user.test.js

/* eslint-disable */

jest.mock('./logger')

process.env.DATABASE_USER = 'user'
process.env.DATABASE_PASSWORD = 'password'
process.env.DATABASE_PROTOCOL = 'mongodb'
process.env.DATABASE_ADDRESS = 'address'
process.env.DATABASE_NAME = 'name'

const uri = `${process.env.DATABASE_PROTOCOL}://${process.env.DATABASE_USER}:${process.env.DATABASE_PASSWORD}@${process.env.DATABASE_ADDRESS}/${process.env.DATABASE_NAME}`

// require module
let m = null
beforeAll(() => {
  jest.mock('mongoose', () => {
    return {
      Schema: function (o) { return o },
      model: function (n, s) { return n },
    }
  })

  m = require('./user')
  return m
})

test('requires module and sets it up', () => {
  expect(m).toBeTruthy()
})

test('creates a correct uri', done => {
  m((u, n) => new Promise((resolve, reject) => {
    expect(u).toBe(uri)
    done()
    const connection = {
      model: function (collectionName) { }
    }
    resolve(connection)
  }))
})

test('connects to the correct collection', done => {
  m((u, n) => new Promise((resolve, reject) => {
    const connection = {
      model: function (modelName) {
        expect(modelName).toBe('User')
        done()
      }
    }
    resolve(connection)
  }))
})

test('exits if no database connection', done => {
  jest
    .spyOn(process, 'exit')
    .mockImplementation((exitCode) => {
      expect(exitCode).toBe(0)
      done()
    })

  m((u, n) => Promise.reject('database error'))
})