe('login', () => {
    it('should validate user', async () => {
      controller.login(loginPayload);
      expect(authService.validateUser).toHaveBeenCalledWith(loginPayload);
      expect(authService.createToken).toHaveBeenCalledWith(user);
    })
  })

我收到以下错误。需要知道我在这里缺少什么吗？

expect(jest.fn()).toHaveBeenCalledWith(...expected)
    Expected: {"email": "abc@xyz.com", "firstName": "abc", "lastName": "pqr", "password": "Test@1234", "profile": {"age": 32, "nickname": "abc"}, "userId": 14}

    Number of calls: 0

       96 |       controller.register(registerPayload);
       97 |       // expect(userService.create).toHaveBeenCalledWith(registerPayload);
    >  98 |       expect(authService.createToken).toHaveBeenCalledWith(user);
          |                                       ^
       99 |     })
      100 |   })
      101 | 

      at Object.it (modules/auth/auth.controller.spec.ts:98:39)

标签： unit-testingjestjsnestjs

解决方案

您的controller.login方法是异步的，因此您不应await controller.login(registerPayload)直接调用它。我有一种感觉，您在开玩笑并没有等待nextTick处理，而是在不让控制器方法运行其段的情况下继续前进

推荐阅读