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);
}