import { formatTimezone } from './timezone-backwards'

describe('timezone-backwards - formatTimezone', () => {
  // not exhaustive
  it.each([
    ['US/Alaska', 'America/Anchorage'],
    ['US/Aleutian', 'America/Adak'],
    ['US/Arizona', 'America/Phoenix'],
    ['US/Central', 'America/Chicago'],
    ['US/East-Indiana', 'America/Indiana/Indianapolis'],
    ['US/Eastern', 'America/New_York'],
    ['US/Hawaii', 'Pacific/Honolulu'],
    ['US/Indiana-Starke', 'America/Indiana/Knox'],
    ['US/Michigan', 'America/Detroit'],
    ['US/Mountain', 'America/Denver'],
    ['US/Pacific', 'America/Los_Angeles'],
    ['US/Samoa', 'Pacific/Pago_Pago'],
  ])(
    'should swap old timezone names for new ones, old=%s => new=%s',
    (input, expected) => expect(formatTimezone(input)).toEqual(expected)
  )

  // not exhaustive
  it.each([
    ['America/Chicago', 'America/Chicago'],
    ['America/New_York', 'America/New_York'],
    ['America/Phoenix', 'America/Phoenix'],
    ['America/Los_Angeles', 'America/Los_Angeles'],
    ['America/Anchorage', 'America/Anchorage'],
    ['America/Adak', 'America/Adak'],
    ['America/Indiana/Indianapolis', 'America/Indiana/Indianapolis'],
    ['America/Denver', 'America/Denver'],
    ['America/Detroit', 'America/Detroit'],
    ['America/Indiana/Knox', 'America/Indiana/Knox'],
    ['Pacific/Honolulu', 'Pacific/Honolulu'],
    ['Pacific/Pago_Pago', 'Pacific/Pago_Pago'],
    ['America/Indiana/Knox', 'America/Indiana/Knox'],
    ['Pacific/Honolulu', 'Pacific/Honolulu'],
    ['Pacific/Pago_Pago', 'Pacific/Pago_Pago'],
  ])(
    'should return the input if it is not a known old timezone, zone=%s => unchanged=%s ',
    (input, expected) => {
      expect(input).toEqual(expected)
      expect(formatTimezone(input)).toEqual(expected)
    }
  )
})