seam security create group and add user to group

gistfile1.java

    @Inject
    private IdentitySession identitySession;

    @Inject
    private Identity identity;

    @Inject
    private UserTransaction tx;

    @Before
    public void setupTestUser() throws IdentityException, FeatureNotSupportedException, SystemException, NotSupportedException, RollbackException, HeuristicRollbackException, HeuristicMixedException {
        final PersistenceManager pm = identitySession.getPersistenceManager();
        final AttributesManager am = identitySession.getAttributesManager();
        final RelationshipManager rm = identitySession.getRelationshipManager();

        // Group creation must be done in a separate transaction so it's flushed to the DB before adding members to that group
        tx.begin();
        // Setup the group we want our user to belong to
        final Group memberGroup = pm.createGroup("member", "USER");
        final User user = pm.createUser("test");

        am.updatePassword(user, "password");
        tx.commit();

        // Now we can go ahead and create the association
        tx.begin();
        rm.associateUser(memberGroup, user);
        tx.commit();
    }

    @Test
    public void assertUserCanAuthenticate(Credentials credentials) {
        credentials.setUsername("test");
        credentials.setCredential(new PasswordCredential("password"));
        assertThat(identity.login(), is(Identity.RESPONSE_LOGIN_SUCCESS));
    }