Mocha 测试嵌套模型答案

【问题标题】：Mocha Testing a Nested ModelMocha 测试嵌套模型
【发布时间】：2016-12-27 03:01:43
【问题描述】：

尝试为嵌套模型编写测试但无法正常工作：

型号：

const EmployeeSchema = new mongoose.Schema({
  firstName: {type: String, required: true},
  lastName: { type: String, required: true}
});

const CompanySchema = new mongoose.Schema({
  name: { type: String, required: true },
  streetAddress: { type: String, required: true },
  country: { type: String, required: true },
  employees:[EmployeeSchema]    
}, { timestamps: true});

控制器：

function create(req, res, next) {
  const company = new Company({
    name: req.body.name,
    streetAddress: req.body.streetAddress,
    country: req.body.country    
  });

  company.employees.push(req.employees);

  company.save()
    .then(savedCompany => res.json(savedCompany))
    .catch(e => next(e));
}

测试：

    describe('## Company APIs', () => {
      let company = {
        name: "Test Company",
        streetAddress: "123 Fake Street",
        country: "A Country"    
      };
      company.employees.push({firstName: "Jane", lastName: "Doe"});

  describe('# POST /api/company', () => {
    it('should create a new company', (done) => {
      request(app)
        .post('/api/company')
        .send(company)
        .expect(httpStatus.OK)
        .then((res) => {
          expect(res.body.name).to.equal(company.name);
          expect(res.body.streetAddress).to.equal(company.streetAddress);
          expect(res.body.country).to.equal(company.country);
          company = res.body;
          done();
        })
        .catch(done);
    });
  });

以上给出：TypeError: Cannot read property 'push' of undefined

我尝试了其他一些方法，但这是最有希望的结果，由于某种原因，我似乎无法在设置单元测试时填充嵌入式模型。

【问题讨论】：

这可能不是答案，但我在测试中发现了这条线company.employees.push({firstName: "Jane", lastName: "Doe"});。它试图推送公司中不存在的对象employees。而且它不断言company.employees 然后我认为您可以删除该行

标签： express mongoose ecmascript-6 mocha.js

【解决方案1】：

我最终解决了这个问题，希望这对将来的人有所帮助。

测试：

it('should associate an employee with the company', (done) => {    
      var employee = new Employee();
      company.employees.push(employee);      
      request(app)
        .put(`/api/company/${company._id}`)
        .send(company)
        .expect(httpStatus.OK)
        .then((res) => {
          expect(res.body.employees).to.be.an('array')
          expect(res.body.employees).to.contain(employee.id)
          done();
        })
        .catch(done);
    });

控制器： 添加这个来处理多个添加：

if (req.body.employees != null) {      
    req.body.employees.forEach(function(employee) {      
      company.employees.push(employee);
    }, this);
  }

【讨论】：