Integration tests for a basic CRUD API for Users

users-crud-api-tests.js

require('dotenv').config()
const { HOST, PORT } = process.env
const request = require('supertest')(`http://${HOST}:${PORT}`)

describe('Users CRUD APIs', () => {
  let userId // gets stored once we create a user
  const userInfo = {
    name: 'Dade Murphy',
    username: 'Zero Cool',
    address: {
      city: 'New York',
      state: 'NY',
      zip: '11363'
    }
  }

  describe('Create User', () => {
    it('POST /api/users', async () => {
      const response = await request.post('/api/users')
        .send(userInfo)
        .expect(200)
      userId = response.body._id
      expect(userId).toBeDefined()
    })
  })

  describe('Get User (after create)', () => {
    it(`GET /api/users/:userId`, async () => {
      const { body } = await request.get(`/api/users/${userId}`)
        .send()
        .expect(200)

      expect(body).toEqual({
        _id: userId,
        ...userInfo
      })
    })
  })

  describe('Update User', () => {
    it('PUT /api/users/:userId', async () => {
      const response = await request.put(`/api/users/${userId}`)
        .send({ address: { zip: '11365' } })
        .expect(200)

      const expected = {
        ...userInfo,
        _id: userId,
        address: {
          ...userInfo.address,
          zip: '11365'
        }
      }
      expect(response.body).toEqual(expected)
    })
  })

  describe('Delete User', () => {
    it('DELETE /api/users/:userId', async () => {
      await request.delete(`/api/users/${userId}`)
        .send()
        .expect(205)
    })
  })

  describe('Get User (after delete)', () => {
    it('GET /api/users/:userId', async () => {
      await request.get(`/api/users/${userId}`)
        .send()
        .expect(404)
    })
  })
})