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import MockDate from 'mockdate'import moment from 'moment'import dayjs from '../../src'import updateLocale from '../../src/plugin/updateLocale'import localizedFormat from '../../src/plugin/localizedFormat'import '../../src/locale/zh-cn'
dayjs.extend(updateLocale)dayjs.extend(localizedFormat)
beforeEach(() => {  MockDate.set(new Date())})
afterEach(() => {  MockDate.reset()})
const newLocale = {  months: new Array(12).fill('testMonth'),  formats: { // formats for dayjs and longDateFormat for momentjs    LT: '[testFormat]'  },  longDateFormat: {    LT: '[testFormat]'  }}
const formatString = 'MMMM LT'
describe('Update locale', () => {  it('Invalid argument', () => {    const result = dayjs.updateLocale('InvalidLocaleName', {})    expect(result)      .toEqual(undefined)    expect(dayjs().format(formatString))      .toEqual(moment().format(formatString))  })
  it('Return value', () => {    const result1 = dayjs.updateLocale('en')    expect(typeof result1).toEqual('object')    const result2 = dayjs.updateLocale('en', {})    expect(typeof result2).toEqual('object')    const result3 = dayjs.updateLocale('en', newLocale)    expect(typeof result3).toEqual('object')  })
  it('Update build-in en locale', () => {    moment.updateLocale('en', newLocale)    dayjs.updateLocale('en', newLocale)
    expect(dayjs().format(formatString))      .toEqual('testMonth testFormat')
    expect(dayjs().format(formatString))      .toEqual(moment().format(formatString))  })
  it('Update imported zh-cn locale', () => {    moment.updateLocale('zh-cn', newLocale)    dayjs.updateLocale('zh-cn', newLocale)    dayjs.locale('zh-cn')    moment.locale('zh-cn')    expect(dayjs().format(formatString))      .toEqual('testMonth testFormat')
    expect(dayjs().format(formatString))      .toEqual(moment().format(formatString))  })
  it('Update invalid date string', () => {    const locale = 'en'    const localeSetting = { invalidDate: 'bad date' }    dayjs.updateLocale(locale, localeSetting)    moment.updateLocale(locale, localeSetting)    dayjs.locale(locale)    moment.locale(locale)    expect(dayjs('').format()).toBe(moment('').format())    expect(dayjs('otherString').format()).toBe(moment('otherString').format())  })})