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import MockDate from 'mockdate'import dayjs from '../../src'import minMax from '../../src/plugin/minMax'
dayjs.extend(minMax)
beforeEach(() => {  MockDate.set(new Date())})
afterEach(() => {  MockDate.reset()})
const arg1 = dayjs('2019-01-01')const arg2 = dayjs('2018-01-01')const arg3 = dayjs('2017-01-01')const arg4 = dayjs('Invalid Date')
it('Return current time if no argument', () => {  expect(dayjs.max())    .toBe(null)  expect(dayjs.min())    .toBe(null)  expect(dayjs.max(null))    .toBe(null)  expect(dayjs.min(null))    .toBe(null)})
it('Return current time if passing empty array', () => {  expect(dayjs.max([]))    .toBe(null)  expect(dayjs.min([]))    .toBe(null)})
it('Compare between arguments', () => {  expect(dayjs.max(arg1, arg2, arg3).format())    .toBe(arg1.format())  expect(dayjs.min(arg1, arg2, arg3).format())    .toBe(arg3.format())})
it('Compare in array', () => {  expect(dayjs.max([arg1, arg2, arg3]).format())    .toBe(arg1.format())  expect(dayjs.min([arg1, arg2, arg3]).format())    .toBe(arg3.format())})
it('If Invalid Date return Invalid Date', () => {  expect(dayjs.max(arg1, arg2, arg3, arg4).format())    .toBe(arg4.format())  expect(dayjs.min([arg1, arg2, arg3, arg4]).format())    .toBe(arg4.format())})