Whalebird-desktop-client-mac-linux-windows/spec/config/i18n.spec.ts

import * as path from 'path'
import fs from 'fs'
import keys from 'all-object-keys'

const locales = [
  'de',
  'fr',
  'gd',
  'it',
  'ja',
  'ko',
  'pl',
  'is',
  'it',
  'zh_cn',
  'zh_tw',
  'cs',
  'es_es',
  'no',
  'pt_pt',
  'ru',
  'si',
  'sv_se',
  'tzm',
  'fa'
]

describe('i18n', () => {
  describe('should not define duplicate keys', () => {
    locales.forEach(locale => {
      it(`${locale} translation`, () => {
        const targetJson = JSON.parse(
          fs.readFileSync(path.resolve(__dirname, `../../src/config/locales/${locale}/translation.json`), 'utf8')
        )
        const allKeys = keys(targetJson)
        const duplicates: Array<string> = allKeys.filter(
          (x: string, _: number, self: Array<string>) => self.indexOf(x) !== self.lastIndexOf(x)
        )
        expect(duplicates).toEqual([])
      })
    })
  })
})