}

    @Test
    public void test_escapeValue_empty() {
        assertEquals("", LdapUtil.escapeValue(""));
    }

    @Test
    public void test_escapeValue_noSpecialChars() {
        assertEquals("admin", LdapUtil.escapeValue("admin"));
        assertEquals("john.doe", LdapUtil.escapeValue("john.doe"));
        assertEquals("user123", LdapUtil.escapeValue("user123"));