public void CalculateTimeToRunInDays()
{
//arrange
Scheduler.Scheduler scheduler = new Scheduler.Scheduler();
DateTime currentDateTime = new DateTime(2018, 06, 11, 21, 30, 00);
DateTime expectedDateTime = new DateTime(2018, 06, 12, 21, 30, 00);
int interval = 1;
//act
var actualDateTime = scheduler.CalculateTimeToRunInDays(interval, currentDateTime);
//assert
Assert.AreEqual(expectedDateTime, actualDateTime);
}