public async Task GetUserByLogin()
        {
            // Create a session and user store for this test.
            var session   = SessionFactory.OpenSession();
            var userStore = new TestUserStore(session);
            // Create and save a user with a login.
            var user = new TestUser {
                UserName = "******"
            };
            var login = new UserLoginInfo("TestProviderGetUser", "ProviderKeyGetUser", "TestProviderGetUser");

            using (var transaction = session.BeginTransaction())
            {
                await userStore.CreateAsync(user);

                await userStore.AddLoginAsync(user, login);

                transaction.Commit();
            }
            // Check the user has an id and the login.
            Assert.IsNotNull(user.Id);
            Assert.AreEqual(user.Logins.Count, 1);

            // Create a new session and user store for this test, so that we actually hit the database and not the cache.
            userStore.Dispose();
            session.Dispose();
            session   = SessionFactory.OpenSession();
            userStore = new TestUserStore(session);
            // Load the user.
            TestUser loadUser;

            using (var transaction = session.BeginTransaction())
            {
                loadUser = await userStore.FindByLoginAsync("TestProviderGetUser", "ProviderKeyGetUser");

                transaction.Commit();
            }
            // Check we have the same user and it has a single login.
            Assert.AreEqual(loadUser.Id, user.Id);
            Assert.AreEqual(loadUser.Logins.Count, 1);
        }