public void TestCalculateNextPeriodEndDateFrom_ReturnFromDate_IfStartDateIsNUll()
{
var period = new WeeklyRentalPeriod(1) { PeriodStartDate = null };
DateTime periodEndDate = period.CalculateNextPeriodEndDateFrom(new DateTime(2009, 12, 1));
Assert.AreEqual(new DateTime(2009, 12, 1), periodEndDate);
}
public void TestCalculateNextPeriodEndDateFrom_4WeekPeriod()
{
var period = new WeeklyRentalPeriod(4) { PeriodStartDate = new DateTime(2009, 11, 30) };
DateTime periodEndDate = period.CalculateNextPeriodEndDateFrom(new DateTime(2009, 12, 1));
Assert.AreEqual(new DateTime(2009, 12, 28), periodEndDate);
}