@instructure/quiz-interactions/src/util/__tests__/messages.test.js

A React UI component Library for quiz interaction types.

import {toErrors} from '../instUIMessages'

describe('instUIMessages.toErrors', () => {
  const errors = ['this', 'that', 'those']

  it('should return an array of the same length as the input', () => {
    const result = toErrors(errors)

    expect(Array.isArray(result)).toBe(true)
    expect(result.length).toEqual(errors.length)
  })

  it('should BE an array of formatted objects', () => {
    const result = toErrors(errors)

    expect(result.map(e => e.text)).toEqual(errors)
    expect(result.map(e => e.type)).toEqual(errors.map(() => 'error'))
  })

  it('should behave well when being applied multiple times to itself', () => {
    const result = toErrors(toErrors(toErrors(errors)))

    expect(result.map(e => e.text)).toEqual(errors)
    expect(result.map(e => e.type)).toEqual(errors.map(() => 'error'))
  })

  it('should detect already formatted objects and just return them', () => {
    const result = toErrors(errors)

    expect(result).toEqual(toErrors(result))
  })
})