}

    @Test
    public void test_user_departmentNumber() {
        final User user = new User();
        assertNull(user.getDepartmentNumber());

        user.setDepartmentNumber("DEPT001");
        assertEquals("DEPT001", user.getDepartmentNumber());
    }

    @Test
    public void test_user_description() {
        final User user = new User();

                setAttributeValue(result, fessConfig.getLdapAttrPreferredLanguage(), o -> user.setPreferredLanguage(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrDepartmentNumber(), o -> user.setDepartmentNumber(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrUidNumber(), o -> user.setUidNumber(DfTypeUtil.toLong(o)));