public void Test_SubtractTime_Invalid_Execution()
{
int years2Sub = 2;
int months2Sub = 3;
int days2Sub = 9;
/*Invalid subtraction(yearsDiff<=0)*/
DateTime date1 = new DateTime(2019, 1, 1);
DateTime date2 = new DateTime(2019, 7, 10);
DateIntervalManager manager = new DateIntervalManager(date1, date2);
Assert.ThrowsException <ArgumentOutOfRangeException>(() => manager.SubtractTime(years2Sub, months2Sub, days2Sub));
/*Invalid subtraction(daysDiff<0)*/
date1.AddYears(-3);
months2Sub = 7;
days2Sub = 10;
Assert.ThrowsException <ArgumentOutOfRangeException>(() => manager.SubtractTime(years2Sub, months2Sub, days2Sub));
/*Invalid subtraction(monthsDiff<0)*/
date1.AddYears(3);
months2Sub = 7;
Assert.ThrowsException <ArgumentOutOfRangeException>(() => manager.SubtractTime(years2Sub, months2Sub, days2Sub));
}
public void Test_SubtractTime_Normal_Execution()
{
int years2Sub = 2;
int months2Sub = 3;
int days2Sub = 9;
/*Valid dates for subtraction*/
DateTime date1 = new DateTime(2016, 1, 1);
DateTime date2 = new DateTime(2019, 7, 10);
DateIntervalManager manager = new DateIntervalManager(date1, date2);
manager.SubtractTime(years2Sub, months2Sub, days2Sub);
Assert.AreEqual(1, manager.Years, "Expected and actual years differ.");
Assert.AreEqual(3, manager.Months, "Expected and actual months differ.");
Assert.AreEqual(0, manager.Days, "Expected and actual days differ.");
}
