public void when_adding_well_formed_member()
        {
            AddMemberToGroupTransaction transaction = new AddMemberToGroupTransaction("pankaj", "sharma",
               "*****@*****.**", 1);
            transaction.Execute();

            IRepository repo = new InMemoryRepository();
            Member member = repo.GetGroupDetails(1).GetMemberByEmail("*****@*****.**");

            Assert.IsNotNull(member);
        }