app/tests/units/services/utils/dateUtils.test.ts

import { describe, test, it, expect } from 'vitest'
import DateUtils from "~/services/utils/dateUtils";

describe('format', () => {
    test('simple formatting', () => {
      const input = new Date(2020, 4, 12)

      expect(DateUtils.format(input, 'y-MM-dd')).toEqual('2020-05-12')
    })
})

describe('formatDatesAndConcat', () => {
    test('simple array and default sep', () => {
      const input = [
          new Date(2023, 0, 10),
          new Date(2023, 0, 11),
          new Date(2023, 0, 12)
      ]

      const result = DateUtils.formatAndConcat(input, 'dd/MM/y')

      expect(result).toEqual('10/01/2023 - 11/01/2023 - 12/01/2023')
    })

    test('single date and default sep', () => {
      const input = new Date(2023, 0, 10)

      const result = DateUtils.formatAndConcat(input, 'dd/MM/y')

      expect(result).toEqual('10/01/2023')
    })

    test('simple array with other format and custom sep', () => {
      const input = [
          new Date(2023, 0, 10),
          new Date(2023, 0, 11),
          new Date(2023, 0, 12)
      ]

      const result = DateUtils.formatAndConcat(input, 'yMMdd', '|')

      expect(result).toEqual('20230110|20230111|20230112')
    })

    test ('empty array', () => {
        expect(DateUtils.formatAndConcat([], 'dd-MM-y')).toEqual('')
    })
})

describe('sortDate', () => {
    test('simple sort', () => {
        const input = [
            new Date(2023, 0, 12),
            new Date(2023, 0, 10),
            new Date(2023, 0, 11)
        ]

        const expected = [
            new Date(2023, 0, 10),
            new Date(2023, 0, 11),
            new Date(2023, 0, 12)
        ]

        expect(DateUtils.sort(input)).toEqual(expected)
    })

    test('reverse sort', () => {
        const input = [
            new Date(2023, 0, 12),
            new Date(2023, 0, 10),
            new Date(2023, 0, 11)
        ]

        const expected = [
            new Date(2023, 0, 12),
            new Date(2023, 0, 11),
            new Date(2023, 0, 10)
        ]

        expect(DateUtils.sort(input, true)).toEqual(expected)
    })
})