User user = createTestUser("testuser");
        User result = authenticationManager.load(user);
        assertEquals(user, result);
    }

    // Test load with single chain
    public void test_load_singleChain() {
        User user = createTestUser("testuser");
        User loadedUser = createTestUser("loadeduser");
        TestAuthenticationChain chain = new TestAuthenticationChain();
        chain.loadResult = loadedUser;