如何使用玩笑来测试快速中间件

Question

所以我有一个带有中间件的控制器。但我不知道如何用玩笑来测试它。香港专业教育学院阅读的所有示例都是不同的。像这样的link

export class UsersController extends BaseController {
  @Post('signup')
  @Middleware([UserMiddleware.validateUser, UserMiddleware.generateTokenUsingJWT])
  private async userSignUp(req: Request, res: Response) {
    const { user, jwt } = res.locals;
    try {
      res.json({
        meta: {},
        payload: {
          user: {
            username: user.username
          },
          jwt
        }
      });
    } catch (error) {
      res.json({
        error
      });
    }
  }
}

中间件：

export class UserMiddleware {
  static async validateUser(req: Request, res: Response, next: NextFunction): Promise<void> {
    try {
      // if validation fail lets hope it throws.
      const user: User = await User.create({
        ...req.body
      }).validateModel();
      res.locals = {
        user: await user.save()
      };
      next();
    } catch (error) {
      res.json({
        error
      });
    }
  }

  static async checkUserBeforeLogin(req: Request, res: Response, next: NextFunction): Promise<void> {
    const { email, password } = req.body;

    try {
      const user = await User.findOneOrFail({ select: ['id', 'email', 'password'], where: { email } });
      const isPasswordCorrect = await bcrypt.compare(password, user.password);

      if (isPasswordCorrect) {
        res.locals = {
          user
        };
        next();
      } else {
        res.json({
          error: 'incorrect password'
        });
      }
    } catch (error) {
      res.status(404).json({
        error: `no user with ${email}`
      });
    }
  }

  static generateTokenUsingJWT(req: Request, res: Response, next: NextFunction): void {
    const { user } = res.locals;
    const { id, email } = user;

    const jwt = JwtManager.jwt({
      id,
      email
    });
    if (jwt) {
      res.locals = {
        jwt,
        user
      };
      next();
    } else {
      res.status(500).json({
        error: 'Can not generate token'
      });
    }
  }
}

我被困在这一个上

describe('', () => {
  it('should validate a user', async () => {
    const req = {
      body: {
        username: 'nocap',
        email: 'nocap@gmail.com',
        password: 'password'
      }
    };
    const res = {
      locals: {}
    };

    const result = await new Promise((response, reject) => {
      UserMiddleware.validateUser(req, res, (err) => {
        if (!err) {
          response(resp);
        }
      });
    });
    expect(true).toBe(true);
  });
});

测试尚未完成。我不知道从哪里获取参数。即时通讯收到类型错误。有任何想法吗？谢谢。圣诞快乐