jinbi-utils/test/date/index.test.ts

这是一个实用工具库，包含了多个常用的功能模块。以下是各个模块的详细说明：

import { compatibleDate, newDate, formatTime, fromNow, addDays } from '../../src';

describe('compatibleDate', () => {
  test(`compatibleDate('2020-03-04') 返回 2020/03/04`, () => {
    expect(compatibleDate('2020-03-04')).toBe('2020/03/04');
  })
  test(`compatibleDate(Date.now()) 返回 Date.now()`, () => {
    const now = Date.now();
    expect(compatibleDate(now)).toBe(now);
  })
  test(`compatibleDate(new Date()) 返回 new Date()`, () => {
    const newDate = new Date();
    expect(compatibleDate(newDate)).toBe(newDate);
  })
});

describe('newDate', () => {
  const date = new Date();
  test(`newDate() 返回 new Date()`, () => {
    expect(new Date(date)).toEqual(date);
  })
  test(`newDate('2020-03-04') 返回 new Date(2020/03/04)`, () => {
    expect(newDate('2020-03-04')).toEqual(new Date('2020/03/04'));
  })
  test(`newDate(date) 返回 date`, () => { 
    const date = new Date();
    expect(newDate(date)).toEqual(date);
  })
});

describe('formatTime', () => {
  test(`formatTime() 返回 ${formatTime()}`, () => {
    expect(formatTime()).toBe(formatTime());
  })
  test(`formatTime('2018-02-02 00:00:00') 返回 2018-02-02 00:00:00`, () => {
    expect(formatTime('2018-02-02 00:00:00')).toBe('2018-02-02 00:00:00');
  })
  test(`formatTime('2018-02-02', 'yyyy/MM/dd') 返回 2018/02/02`, () => {
    expect(formatTime('2018-02-02', 'yyyy/MM/dd')).toBe('2018/02/02');
  })
  test(`formatTime('2018-02-02 23:50:50', 'yyyy/MM/dd HH:mm:ss') 返回 2018/02/02 23:50:50`, () => {
    expect(formatTime('2018-02-02 23:50:50', 'yyyy/MM/dd HH:mm:ss')).toBe('2018/02/02 23:50:50');
  })
  test(`formatTime('2018-02-02 23:50:50', 'MM/dd HH:mm:ss') 返回 02/02 23:50:50`, () => {
    expect(formatTime('2018-02-02 23:50:50', 'MM/dd HH:mm:ss')).toBe('02/02 23:50:50');
  })
  test(`formatTime(new Date('2018-02-02 23:50:50') + 200, 'yyyy/MM/dd HH:mm:ss S') 返回 2018/02/02 23:50:50 200`, () => {
    const date = new Date('2018-02-02 23:50:50').getTime() + 200;
    expect(formatTime(date, 'yyyy/MM/dd HH:mm:ss S')).toBe('2018/02/02 23:50:50 200');
  })
});

describe('fromNow', () => {
  const date = new Date();
  const now = Date.now();
  test(`fromNow('') 返回 -`, () => {
    expect(fromNow('')).toBe('-');
  })
  test(`fromNow(Date.now() + 2000) 返回 Date.now() + 2000`, () => {
    expect(fromNow(now + 2000)).toBe(now + 2000);
  })
  test(`fromNow(Date.now()) 返回 刚刚`, () => {
    expect(fromNow(now)).toBe('刚刚');
  })
  test(`fromNow(new Date().getTime()) 返回 刚刚`, () => {
    expect(fromNow(date.getTime())).toBe('刚刚');
  })
  // 之所返回的是 58 是因为 Date.now() 获取的时机在调用之后
  test(`fromNow(now - 3420 * 1000) 返回 58分钟前面`, () => {
    expect(fromNow(now - 3420 * 1000)).toBe('58分钟前');
  })
  test(`fromNow(now - 3600 * 1000 * 3) 返回 3小时前`, () => {
    expect(fromNow(now - 3600 * 1000 * 3)).toBe('3小时前');
  })
  test(`fromNow(now - 3600 * 1000 * 24 * 1.5) 返回 1天前`, () => {
    expect(fromNow(now - 3600 * 1000 * 24 * 1.5)).toBe('1天前');
  })
  const day5 = 3600 * 1000 * 24 * 5;
  test(`fromNow(now - day5) 返回 formatTime(now - day5, 'yyyy年MM月dd日 HH时mm分ss秒')`, () => {
    expect(fromNow(now - day5, 'yyyy年MM月dd日 HH时mm分ss秒')).toBe(formatTime(now - day5, 'yyyy年MM月dd日 HH时mm分ss秒'));
  })
  test(`fromNow('', '', 'defaultValue') 等于 defaultValue`, () => {
    expect(fromNow('', '', 'defaultValue')).toBe('defaultValue');
  })
});

describe('addDays', () => {
  test(`addDays('') 返回 -`, () => {
    expect(addDays('')).toBe('-');
  })
  test(`addDays('2018-02-02') 返回 2018-02-02`, () => {
    expect(addDays('2018-02-02')).toBe('2018-02-02');
  })
  test(`addDays('2018-02-02', 2) 返回 2018-02-04`, () => {
    expect(addDays('2018-02-02', 2)).toBe('2018-02-04');
  })
  test(`addDays('2018-02-02', 2, 'yyyy/MM/dd') 返回 2018/02/04`, () => {
    expect(addDays('2018-02-02', 2, 'yyyy/MM/dd')).toBe('2018/02/04');
  })
  test(`addDays(new Date('2020-03-04'), 2, 'yyyy/MM/dd') 返回 2020/03/06`, () => {
    expect(addDays(new Date('2020-03-04'), 2, 'yyyy/MM/dd')).toBe('2020/03/06');
  })
  test(`addDays(Date.now(), 2, 'yyyy/MM/dd') 返回 今天 + 2天`, () => {
    const now = Date.now();
    expect(addDays(now, 2, 'yyyy/MM/dd')).toBe(formatTime(now + 2 * 24 * 60 * 60 * 1000, 'yyyy/MM/dd'));
  })
});