Hashtable<String, String> emptyEnv = new Hashtable<>();
        LdapUser user = new LdapUser(emptyEnv, "user");
        assertTrue(user.getEnvironment().isEmpty());
    }

    @Test
    public void test_getPermissions_withoutLdapConfig() {
        // Test when baseDn or accountFilter is blank
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getLdapBaseDn() {