public void test_getGroupNames() {
        // Test getting group names from permissions
        ComponentUtil.setFessConfig(new FessConfig.SimpleImpl() {
            @Override
            public String getRoleSearchGroupPrefix() {
                return "G";
            }

            @Override
            public String getLdapBaseDn() {
                return "dc=example,dc=com";
            }

    @Override
    public String[] getGroupNames() {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return stream(getPermissions()).get(stream -> stream.filter(s -> s.startsWith(fessConfig.getRoleSearchGroupPrefix()))
                .map(s -> s.substring(1))
                .toArray(n -> new String[n]));
    }

    /**
     * Returns the environment for LDAP connection.
     *

                final String roleName = getSearchRoleName(entryDn);
                final String roleType = updateSearchRoles(roleSet, entryDn, roleName);
                if (fessConfig.getRoleSearchGroupPrefix().equals(roleType) && fessConfig.isLdapSamaccountnameGroup()) {
                    sAMAccountGroupNameSet.add(roleName);
                }
                if (StringUtil.isNotBlank(groupFilter)) {

     *
     * @param name The group name.
     * @return The search role.
     */
    public String getSearchRoleByGroup(final String name) {
        return createSearchRole(ComponentUtil.getFessConfig().getRoleSearchGroupPrefix(), name);
    }

    /**
     * Gets the search role for a given role.
     *
     * @param name The role name.
     * @return The search role.
     */