public void FindPreviousTest()
{
DateTime now = ClockProxy.Clock.Now;
DateTime currentCalendarYear = Now.CalendarYear;
DateTime previousCalendarYear = currentCalendarYear.AddYears(-1);
DateTimeSet dateTimeSet = new DateTimeSet();
Assert.Null(dateTimeSet.FindPrevious(now));
dateTimeSet.Add(currentCalendarYear);
Assert.Equal(dateTimeSet.FindPrevious(now), now == currentCalendarYear ? (DateTime?)null : currentCalendarYear);
dateTimeSet.Add(previousCalendarYear);
Assert.Equal(dateTimeSet.FindPrevious(now), now == currentCalendarYear ? previousCalendarYear : currentCalendarYear);
Assert.Equal(dateTimeSet.FindPrevious(currentCalendarYear), previousCalendarYear);
dateTimeSet.Remove(currentCalendarYear);
Assert.Equal(dateTimeSet.FindPrevious(now), previousCalendarYear);
dateTimeSet.Remove(previousCalendarYear);
Assert.Null(dateTimeSet.FindPrevious(now));
} // FindPreviousTest
public void FindPreviousTest() {
DateTime now = ClockProxy.Clock.Now;
DateTime currentCalendarYear = TimeTool.CurrentCalendarYear;
DateTime previousCalendarYear = currentCalendarYear.AddYears(-1);
DateTimeSet dateTimeSet = new DateTimeSet();
Assert.AreEqual(dateTimeSet.FindPrevious(now), null);
dateTimeSet.Add(currentCalendarYear);
Assert.AreEqual(dateTimeSet.FindPrevious(now), now == currentCalendarYear ? (DateTime?)null : currentCalendarYear);
dateTimeSet.Add(previousCalendarYear);
Assert.AreEqual(dateTimeSet.FindPrevious(now), now == currentCalendarYear ? previousCalendarYear : currentCalendarYear);
Assert.AreEqual(dateTimeSet.FindPrevious(currentCalendarYear), previousCalendarYear);
dateTimeSet.Remove(currentCalendarYear);
Assert.AreEqual(dateTimeSet.FindPrevious(now), previousCalendarYear);
dateTimeSet.Remove(previousCalendarYear);
Assert.AreEqual(dateTimeSet.FindPrevious(now), null);
}
