standard-locales.test.ts

import { describe, expect, it } from 'vitest'
import { languages } from './languages.ts'
import { regions } from './regions.ts'
import { scripts } from './scripts.ts'
import { standardLocales } from './standard-locales.ts'

describe('standard-locales', () => {
  it('all languages are part of our central list', () => {
    expect.assertions(219)

    for (const tag of standardLocales) {
      const locale = new Intl.Locale(tag)

      expect(languages).toContain(locale.language)
    }
  })

  it('all scripts are part of our central list', () => {
    expect.assertions(15)

    for (const tag of standardLocales) {
      const locale = new Intl.Locale(tag)

      if (locale.script) {
        expect(scripts).toContain(locale.script)
      }
    }
  })

  it('all regions are part of our central list', () => {
    expect.assertions(216)

    for (const tag of standardLocales) {
      const locale = new Intl.Locale(tag)

      if (locale.region) {
        expect(regions).toContain(locale.region)
      }
    }
  })
})