assertEquals(0x01, SMBUtil.readInt4(buffer, headerStart + 44)); // Write flags

            // Verify data offset is written correctly
            int dataOffsetValue = SMBUtil.readInt2(buffer, headerStart + 2);
            assertEquals(headerStart - 0 + 48, dataOffsetValue); // Assuming getHeaderStart() returns 0

            // Verify data is copied

            int totalBytes = copy.encode(buffer, 0);

            // Then
            assertEquals(HEADER_SIZE + 20 + 24 + 22, totalBytes);
            verify(mockChunk1).encode(buffer, HEADER_SIZE);
            verify(mockChunk2).encode(buffer, HEADER_SIZE + 20);
            verify(mockChunk3).encode(buffer, HEADER_SIZE + 20 + 24);
        }
    }

        failover.handleFailure(failedChannel, error);

        // Verify pending operations were cleared from failed channel
        assertEquals(0, failedChannel.getRequestsPending());

        // Verify alternative channel was selected and operation added
        verify(mockLoadBalancer).selectChannel(mockOperation);
        verify(alternativeChannel).addPendingOperation(mockOperation);
    }

    @Test

        when(locator.handleDFSReferral(referral, reqPath)).thenReturn(resolved);

        String out = locator.handleDFSReferral(referral, reqPath);
        assertEquals(resolved, out);

        // Verify exact argument interaction
        verify(locator, times(1)).handleDFSReferral(referral, reqPath);
        verifyNoMoreInteractions(locator);
    }

    // Edge / invalid: null referral or empty/blank path
    @Test

        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());
        assertEquals(readDataAvailable, response.getReadDataAvailable());
        assertEquals(numberOfMessages, response.getNumberOfMessages());

    }

    /**
     * Verify that root causes are stored and returned correctly.
     */
    @Test
    @DisplayName("Root cause propagation")
    void testRootCausePropagation() {
        Throwable root = mock(Throwable.class);
        SmbException ex = new SmbException(0, root);
        assertSame(root, ex.getRootCause());
    }

    /**

        assertEquals(testScope, mockNetbiosName.getScope());
        assertEquals(testType, mockNetbiosName.getNameType());

        // Verify all methods were called
        verify(mockNetbiosName).getName();
        verify(mockNetbiosName).getScope();
        verify(mockNetbiosName).getNameType();
    }

    @Test
    @DisplayName("Should handle interface method contracts")
    void testMethodContracts() {

        // When
        encryptionContext.secureWipeKeys();

        // Then - Verify keys are wiped (we can't directly access private fields,
        // but we can verify the context behaves correctly after wiping)
        // After wiping, operations that require keys should fail

        NdrSmall ndrSmall = new NdrSmall(0);

        // Call the decode method
        ndrSmall.decode(mockNdrBuffer);

        // Verify that dec_ndr_small was called
        verify(mockNdrBuffer, times(1)).dec_ndr_small();
        // Verify that the value field was updated correctly
        assertEquals(decodedValue, ndrSmall.value, "Value should be updated after decoding.");

        // Verify bytes written
        assertTrue(bytesWritten > 0);
        assertEquals(19, bytesWritten); // 2 + 13 + 2 + 2

        // Verify NET_SHARE_ENUM command (2 bytes)
        assertEquals(SmbComTransaction.NET_SHARE_ENUM, dst[0]);
        assertEquals(0, dst[1]);

        // Verify descriptor (WrLeh\0B13BWz\0 in ASCII - 13 bytes)