public override IEnumerable<DateTime> GetForYear(Holiday holiday, int year)
{
if (year < DateTime.MinValue.Year)
throw new ArgumentOutOfRangeException("year", "value for year is below the minimum value");
var daysInMonthThisYear = DateTime.DaysInMonth(year, holiday.FirstTime.Month);
if (holiday.FirstTime.Day > daysInMonthThisYear)
yield break;
var firstDayThisYear = new DateTime(year, holiday.FirstTime.Month, holiday.FirstTime.Day);
int count = 0;
int daysFilled = 0;
while (daysFilled < holiday.NumberOfDays)
{
var date = firstDayThisYear.AddDays(count);
count++;
if (SubstituteWeekends && date.IsWeekend())
continue;
yield return date;
daysFilled++;
}
}
public override IEnumerable<DateTime> GetForYear(Holiday holiday, int year)
{
if (year < DateTime.MinValue.Year)
throw new ArgumentOutOfRangeException("year", "value for year is below the minimum value");
var firstDayInMonth = new DateTime(year, (int) Month, 1);
var days = firstDayInMonth.AllDaysInTheMonth();
var firstHolidayDay = days.FirstOrDefault(d => d.DayOfWeek == DayOfWeek && d.WeekOfMonth() == (int) Week);
if (firstHolidayDay == default(DateTime))
yield break; // we could not find that recurrance for the given year
int count = 0;
int daysFilled = 0;
while (daysFilled < holiday.NumberOfDays)
{
var date = firstHolidayDay.AddDays(count);
count++;
if (SubstituteWeekends && date.IsWeekend())
continue;
daysFilled++;
yield return date;
}
}
static void Main(string[] args)
{
/// TASK 1: Weekday counting
// Monday 07-Oct-2013 and Wednesday 09-Oct-2013 : should return 1
int value1 = BusinessDayCounter.WeekdaysBetweenTwoDates(new DateTime(2013, 10, 7), new DateTime(2013, 10, 9));
Debug.Assert(value1 == 1);
// Saturday 05-Oct-2013 and Monday 14-Oct-2013 : should return 5
int value2 = BusinessDayCounter.WeekdaysBetweenTwoDates(new DateTime(2013, 10, 5), new DateTime(2013, 10, 14));
Debug.Assert(value2 == 5);
// Monday 07-Oct-2013 and Wednesday 01-Jan-2014 : should return 61
int value3 = BusinessDayCounter.WeekdaysBetweenTwoDates(new DateTime(2013, 10, 7), new DateTime(2014, 1, 1));
Debug.Assert(value3 == 61);
// Monday 07-Oct-2013 and Saturday 05-Oct-2013 : should return 0 (second date earlier than first date)
int value4 = BusinessDayCounter.WeekdaysBetweenTwoDates(new DateTime(2013, 10, 7), new DateTime(2013, 10, 5));
Debug.Assert(value4 == 0);
/// TASK 2: Business day counting
// Public holiday list containing Christmas Day, Boxing Day and New Year's Day
List<DateTime> publicHolidays = new List<DateTime>
{
new DateTime(2013, 12, 25),
new DateTime(2013, 12, 26),
new DateTime(2014, 1, 1)
};
// Monday 07-Oct-2013 and Wednesday 09-Oct-2013 : should still return 1
int value5 = BusinessDayCounter.BusinessDaysBetweenTwoDates(new DateTime(2013, 10, 7), new DateTime(2013, 10, 9), publicHolidays);
Debug.Assert(value5 == 1);
// Tuesday 24-Dec-2013 and Friday 27-Dec-2013 : should return 0, both days are public holidays
int value6 = BusinessDayCounter.BusinessDaysBetweenTwoDates(new DateTime(2013, 12, 24), new DateTime(2013, 12, 27), publicHolidays);
Debug.Assert(value6 == 0);
// Monday 07-Oct-2013 and Wednesday 01-Jan-2014 : should return 59
int value7 = BusinessDayCounter.BusinessDaysBetweenTwoDates(new DateTime(2013, 10, 7), new DateTime(2014, 1, 1), publicHolidays);
Debug.Assert(value7 == 59);
// test a fixed date recurrance holiday
var fixedRecurranceHoliday = new Holiday(new DateTime(1981, 8, 15), 3);
var value8 = fixedRecurranceHoliday.GetForYear(2014);
Debug.Assert(value8.Count() == 3 && value8.First() == new DateTime(2014, 8, 15) && value8.All(d => d.IsBusinessDay()));
// test a specific day of week/month annual recurrance holiday
var variable_reccurance = new DayOfWeekAnnualReccurance(DayOfWeek.Thursday, WeekOfMonth.SecondWeek, Month.August);
var variableRecurranceHoliday = new Holiday(new DateTime(1981, 8, 18), 3, variable_reccurance);
var value9 = variableRecurranceHoliday.GetForYear(2014);
Debug.Assert(value9.Count() == 3 && value9.First() == new DateTime(2014, 8, 14));
}
public abstract IEnumerable <DateTime> GetForYear(Holiday holiday, int year);
public abstract IEnumerable<DateTime> GetForYear(Holiday holiday, int year);
