static void Main(string[] args)
        {
            InitData();


            using (ApplicationDbContext ctx = new ApplicationDbContext())
            {
                //EntityFrameworkPupilRepository entityFrameworkPupilRepository = new EntityFrameworkPupilRepository(ctx);
                InMemoryPupilRepository inMemoryPupilRepository = new InMemoryPupilRepository();
                PrintAbendschule(inMemoryPupilRepository);
                PrintKolleg(inMemoryPupilRepository);
            }
        }
 public InMemoryUnitOfWork()
 {
     PupilRepository = new InMemoryPupilRepository();
 }