overleaf/services/spelling/test/acceptance/js/LearnTest.js

const { expect } = require('chai')
const request = require('./helpers/request')

const USER_ID = 101

const checkWord = words =>
  request.post({
    url: `/user/${USER_ID}/check`,
    body: JSON.stringify({
      words
    })
  })

const learnWord = word =>
  request.post({
    url: `/user/${USER_ID}/learn`,
    body: JSON.stringify({
      word
    })
  })

const deleteDict = () =>
  request.del({
    url: `/user/${USER_ID}`
  })

describe('learning words', () => {
  it('should return status 200 when posting a word successfully', async () => {
    const response = await learnWord('abcd')
    expect(response.statusCode).to.equal(200)
  })

  it('should return no misspellings after a word is learnt', async () => {
    const response = await checkWord(['abv'])
    const responseBody = JSON.parse(response.body)
    expect(responseBody.misspellings.length).to.equals(1)

    await learnWord('abv')

    const response2 = await checkWord(['abv'])
    const responseBody2 = JSON.parse(response2.body)
    expect(responseBody2.misspellings.length).to.equals(0)
  })

  it('should return misspellings again after a personal dictionary is deleted', async () => {
    await learnWord('bvc')
    await deleteDict()

    const response = await checkWord(['bvc'])
    const responseBody = JSON.parse(response.body)
    expect(responseBody.misspellings.length).to.equals(1)
  })
})