public void GetByMonth_TwoItemsInEachMonth_ReturnsTwoItemsFromRequestedMonth()
        {
            // Arrange
            var repo = new HolidayRepository(Session);

            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 1, 1), "Holiday jan"));
            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 1, 2), "Holiday jan 2"));
            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 2, 1), "Holiday feb"));
            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 2, 2), "Holiday feb 2"));
            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 3, 1), "Holiday march"));
            repo.SaveOrUpdate(new Holiday(new DateTime(2013, 3, 2), "Holiday march 2"));

            // Act
            var result = repo.GetByMonth(2, 2013).ToList();

            // Assert
            Assert.That(result.Count, Is.EqualTo(2));
            AssertHoliday(result[0], new DateTime(2013, 2, 1), "Holiday feb");
            AssertHoliday(result[1], new DateTime(2013, 2, 2), "Holiday feb 2");
        }