public void TE_DayInMonth()
{
//single day
TEDayInMonth tem = new TEDayInMonth(4);
Assert.IsTrue(tem.Includes(new DateTime(2010, 6, 4)));
Assert.IsTrue(tem.Includes(new DateTime(2010, 8, 4)));
Assert.IsTrue(tem.Includes(new DateTime(2011, 9, 4)));
Assert.IsFalse(tem.Includes(new DateTime(2010, 6, 2)));
Assert.IsFalse(tem.Includes(new DateTime(2012, 8, 3)));
Assert.IsFalse(tem.Includes(new DateTime(1998, 9, 5)));
//date param
tem = new TEDayInMonth(new DateTime(2012,1,4));
Assert.IsTrue(tem.Includes(new DateTime(2010, 6, 4)));
Assert.IsTrue(tem.Includes(new DateTime(2010, 8, 4)));
Assert.IsTrue(tem.Includes(new DateTime(2011, 9, 4)));
Assert.IsFalse(tem.Includes(new DateTime(2010, 6, 2)));
Assert.IsFalse(tem.Includes(new DateTime(2012, 8, 3)));
Assert.IsFalse(tem.Includes(new DateTime(1998, 9, 5)));
//range
TEDayInMonth temr = new TEDayInMonth(5, 10);
Assert.IsTrue(temr.Includes(new DateTime(2010, 5, 5)));
Assert.IsTrue(temr.Includes(new DateTime(2010, 8, 7)));
Assert.IsTrue(temr.Includes(new DateTime(2011, 9, 10)));
Assert.IsFalse(temr.Includes(new DateTime(2010, 6, 2)));
Assert.IsFalse(temr.Includes(new DateTime(2012, 8, 3)));
Assert.IsFalse(temr.Includes(new DateTime(1998, 9, 15)));
//negative
TEDayInMonth ten = new TEDayInMonth(-4);
Assert.IsTrue(ten.Includes(new DateTime(2010, 6, 27)));
Assert.IsTrue(ten.Includes(new DateTime(2010, 7, 28)));
Assert.IsTrue(ten.Includes(new DateTime(2010, 5, 28)));
Assert.IsFalse(ten.Includes(new DateTime(2010, 6, 26)));
Assert.IsFalse(ten.Includes(new DateTime(2010, 7, 29)));
Assert.IsFalse(ten.Includes(new DateTime(2010, 5, 27)));
}