AssertionError：已使用参数201调用了预期的存根

Question

我是摩卡正弦单元测试的新手。这就是我试图获得预期结果的原因。但这引发了以下错误。

AssertionError：已使用参数201调用了预期的存根

如果我做错了什么，有人可以帮我这个或任何建议。

async createUser(req: Request, res: Response, next: NextFunction) {
    const { name, email, password } = req.body;
    const user = new User({ name, email, password });

    try {
      const userCreated = await userService.createUserService(user);
      res.status(201).json({ status: 201, data: userCreated });
    } catch (err) {
      next(httpErrors(500, err.message));
    }
  }

以上的单元测试：

import chai from "chai";
import sinon from "sinon";
import sinonChai from "sinon-chai";
import { Request, Response } from "express";

import userController from "./user.controller";
import UserService from "../services/user.service";

chai.use(sinonChai);
const { expect } = chai;

const mockReqData = {
  name: "mockName",
  email: "mockEmail",
  password: "mockPassword#123"
};

const req = {
  body: {
    name: mockReqData.name,
    email: mockReqData.email,
    password: mockReqData.password
  }
} as any;

const mockResponse = () => {
  const res: any = {};
  res.status = sinon.stub();
  res.json = sinon.stub();
  res.status.returns(res);
  return res;
};

describe("UserController", () => {
  let res;
  let sandbox;

  beforeEach(() => {
    sandbox = sinon.createSandbox();
    res = mockResponse();
  });

  afterEach(() => {
    sandbox.restore();
  });

  it("should create user", async () => {
    const stubValue = {
      name: "StubName"
    };
    const stub = sandbox
      .stub(userService, "createUserService")
      .returns(stubValue);
    await userController.createUser(req, res, () => {});
    expect(res.status).to.have.been.calledWith(201);
  });
});

任何帮助将不胜感激..

提前感谢。

Answer 1

这是单元测试解决方案：

controller.ts：

import { NextFunction, Response, Request } from 'express';
import userService from './service';
import User from './model';

const userController = {
  async createUser(req: Request, res: Response, next: NextFunction) {
    const { name, email, password } = req.body;
    const user = new User({ name, email, password });

    try {
      const userCreated = await userService.createUserService(user);
      res.status(201).json({ status: 201, data: userCreated });
    } catch (err) {
      next(err);
    }
  },
};

export default userController;

service.ts：

import User from './model';

const userService = {
  async createUserService(user: User) {
    return {};
  },
};

export default userService;

model.ts：

export default class User {
  constructor(data) {}
}

controller.test.ts：

import userController from './controller';
import { Request } from 'express';
import userService from './service';
import sinon from 'sinon';
import User from './model';

describe('userController', () => {
  it('should create user', async () => {
    const mReq = { body: { name: 'mockName', email: 'mockEmail', password: 'mockPassword#123' } } as Request;
    const mRes = { status: sinon.stub().returnsThis(), json: sinon.stub() } as any;
    const mNext = sinon.stub();
    const stubValue = {
      name: 'StubName',
    };
    const createUserServiceStub = sinon.stub(userService, 'createUserService').resolves(stubValue);
    await userController.createUser(mReq, mRes, mNext);
    sinon.assert.calledWithExactly(
      createUserServiceStub,
      new User({
        name: 'mockName',
        email: 'mockEmail',
        password: 'mockPassword#123',
      }),
    );
    sinon.assert.calledWithExactly(mRes.status, 201);
    sinon.assert.calledWithExactly(mRes.json, { status: 201, data: { name: 'StubName' } });
  });
});

带有覆盖率报告的单元测试结果：

  userController
    ✓ should create user


  1 passing (25ms)

---------------|---------|----------|---------|---------|-------------------
File           | % Stmts | % Branch | % Funcs | % Lines | Uncovered Line #s 
---------------|---------|----------|---------|---------|-------------------
All files      |   85.71 |      100 |   66.67 |   85.71 |                   
 controller.ts |      90 |      100 |     100 |      90 | 14                
 model.ts      |     100 |      100 |     100 |     100 |                   
 service.ts    |   66.67 |      100 |       0 |   66.67 | 5                 
---------------|---------|----------|---------|---------|-------------------