.NET Scheduled Timer

using System;
using Schedule;

namespace TimerTest
{
	/// <summary>
	/// Summary description for Class1.
	/// </summary>
	class Class1
	{
		static void Main(string[] args)
		{
			try
			{
				RangeTest();
				IScheduledItem item = new SimpleInterval(DateTime.Now, new TimeSpan(0, 0, 3));
//				item = new BlockWrapper(item, "ByMinute", "15", "45");
				_Timer.AddJob(item, _f);
				_Timer.Error += new ExceptionEventHandler(_Timer_Error);
				_Timer.Start();
			} 
			catch (Exception e)
			{
				Console.WriteLine(e.Message);
				Console.WriteLine(e.StackTrace);
			}
			finally
			{
				try { while(Console.ReadLine().ToLower() != "q"); } catch {};
			}
		}
		static ScheduleTimer _Timer = new ScheduleTimer();

		private delegate void f(DateTime time);
		static f _f = new f(WriteEvent);

		public static void WriteEvent(DateTime time)
		{
			DateTime actual = DateTime.Now;
			Console.WriteLine("{0} - {1} = {2}", actual, time, (actual-time).TotalMilliseconds);
		}

		private static void _Timer_Error(object sender, ExceptionEventArgs Args)
		{
			Console.WriteLine(Args.EventTime);
			Console.WriteLine(Args.Error.Message);
			Console.WriteLine(Args.Error.StackTrace);
		}

		private static void RangeTest()
		{
			IScheduledItem item = new ScheduledTime("Weekly", "1,0:0:0");
			TestItem(item, DateTime.Parse("1/1/04"), true, DateTime.Parse("1/5/04"));
			TestItem(item, DateTime.Parse("1/2/04"), true, DateTime.Parse("1/5/04"));
			TestItem(item, DateTime.Parse("12/30/03"), true, DateTime.Parse("1/5/04"));
			TestItem(item, DateTime.Parse("1/5/04"), true, DateTime.Parse("1/5/04"));
			TestItem(item, DateTime.Parse("1/5/04"), false, DateTime.Parse("1/12/04"));
			TestItem(item, DateTime.Parse("1/6/04"), false, DateTime.Parse("1/12/04"));
			TestItem(new ScheduledTime("Weekly", "0,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/4/04"));
			TestItem(new ScheduledTime("Weekly", "1,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/5/04"));
			TestItem(new ScheduledTime("Weekly", "2,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/6/04"));
			TestItem(new ScheduledTime("Weekly", "3,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/7/04"));
			TestItem(new ScheduledTime("Weekly", "4,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/1/04"));
			TestItem(new ScheduledTime("Weekly", "5,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/2/04"));
			TestItem(new ScheduledTime("Weekly", "6,0:0:0"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/3/04"));
			TestItem(new ScheduledTime("Weekly", "4,0:0:0"), DateTime.Parse("1/1/04"), false, DateTime.Parse("1/8/04"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/1/04"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 3:00:00"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:00:00"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:33:00"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:34:00"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:34:23"), true, DateTime.Parse("1/4/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:34:23"), false, DateTime.Parse("1/11/04 6:34:23"));
			TestItem(new ScheduledTime("Weekly", "0,6:34:23"), DateTime.Parse("1/4/04 6:34:24"), true, DateTime.Parse("1/11/04 6:34:23"));
		}

		private static void TestItem(IScheduledItem item, DateTime input, bool AllowExact, DateTime ExpectedOutput)
		{
			DateTime Result = item.NextRunTime(input, AllowExact);
			if (Result == ExpectedOutput)
				Console.WriteLine("Success");
			else
				Console.WriteLine(string.Format("Failure: Received: {0} Expected: {1}", Result, ExpectedOutput));
		}
	}

}