如何使用mocha测试我的express/typeorm应用程序？

npm install --save-dev mocha chai supertest

const chai = require('chai');
const chaiHttp = require('chai-http');
const app = require('../app'); // 替换为你的Express应用程序入口文件的路径

chai.use(chaiHttp);
const expect = chai.expect;

describe('Express/TypeORM App', () => {
  // 测试GET请求
  it('should return status 200 and "Hello, World!" message', (done) => {
    chai
      .request(app)
      .get('/')
      .end((err, res) => {
        expect(res).to.have.status(200);
        expect(res.text).to.equal('Hello, World!');
        done();
      });
  });

  // 测试POST请求
  it('should create a new user', (done) => {
    chai
      .request(app)
      .post('/users')
      .send({ name: 'John Doe', age: 25 })
      .end((err, res) => {
        expect(res).to.have.status(201);
        expect(res.body).to.have.property('id');
        expect(res.body.name).to.equal('John Doe');
        expect(res.body.age).to.equal(25);
        done();
      });
  });

  // 更多测试用例...
});

npm test