String reqPath = "\\\\server\\share\\path\\file";
            // Ensure consumed is within bounds to avoid StringIndexOutOfBoundsException
            consumed = Math.min(consumed, reqPath.length());

            referralData = DfsReferralDataImpl.fromReferral(mockReferral, reqPath, System.currentTimeMillis() + 10000, consumed);
        }
    }

    @Nested
    @DisplayName("Domain and Host Fixup Tests")

                        + consumed);
            }
            dr.pathConsumed = consumed;
        } else {
            if (log.isDebugEnabled()) {
                log.debug("Node " + ref.getNode() + " path " + reqPath + " remain " + reqPath.substring(consumed) + " path consumed "
                        + consumed);
            }

            int bytesRead = response.readDataWireFormat(buffer, 0, buffer.length);

            assertTrue(bytesRead > 0);
            // readDataWireFormat returns bytes consumed from header, not full buffer
            assertEquals(28, bytesRead); // Header + one referral structure
            assertNotNull(response.getDfsResponse());
        }

        @Test

    @Test
    @DisplayName("Test decode returns correct bytes consumed")
    void testDecodeBytesConsumed() throws SMBProtocolDecodingException {
        // Prepare minimal buffer
        byte[] buffer = new byte[24];

        // Test with offset 0
        int bytesDecoded = response.decode(buffer, 0, 24);
        assertEquals(24, bytesDecoded, "Should return 24 bytes consumed from offset 0");

        // Test with different offset

        int pathConsumed = dr.getPathConsumed();
        if (pathConsumed < 0) {
            log.warn("Path consumed out of range " + pathConsumed);
            pathConsumed = 0;
        } else if (pathConsumed > this.unc.length()) {
            log.warn("Path consumed out of range " + pathConsumed);
            pathConsumed = oldUncPath.length();
        }

        if (log.isDebugEnabled()) {

        assertEquals(2, sis.read());

        // Read second message
        assertEquals(3, sis.read());
        assertEquals(4, sis.read());
        assertEquals(5, sis.read());

        // After all data is consumed, next read throws IOException
        assertThrows(IOException.class, () -> sis.read());
    }

    @Test
    @DisplayName("EOF handling when stream ends mid-header")

        // Verify
        assertEquals(expectedFilename, fileBothDirectoryInfo.getFilename());
    }

    @Test
    @DisplayName("Test decode returns correct bytes consumed")
    void testDecodeBytesConsumed() throws SMBProtocolDecodingException {
        // Prepare test data
        String filename = "testfile.txt";
        byte[] buffer = createValidBuffer(filename, "TESTFI~1.TXT", true);

            assertDoesNotThrow(() -> concreteImplementation.fixupDomain(domain));
        }

        @Test
        @DisplayName("Should strip path consumed")
        void testStripPathConsumed() {
            int consumedAmount = 5;

            // Test with mock
            doNothing().when(mockReferralData).stripPathConsumed(consumedAmount);

        if (ki < key.length()) {
            key = key.substring(0, ki);
        }

        /* Subtract the server and share from the pathConsumed so that
         * it refects the part of the relative path consumed and not
         * the entire path.
         */
        dr.pathConsumed -= 1 + server.length() + 1 + share.length();

        if (referrals != null && System.currentTimeMillis() + 10000 > referrals.expiration) {

        assertEquals("smb://dfs-server/dfs-share" + l.getUNCPath().replace('\\', '/'), l.getDfsPath());
        assertEquals("dfs-share", l.getShare());

        // Path consumed negative -> coerced to 0
        when(dr.getPathConsumed()).thenReturn(-1);
        String unc2 = l.handleDFSReferral(dr, null);
        assertTrue(unc2.contains("dfs/path") || unc2.contains("dfs\\path"));
    }