// Test toString with a manually constructed UnicodeString (simulating rpc.unicode_string input)
        rpc.unicode_string dummyRus = new rpc.unicode_string();
        dummyRus.buffer = new short[] { 'T', 'e', 's', 't', 'i', 'n', 'g' };
        dummyRus.length = 14; // 7 characters * 2 bytes/char
        dummyRus.maximum_length = 14;
        UnicodeString manualUnicodeString = new UnicodeString(dummyRus, false);

        dnsDomainInfo.name = new rpc.unicode_string();
        dnsDomainInfo.name.length = 8;
        dnsDomainInfo.name.maximum_length = 16;
        dnsDomainInfo.name.buffer = new short[] { 'T', 'E', 'S', 'T' };

        dnsDomainInfo.dns_domain = new rpc.unicode_string();
        dnsDomainInfo.dns_domain.length = 16;
        dnsDomainInfo.dns_domain.maximum_length = 32;

        lsarpc.LsarDnsDomainInfo dnsDomainInfo = new lsarpc.LsarDnsDomainInfo();
        dnsDomainInfo.name = new rpc.unicode_string();
        dnsDomainInfo.name.buffer = null;
        dnsDomainInfo.dns_domain = new rpc.unicode_string();
        dnsDomainInfo.dns_domain.buffer = null;
        dnsDomainInfo.dns_forest = new rpc.unicode_string();
        dnsDomainInfo.dns_forest.buffer = null;
        dnsDomainInfo.domain_guid = new rpc.uuid_t();

            // Default constructor
        }

        /** Domain NetBIOS name. */
        public rpc.unicode_string name;
        /** DNS domain name. */
        public rpc.unicode_string dns_domain;
        /** DNS forest name. */
        public rpc.unicode_string dns_forest;
        /** Domain GUID. */
        public rpc.uuid_t domain_guid;
        /** Domain security identifier. */

            // Default constructor
        }

        /** Domain NetBIOS name. */
        public rpc.unicode_string name;
        /** DNS domain name. */
        public rpc.unicode_string dns_domain;
        /** DNS forest name. */
        public rpc.unicode_string dns_forest;
        /** Domain GUID. */
        public rpc.uuid_t domain_guid;
        /** Domain security identifier. */

    @Mock
    private NdrBuffer mockDeferredBuffer;

    @Mock
    private rpc.policy_handle mockPolicyHandle;

    @Mock
    private rpc.sid_t mockSidT;

    @Mock
    private rpc.unicode_string mockUnicodeString;

    @Mock
    private lsarpc.LsarSidArray mockLsarSidArray;

    @BeforeEach
    void setUp() {
        // Directly set the deferred field on the mock

    @Mock
    private NdrBuffer mockDeferredBuffer;

    @Mock
    private rpc.policy_handle mockPolicyHandle;

    @Mock
    private rpc.sid_t mockSidT;

    @Mock
    private rpc.unicode_string mockUnicodeString;

    @Mock
    private lsarpc.LsarSidArray mockLsarSidArray;

    @BeforeEach
    void setUp() {
        // Directly set the deferred field on the mock

            case jcifs.SID.SID_TYPE_ALIAS:
            case jcifs.SID.SID_TYPE_WKN_GRP:
                final rpc.unicode_string ustr = rpc.domains.domains[resp.sid_index].name;
                out.domainName = new UnicodeString(ustr, false).toString();
                break;
            }

            final UnicodeString ucstr = new UnicodeString(resp.name, false);
            out.acctName = ucstr.toString();
            out.type = resp.sid_type;

                final int sid_index = rpc.names.names[si].sid_index;
                final rpc.unicode_string ustr = rpc.domains.domains[sid_index].name;
                sids[si].domainName = new UnicodeString(ustr, false).toString();
                break;
            }

            sids[si].acctName = new UnicodeString(rpc.names.names[si].name, false).toString();
            sids[si].origin_server = null;

            names.names[0].name = new UnicodeString("alice", false);
            names.names[0].sid_index = 0;
            // Second is a domain group
            names.names[1] = new lsarpc.LsarTranslatedName();
            names.names[1].sid_type = (short) jcifs.SID.SID_TYPE_DOM_GRP;
            names.names[1].name = new UnicodeString("Domain Users", false);
            names.names[1].sid_index = 0;