public void GetNextOccurrence_Boundaries_ReturnsExpectedNextOccurrence()
{
WeeklySchedule schedule = new WeeklySchedule();
schedule.Add(DayOfWeek.Monday, new TimeSpan(9, 0, 0));
schedule.Add(DayOfWeek.Wednesday, new TimeSpan(8, 30, 0));
schedule.Add(DayOfWeek.Wednesday, new TimeSpan(18, 0, 0));
schedule.Add(DayOfWeek.Friday, new TimeSpan(10, 0, 0));
// before time on last schedule day - expect last schedule time
DateTime nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-05-29T09:59:59"));
Assert.Equal(DayOfWeek.Friday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(10, 0, 0), nextOccurrence.TimeOfDay);
// after time on last schedule day - expect advance to beginning of schedule
nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-05-29T10:00:01"));
Assert.Equal(DayOfWeek.Monday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(9, 0, 0), nextOccurrence.TimeOfDay);
nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-06-01T08:59:59"));
Assert.Equal(DayOfWeek.Monday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(9, 0, 0), nextOccurrence.TimeOfDay);
nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-06-01T09:00:01"));
Assert.Equal(DayOfWeek.Wednesday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(8, 30, 0), nextOccurrence.TimeOfDay);
nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-06-03T08:30:01"));
Assert.Equal(DayOfWeek.Wednesday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(18, 00, 0), nextOccurrence.TimeOfDay);
nextOccurrence = schedule.GetNextOccurrence(DateTime.Parse("2015-06-03T18:00:01"));
Assert.Equal(DayOfWeek.Friday, nextOccurrence.DayOfWeek);
Assert.Equal(new TimeSpan(10, 00, 0), nextOccurrence.TimeOfDay);
}
public void GetNextOccurrence_EmptySchedule_Throws()
{
WeeklySchedule schedule = new WeeklySchedule();
Assert.Throws<InvalidOperationException>(() => schedule.GetNextOccurrence(DateTime.Now));
}
private void VerifySchedule(Tuple<DayOfWeek, TimeSpan>[] scheduleData, DateTime now)
{
WeeklySchedule schedule = new WeeklySchedule();
foreach (var occurrence in scheduleData)
{
schedule.Add(occurrence.Item1, occurrence.Item2);
}
var expectedSchedule = scheduleData.GroupBy(p => p.Item1);
// loop through the full schedule a few times, ensuring we cross over
// a month boundary ensuring day handling is correct
for (int i = 0; i < 10; i++)
{
// run through the entire schedule once, ordering the expected times per day
foreach (var expectedScheduleDay in expectedSchedule)
{
foreach (TimeSpan time in expectedScheduleDay.OrderBy(p => p.Item2).Select(p => p.Item2))
{
DateTime nextOccurrence = schedule.GetNextOccurrence(now);
Assert.Equal(expectedScheduleDay.Key, nextOccurrence.DayOfWeek);
Assert.Equal(time, nextOccurrence.TimeOfDay);
now = nextOccurrence + TimeSpan.FromSeconds(1);
}
}
}
}