private void Context()
 {
     ManualTestingTimer = new ManualTimer();
     AdvisorAlarmClock = new AlarmClock(ManualTestingTimer);
     AdvisorAlarmClock.OnAlarm += (sndr, e) =>
                                      {
                                          AlarmWentOff = true;
                                          CurrentTime = e.Time;
                                      };
     GivenInterval = 100;
     AdvisorAlarmClock.SetFor(GivenInterval);
 }