assertFalse(result.isPresent());

        result = ldapManager.getSAMAccountGroupName("   ", "testGroup");
        assertFalse(result.isPresent());
    }

    @Test
    public void test_getSAMAccountGroupName_withNullGroupName() {
        LdapManager ldapManager = new LdapManager();
        ldapManager.init();

        // Null groupName should return empty