// Test complex injection: admin)(&(password=*))
        assertEquals("admin\\29\\28&\\28password=\\2a\\29\\29", LdapUtil.escapeValue("admin)(&(password=*))"));
    }

    @Test
    public void test_escapeValue_allSpecialCharsInSequence() {
        assertEquals("\\5c\\2a\\28\\29\\00", LdapUtil.escapeValue("\\*()\0"));
    }

    @Test
    public void test_escapeValue_unicodeCharacters() {