public void CombineTest()
{
DateTime datePart = new DateTime(2005, 12, 20);
DateTime timePart = new DateTime(1981, 12, 20, 22, 55, 00);
DateTime expected = new DateTime(2005, 12, 20, 22, 55, 00);
DateTime actual = DateUtil.Combine(datePart, timePart);
Assert.AreEqual(expected, actual);
}