// When
            int bytesWritten = chunk.encode(buffer, startIndex);

            // Then
            assertEquals(EXPECTED_SIZE, bytesWritten);
            assertEquals(0L, SMBUtil.readInt8(buffer, startIndex));
            assertEquals(0L, SMBUtil.readInt8(buffer, startIndex + 8));
            assertEquals(0, SMBUtil.readInt4(buffer, startIndex + 16));
        }

        @Test

        byte[] buffer = new byte[100];
        int startIndex = 10;
        buffer[startIndex] = 1; // replaceIfExists = true
        SMBUtil.writeInt4(nameBytes.length, buffer, startIndex + 16);
        System.arraycopy(nameBytes, 0, buffer, startIndex + 20, nameBytes.length);

        FileRenameInformation2 info = new FileRenameInformation2();
        int bytesRead = info.decode(buffer, startIndex, buffer.length - startIndex);

            // When
            int bytesWritten = copy.encode(buffer, startIndex);

            // Then
            assertEquals(HEADER_SIZE + (3 * CHUNK_SIZE), bytesWritten);

            // Verify chunk count
            assertEquals(3, SMBUtil.readInt4(buffer, startIndex + SOURCE_KEY_SIZE));

            // Verify first chunk
            int chunkStart = startIndex + HEADER_SIZE;

        byte[] buffer = new byte[100];
        int startIndex = 5;
        original.encode(buffer, startIndex);

        // Now decode into a new instance
        int bytesRead = fileBasicInfo.decode(buffer, startIndex, 36);

        // Verify bytes read
        assertEquals(36, bytesRead);

        // Verify decoded values match original

        for (int i = 0; i < dst.length; i++) {
            dst[i] = (byte) (i & 0xFF);
        }

        int startIndex = 5;
        int bytesWritten = querySecurityDesc.writeParametersWireFormat(dst, startIndex);

        // Check that bytes before startIndex are unchanged
        for (int i = 0; i < startIndex; i++) {
            assertEquals((byte) (i & 0xFF), dst[i]);
        }

        for (int i = 0; i < dst.length; i++) {
            dst[i] = (byte) (i & 0xFF);
        }

        int startIndex = 5;
        int bytesWritten = notifyChange.writeSetupWireFormat(dst, startIndex);

        // Check that bytes before startIndex are unchanged
        for (int i = 0; i < startIndex; i++) {
            assertEquals((byte) (i & 0xFF), dst[i]);
        }

            byte[] buffer = new byte[100];
            int startIndex = 10;

            int bytesWritten = echoRequest.writeBytesWireFormat(buffer, startIndex);

            // Should write 4 bytes
            assertEquals(4, bytesWritten);

            // Should write structure size of 4
            assertEquals(4, SMBUtil.readInt2(buffer, startIndex));
        }

        @Test

        int startIndex = 10;

        // Prepare buffer with offset
        byte[] fullBuffer = new byte[buffer.length + startIndex];
        System.arraycopy(buffer, 0, fullBuffer, startIndex, buffer.length);

        setErrorCode(response, 0);

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

        NdrShort ns = new NdrShort(0xABCD); // value & 0xFF => 0xCD
        buf.reset();
        int startIndex = buf.getIndex();
        ns.encode(buf);

        // Find where the actual data starts (after alignment)
        int alignmentBytes = 0;
        if (startIndex % 2 != 0) {
            alignmentBytes = 1; // Need 1 byte of padding for 2-byte alignment
        }

            Arrays.fill(buffer, (byte) 0);

            int startIndex = 100;
            request.writeBytesWireFormat(buffer, startIndex);

            // Verify data is at correct position
            for (int i = 0; i < data.length; i++) {
                assertEquals((byte) 0xAB, buffer[startIndex + 48 + i]);
            }
        }

        @Test