// Test with mock
            when(mockReferralData.getLink()).thenReturn(link);
            assertEquals(link, mockReferralData.getLink());
            verify(mockReferralData, times(1)).getLink();

            // Test with concrete implementation
            concreteImplementation.setLink(link);
            assertEquals(link, concreteImplementation.getLink());
        }

        @Test

        }

        @Test
        @DisplayName("Should get and set link")
        void testLink() {
            assertNull(referralData.getLink());
            referralData.setLink("\\\\server\\share\\link");
            assertEquals("\\\\server\\share\\link", referralData.getLink());
        }

        @Test
        @DisplayName("Should get and set key")
        void testKey() {

            }
            if (link.startsWith("/")) {
                redirect = ftpInfo.toUrl(file.getLink());
            } else if (link.startsWith("../")) {
                redirect = ftpInfo.toChildUrl(file.getLink());
            } else {
                redirect = ftpInfo.toChildUrl("../" + file.getLink());
            }
            if (!uri.equals(redirect)) {

        } else {
            link = path;
        }

        if (log.isTraceEnabled()) {
            log.trace("Initial link is " + link);
        }

        if (dr == null || !link.equals(dr.getLink())) {
            while (true) {
                dr = links.map.get(link);

                if (dr != null) {
                    if (log.isTraceEnabled()) {
                        log.trace("Found at " + link);

     */
    public void setDomain(final String domain) {
        this.domain = domain;
    }

    @Override
    public String getLink() {
        return this.link;
    }

    @Override
    public void setLink(final String link) {
        this.link = link;
    }

    /**
     * @return the key
     */
    @Override
    public String getKey() {

    InetAddress LADDR = Config.getLocalHost();
    /** Local port to bind to */
    int LPORT = Config.getInt("jcifs.smb1.smb.client.lport", 0);
    /** Maximum multiplex count */
    int MAX_MPX_COUNT = Config.getInt("jcifs.smb1.smb.client.maxMpxCount", DEFAULT_MAX_MPX_COUNT);
    /** Send buffer size in bytes */
    int SND_BUF_SIZE = Config.getInt("jcifs.smb1.smb.client.snd_buf_size", DEFAULT_SND_BUF_SIZE);
    /** Receive buffer size in bytes */

    @Test
    void testToDisplayStringUnresolved() throws SmbException {
        SID sid = new SID(adminSidString);
        assertEquals(adminSidString, sid.toDisplayString());
    }

    /**
     * Test getting the domain SID.
     *
     * @throws SmbException if the SID string is invalid
     */
    @Test
    void testGetDomainSid() throws SmbException {
        // Create a mock RPC SID to simulate a user SID

        assertEquals(0, serverData.encryptionKeyLength);
        assertNull(serverData.encryptionKey);
        assertNull(serverData.guid);
    }

    /**
     * Test setting and getting byte field (sflags)
     */
    @ParameterizedTest
    @ValueSource(bytes = { 0x00, 0x01, 0x7F, (byte) 0x80, (byte) 0xFF })
    @DisplayName("Test sflags field with various byte values")

            assertEquals(Trans2QueryPathInformationResponse.SMB_QUERY_FILE_BASIC_INFO, infoLevel.getInt(resp));

            // Verify subCommand is set correctly
            Field subCmd = SmbComTransactionResponse.class.getDeclaredField("subCommand");
            subCmd.setAccessible(true);
            assertEquals(SmbComTransaction.TRANS2_QUERY_PATH_INFORMATION, subCmd.getInt(resp));
        }

        @Test

    private static final int SND_BUF_SIZE = Config.getInt("jcifs.smb1.netbios.snd_buf_size", DEFAULT_SND_BUF_SIZE);
    private static final int RCV_BUF_SIZE = Config.getInt("jcifs.smb1.netbios.rcv_buf_size", DEFAULT_RCV_BUF_SIZE);
    private static final int SO_TIMEOUT = Config.getInt("jcifs.smb1.netbios.soTimeout", DEFAULT_SO_TIMEOUT);
    private static final int RETRY_COUNT = Config.getInt("jcifs.smb1.netbios.retryCount", DEFAULT_RETRY_COUNT);