public void Test_DeleteOne_DeletesOnePatron()
        {
            Patron newPatron1 = new Patron ("Jane", "Doe", "555-555-5555");
              Patron newPatron2 = new Patron ("John", "Watson", "444-444-4444");
              newPatron1.Save();
              newPatron2.Save();
              List<Patron> newList = Patron.GetAll();

              newPatron1.DeleteOne();

              List<Patron> resultList = Patron.GetAll();
              List<Patron> testList = new List<Patron> {newPatron2};

              Assert.Equal(testList, resultList);
        }