lenient().when(SmbTransport.getSmbTransport(uniAddress, 0)).thenReturn(smbTransport);

        DfsReferral referral = new DfsReferral();
        referral.server = "dc1.domain.com";
        referral.next = referral;
        lenient().when(smbTransport.getDfsReferrals(auth, "\\domain.com", 1)).thenReturn(referral);

        UniAddress dcAddress = mock(UniAddress.class);

    private DfsReferralRequestBuffer buffer;

    @Nested
    @DisplayName("Constructor Tests")
    class ConstructorTests {

        @Test
        @DisplayName("Should create buffer with simple path and referral level")
        void testConstructorWithSimplePath() {
            String path = "\\\\server\\share";
            int maxReferralLevel = 3;

            buffer = new DfsReferralRequestBuffer(path, maxReferralLevel);

    @Mock
    private jcifs.CIFSContext ctx;

    @Mock
    private SmbSession session;

    @Mock
    private jcifs.DfsReferralData referral;

    @BeforeEach
    void resetMocks() {
        Mockito.reset(transport, ctx, session, referral);
    }

    // Happy path: hasCapability returns based on provided capability codes
    @ParameterizedTest

    }

    @Test
    @DisplayName("Test DFS referral data")
    void testDfsReferralData() throws Exception {
        String url = "smb://server/share/path/";
        DummySmbResourceLocator loc = new DummySmbResourceLocator(url);

        // Initially no DFS referral
        assertNull(loc.getDfsReferral());

        // Set and retrieve DFS referral
        loc.setDfsReferral(dfs);

        }
    }

    @Nested
    @DisplayName("Combine Tests")
    class CombineTests {

        @Test
        @DisplayName("Should combine two referral data objects")
        void testCombine() {
            // Setup first referral
            DfsReferralDataImpl first = new DfsReferralDataImpl();
            when(mockReferral.getTtl()).thenReturn(300);
            when(mockReferral.getRFlags()).thenReturn(0);

     */
    boolean ensureConnected() throws IOException;

    /**
     * Gets DFS referrals for the specified path.
     *
     * @param ctx the CIFS context
     * @param name the DFS path to resolve
     * @param targetHost the target host name
     * @param targetDomain the target domain
     * @param rn the referral number
     * @return dfs referral
     * @throws SmbException if an SMB error occurs

     *         itself.
     */

    String getName();

    /**
     * Returns the DFS referral data associated with this resource if it has been resolved through DFS.
     *
     * @return dfs referral data
     */
    DfsReferralData getDfsReferral();

    /**
     * Everything but the last component of the URL representing this SMB

     * @throws CIFSException if an error occurs during comparison
     */
    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**
     * Internal: for testing only
     *
     * @param dr the DFS referral data to process
     * @param reqPath the requested path to resolve
     * @return resolved unc path
     */
    String handleDFSReferral(DfsReferralData dr, String reqPath);

            // Test with concrete implementation
            assertDoesNotThrow(() -> concreteImplementation.stripPathConsumed(0));
        }

        @Test
        @DisplayName("Should return next referral data")
        void testNext() {
            // Test with mock
            when(mockReferralData.next()).thenReturn(mockReferralData);
            DfsReferralDataInternal next = mockReferralData.next();

        // Should not throw any exception.
        assertDoesNotThrow(() -> dfsImpl.cache(mockContext, "invalidpath", mockReferral));
    }

    @Test
    void testCache_ValidPath() {
        // Scenario: A valid referral is cached.
        DfsReferralDataInternal mockReferral = mock(DfsReferralDataInternal.class);
        when(mockReferral.getPathConsumed()).thenReturn(15); // e.g., "\\\\server\\share".length()