import { type DateRange } from '~components/Calendar'
import { formatDateRangeValue } from './formatDateRangeValue'

describe('formatDateRangeValue', () => {
  it('displays a from date by itself', () => {
    const dateRangeFromOnly: DateRange = {
      from: new Date(2022, 1, 1),
      to: undefined,
    }

    expect(formatDateRangeValue(dateRangeFromOnly)).toEqual('Feb 1, 2022')
  })

  it('displays the year once when both dates share the same year', () => {
    const dateRangeBothValues: DateRange = {
      from: new Date(2022, 1, 1),
      to: new Date(2022, 2, 2),
    }

    expect(formatDateRangeValue(dateRangeBothValues)).toEqual('Feb 1 – Mar 2, 2022')
  })

  it('displays the year for both dates when they are not the same', () => {
    const dateRangeOvertoNewYear: DateRange = {
      from: new Date(2022, 1, 1),
      to: new Date(2023, 1, 1),
    }

    expect(formatDateRangeValue(dateRangeOvertoNewYear)).toEqual('Feb 1, 2022 – Feb 1, 2023')
  })
})