public void WhenDaysInMonthCalled_ExpectSameYearReturned()
{
// Arrange
var now = DateTime.Now;
var expected = DateTime.DaysInMonth(now.Year, now.Month);
// Act
var target = new DateTimeWrap(now);
var actual = target.DaysInMonth(now.Year, now.Month);
// Assert
actual.Should().Equal(expected);
}
