*/
    @Test
    public void testSigningConfiguration() throws CIFSException {
        BaseConfiguration config = new BaseConfiguration(true);

        // Verify IPC signing is enforced (this is a security requirement)
        assertTrue("IPC signing should be enforced for security", config.isIpcSigningEnforced());
    }

    /**
     * Test secure negotiation requirement for SMB3
     */
    @Test

    }

    @Test
    void testSendWithDfsIpcService() throws SmbException {
        SmbTree tree = new SmbTree(session, "testShare", "IPC");
        tree.connectionState = 2; // Connected state
        tree.tid = 123;
        tree.inDfs = true;

        // Create request with path

    }

    DfsReferral getDfsReferrals(final NtlmPasswordAuthentication auth, final String path, int rn) throws SmbException {
        final SmbTree ipc = getSmbSession(auth).getSmbTree("IPC$", null);
        final Trans2GetDfsReferralResponse resp = new Trans2GetDfsReferralResponse();
        ipc.send(new Trans2GetDfsReferral(path), resp);

        if (resp.numReferrals == 0) {
            return null;
        }

    }

    @Test
    void testResolve_IpcRoot() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(false);
        assertNull(dfsResolver.resolve(mockContext, "anyDomain", "IPC$", "anyPath"));
    }

    @Test
    void testResolve_NullDomain() throws CIFSException {
        when(mockConfig.isDfsDisabled()).thenReturn(false);

        String adminShare = validator.validatePath("\\\\server\\C$\\folder");
        assertEquals("\\server\\C$\\folder", adminShare);

        // IPC share should be allowed
        String ipcShare = validator.validatePath("\\\\server\\IPC$");
        assertEquals("\\server\\IPC$", ipcShare);
    }

    @Test
    public void testCaseInsensitivity() throws Exception {

     *
     * @return tree id
     */
    int getTid();

    /**
     * Returns the service type of the connected share (e.g., A: for disk, LPT1: for printer, IPC for named pipe).
     *
     * @return service
     */
    String getService();

    /**
     * Indicates whether the connected share is part of a Distributed File System (DFS) namespace.
     *

    void testGetSmbTreeReuses() {
        SmbSessionImpl session = newSession();
        SmbTreeImpl t1 = session.getSmbTree("IPC$", null);
        SmbTreeImpl t2 = session.getSmbTree("ipc$", null); // case-insensitive match
        assertSame(t1, t2, "Expected same tree instance to be reused");
    }

    @ParameterizedTest
    @NullAndEmptySource

                if (netbiosName != null && tcax.path.endsWith("\\IPC$")) {
                    /* Some pipes may require that the hostname in the tree connect
                     * be the netbios name. So if we have the netbios server name
                     * from the NTLMSSP type 2 message, and the share is IPC$, we
                     * assert that the tree connect path uses the netbios hostname.

    }

    private String makePipeUrl() {
        final DcerpcBinding binding = getBinding();
        StringBuilder url =
                new StringBuilder("smb://").append(binding.getServer()).append("/IPC$/").append(binding.getEndpoint().substring(6));

        String params = "";
        final String server = (String) binding.getOption("server");
        if (server != null) {
            params += "&server=" + server;

        @Override
        public synchronized DfsReferral resolve(String domain, String root, String path, NtlmPasswordAuthentication auth)
                throws SmbAuthException {
            if (disabled || root.equals("IPC$")) {
                return null;
            }
            return super.resolve(domain, root, path, auth);
        }
    }

    @BeforeEach
    void setUp() {
        dfs = new Dfs();