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import MockDate from 'mockdate'import moment from 'moment'import dayjs from '../src'import es from '../src/locale/es'
beforeEach(() => {  MockDate.set(new Date())})
afterEach(() => {  MockDate.reset()})
const format = 'dddd D, MMMM'const NOT_SUPPORTED_LOCALE_STRING = 'not_supported_locale_string'
it('Uses spanish locale through constructor', () => { // not recommend  expect(dayjs('2018-4-28', { locale: es })    .format(format))    .toBe('sábado 28, abril')})
it('set locale for one instance only', () => {  expect(dayjs('2018-4-28')    .format(format))    .toBe('Saturday 28, April')
  expect(dayjs('2018-4-28')    .locale(es).format(format))    .toBe('sábado 28, abril')
  expect(dayjs('2018-4-28')    .format(format))    .toBe('Saturday 28, April')})
it('set global locale', () => {  dayjs.locale('en')  expect(dayjs('2018-4-28').format(format))    .toBe('Saturday 28, April')  dayjs.locale(es)  expect(dayjs('2018-4-28').format(format))    .toBe('sábado 28, abril')  dayjs.locale('en')  expect(dayjs('2018-4-28').format(format))    .toBe('Saturday 28, April')})
it('get instance locale name', () => {  expect(dayjs().locale()).toBe('en')  expect(dayjs().locale()).toBe(moment().locale())  expect(dayjs().locale('es').locale()).toBe('es')  expect(dayjs().locale('es').locale()).toBe(moment().locale('es').locale())  dayjs.locale(es)  moment.locale('es')  expect(dayjs().locale()).toBe('es')  expect(dayjs().locale()).toBe(moment().locale())})
it('immutable instance locale', () => {  dayjs.locale('en')  const origin = dayjs('2018-4-28')  expect(origin.format(format))    .toBe('Saturday 28, April')  expect(origin.locale('es').format(format))    .toBe('sábado 28, abril')  const changed = origin.locale('es')  expect(changed.format(format))    .toBe('sábado 28, abril')  expect(origin.format(format))    .toBe('Saturday 28, April')})
it('User custom locale', () => {  expect(dayjs('2018-4-28')    .locale('xx', {      weekdays: Array(7).fill('week'),      months: Array(12).fill('month')    })    .format(format))    .toBe('week 28, month')})
describe('Instance locale inheritance', () => {  const esDayjs = dayjs('2018-4-28').locale(es)
  it('Clone', () => {    expect(esDayjs.clone().format(format))      .toBe('sábado 28, abril')    expect(dayjs(esDayjs).format(format))      .toBe('sábado 28, abril')  })
  it('StartOf EndOf', () => {    expect(esDayjs.startOf('year').format(format))      .toBe('lunes 1, enero')    expect(esDayjs.endOf('day').format(format))      .toBe('sábado 28, abril')  })
  it('Set', () => {    expect(esDayjs.set('year', 2017).format(format))      .toBe('viernes 28, abril')  })
  it('Add', () => {    expect(esDayjs.add(1, 'year').format(format))      .toBe('domingo 28, abril')    expect(esDayjs.add(1, 'month').format(format))      .toBe('lunes 28, mayo')    expect(esDayjs.add(1, 'minute').format(format))      .toBe('sábado 28, abril')  })
  it('dayjs.locale() returns locale name', () => {    dayjs.locale(es)    moment.locale('es')    expect(dayjs.locale()).toBe(moment.locale())
    dayjs.locale('en')    moment.locale('en')    expect(dayjs.locale()).toBe(moment.locale())  })})

it('Not supported locale string fallback to previous one (instance)', () => {  const D = dayjs()  expect(D.locale()).toBe('en')  const D2 = D.locale(NOT_SUPPORTED_LOCALE_STRING)  expect(D2.locale()).toBe('en')  expect(D2.format()).toBe(D.format())  const D3 = D2.locale('es')  expect(D3.locale()).toBe('es')  const D4 = D3.locale(NOT_SUPPORTED_LOCALE_STRING)  expect(D4.locale()).toBe('es')})
it('Not supported locale string fallback to previous one (global)', () => {  expect(dayjs().locale()).toBe('en')  dayjs.locale(NOT_SUPPORTED_LOCALE_STRING)  expect(dayjs().locale()).toBe('en')  dayjs.locale('es')  expect(dayjs().locale()).toBe('es')  dayjs.locale(NOT_SUPPORTED_LOCALE_STRING)  expect(dayjs().locale()).toBe('es')})