app/tests/units/services/utils/i18nUtils.test.ts

import { describe, test, it, expect } from 'vitest'
import type { VueI18n } from 'vue-i18n'
import I18nUtils from '~/services/utils/i18nUtils'
import type { EnumChoices } from '~/types/interfaces'

describe('translateEnum', () => {
  let i18nUtils: I18nUtils

  beforeEach(() => {
    // @ts-ignore
    const i18n = vi.fn() as VueI18n
    i18nUtils = new I18nUtils(i18n)
    i18n.t = vi.fn((msg: string) =>
      msg.replace('This is the letter', "C'est la lettre"),
    )
  })

  test('with simple enum', () => {
    const input: EnumChoices = [
      { value: 'Alpha', label: 'This is the letter A' },
      { value: 'Beta', label: 'This is the letter B' },
      { value: 'Epsilon', label: 'This is the letter E' },
    ]

    const expected: EnumChoices = [
      { value: 'Alpha', label: "C'est la lettre A" },
      { value: 'Beta', label: "C'est la lettre B" },
      { value: 'Epsilon', label: "C'est la lettre E" },
    ]

    expect(i18nUtils.translateEnum(input)).toEqual(expected)
  })

  test('with simple enum and sorting enabled', () => {
    const input: EnumChoices = [
      { value: 'Epsilon', label: 'This is the letter E' },
      { value: 'Alpha', label: 'This is the letter A' },
      { value: 'Beta', label: 'This is the letter B' },
    ]

    const expected: EnumChoices = [
      { value: 'Alpha', label: "C'est la lettre A" },
      { value: 'Beta', label: "C'est la lettre B" },
      { value: 'Epsilon', label: "C'est la lettre E" },
    ]

    expect(i18nUtils.translateEnum(input, true)).toEqual(expected)
  })
})

describe('formatPhoneNumber', () => {
  let i18nUtils: I18nUtils

  beforeEach(() => {
    // @ts-ignore
    const i18n = vi.fn() as VueI18n
    i18nUtils = new I18nUtils(i18n)
  })
  test('with valid international phone number', () => {
    expect(i18nUtils.formatPhoneNumber('+33611223344')).toEqual(
      '06 11 22 33 44',
    )
  })
  test('with valid non-formatted phone number', () => {
    expect(i18nUtils.formatPhoneNumber('0611223344', 'FR')).toEqual(
      '06 11 22 33 44',
    )
  })
  test('with empty string', () => {
    expect(() => i18nUtils.formatPhoneNumber('', 'FR')).toThrowError(
      'NOT_A_NUMBER',
    )
  })
  test('with invalid string', () => {
    expect(() => i18nUtils.formatPhoneNumber('abcd', 'FR')).toThrowError(
      'NOT_A_NUMBER',
    )
  })
})