public void TimeElapsedInYearsSince_ValidGameDate_ReturnCorrectNumberOfDays()
{
//ARRANGE
StandardDateTime time = new StandardDateTime();
time.SetDatetime(new System.DateTime(5196, 9, 1));
//ACT
long days = time.TimeElapsedInYearsSince(new StandardDateTime(new System.DateTime(5203, 11, 1, 1, 2, 0)));
//ASSERT
Assert.AreEqual(7, days);
}