old_contents: # coding=utf-8
  from datetime import date
  
  from enerdata.calendars import REECalendar
  from workalendar.europe import Spain
  from expects import *
  
  
  with description('REE Calendar'):
      with it('must be inherit from Spain Calendar'):
          ree_cal = REECalendar()
          expect(ree_cal).to(be_a(Spain))
  
      with it('must have the same holidays in Spain '
              'without epiphany and good friday'):
          cal = REECalendar()
          expect(cal.is_holiday(date(2017, 1, 6))).to(be_false)
          expect(cal.is_holiday(date(2017, 4, 14))).to(be_false)
  
new_contents: # coding=utf-8
  from datetime import date
  
  from enerdata.calendars import REECalendar
  from workalendar.europe import Spain
  from expects import *
  
  
  with description('REE Calendar'):
      with it('must be inherit from Spain Calendar'):
          ree_cal = REECalendar()
          expect(ree_cal).to(be_a(Spain))
  
      with it('must have the same holidays in Spain '
              'without epiphany and good friday'):
          cal = REECalendar()
          expect(cal.is_holiday(date(2017, 1, 6))).to(be_false)
          expect(cal.is_holiday(date(2017, 4, 14))).to(be_false)
  
      with it('must have epiphany as holiday from 2022'):
          cal = REECalendar()
          expect(cal.is_holiday(date(2022, 1, 6))).to(be_true)
          expect(cal.is_holiday(date(2021, 1, 6))).to(be_false)
  
subject: Add tests