GetUsers() публичный Метод

public GetUsers ( ) : IEnumerable
Результат IEnumerable
        public void TestUpdateUser()
        {
            _authorizationService = new AbilityAuthorizationService(new UserRepository(), new RoleRepository(), new AbilityRepository());
            _authorizationService.AddUser(_user1);
            _authorizationService.AddUser(_user2);
            IEnumerable<IUser> users = _authorizationService.GetUsers();
            Assert.AreEqual(2, users.Count());
            Assert.AreEqual(_user1, users.First());
            Assert.AreEqual(_user2, users.Last());

            _user2.Name = "UserUpdate";
            _authorizationService.UpdateUser(_user2);
            users = _authorizationService.GetUsers();
            Assert.AreEqual(2, users.Count());
            Assert.AreEqual(_user1, users.First());
            Assert.AreEqual(_user2, users.Last());
            Assert.AreEqual("UserUpdate", users.Last().Name);
        }
        public void TestRemoveUser()
        {
            _authorizationService = new AbilityAuthorizationService(new UserRepository(), new RoleRepository(), new AbilityRepository());
            _authorizationService.AddUser(_user1);
            _authorizationService.AddUser(_user2);
            IEnumerable<IUser> users = _authorizationService.GetUsers();
            Assert.AreEqual(2, users.Count());
            Assert.AreEqual(_user1, users.First());
            Assert.AreEqual(_user2, users.Last());

            _authorizationService.RemoveUser("User1");
            users = _authorizationService.GetUsers();
            Assert.AreEqual(1, users.Count());
            Assert.AreEqual(_user2, users.First());
        }