@Override
            public String getLdapAdminGroupFilter() {
                return "(cn=%s)";
            }
        };

        // Normal name
        assertEquals("(cn=developers)", fessConfig.getLdapAdminGroupFilter("developers"));

        // Asterisk injection attempt
        assertEquals("(cn=dev\\2a)", fessConfig.getLdapAdminGroupFilter("dev*"));

        // LDAP injection attempt