public void StartTimeBeforeEndTime()
        {
            //test start time before midnight
            DateTime startTime = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, 7, 20, 29);
            DateTime endTime   = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, 11, 20, 29);

            Assert.IsTrue(sitter.StartTimeBeforeEndTime(startTime, endTime));

            //test start time after midnight
            startTime = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day, 1, 20, 29);
            endTime   = new DateTime(DateTime.Today.Year, DateTime.Today.Month, DateTime.Today.Day + 1, 3, 20, 29);
            Assert.IsTrue(sitter.StartTimeBeforeEndTime(startTime, endTime));
        }