public void DeleteKundeTest()
 {
     TestEnvironmentHelper.InitializeTestData();
     AutoReservationBusinessComponent autoReservation = new AutoReservationBusinessComponent();
     int count = autoReservation.GetKunden().Count;
     Kunde delete = autoReservation.GetKunden()[0];
     int id = delete.Id;
     autoReservation.DeleteKunde(delete);
     Assert.AreEqual(count - 1, autoReservation.GetKunden().Count);
     Assert.IsNull(autoReservation.GetKunde(id));
 }