it('ignores a block to a booked day', () => {
      const state = reducer(stateTodayBooked(), actions.blockDay(TODAY));
      expect(state.get('booked_dates').length).to.equal(1);
      expect(state.get('initial_blocked_dates').length).to.equal(0);
      expect(state.get('blocked_dates').length).to.equal(0);