int offset = 128;
            Smb2ReadRequest requestWithBuffer = new Smb2ReadRequest(mockConfig, testFileId, specificBuffer, offset);

            Smb2ReadResponse response = requestWithBuffer.createResponse(mockContext, requestWithBuffer);
            assertNotNull(response);
            // Response should be created with same buffer and offset
        }
    }

    @Nested

        @DisplayName("Should handle various buffer offsets")
        void testVariousBufferOffsets(int offset) {
            byte[] largeBuffer = new byte[512];
            int result = testRequest.encode(largeBuffer, offset);

            assertTrue(result > 0);
            // Verify header at correct offset
            for (int i = offset; i < offset + 8; i++) {
                assertEquals((byte) 0xFF, largeBuffer[i]);

        int bytesWritten = packet.writeTrailerWireFormat(dst, offset);

        assertTrue(bytesWritten > 0);
        // Check that bytes before offset are unchanged
        for (int i = 0; i < offset; i++) {
            assertEquals((byte) 0xFF, dst[i]);
        }
        // Check that bytes after offset are written
        assertNotEquals((byte) 0xFF, dst[offset]);
    }

    @Test

		rsc.offset = rsc.size + offset
	}
	if rsc.offset < 0 {
		return rsc.offset, errors.New("seek to invalid negative offset")
	}
	if rsc.offset >= rsc.size {
		return rsc.offset, errors.New("seek past end of object")
	}
	if rsc.reader != nil {
		_ = rsc.reader.Close()
		rsc.reader = nil
	}
	return rsc.offset, nil
}

// Read call to implement io.Reader

        @DisplayName("Should handle buffer with offset correctly")
        void testReadWithBufferOffset() throws Exception {
            int offset = 10;
            byte[] buffer = new byte[64];
            byte[] fileId = createTestData(16);
            byte oplockLevel = 0x02;

            // Fill some random data before offset
            Arrays.fill(buffer, 0, offset, (byte) 0xAB);

        byte[] dst = new byte[100];

        int bytesWritten = notifyChange.writeSetupWireFormat(dst, 10);

        // Verify structure:
        // Offset 0-3: Completion Filter (4 bytes)
        // Offset 4-5: FID (2 bytes)
        // Offset 6: Watch Tree (1 byte)
        // Offset 7: Reserved (1 byte)
        assertEquals(8, bytesWritten);

        // Check completion filter

        // No group (offset 0)
        for (int i = 8; i < 12; i++)
            securityDescriptorBytes[i] = 0;
        // No SACL (offset 0)
        for (int i = 12; i < 16; i++)
            securityDescriptorBytes[i] = 0;
        // DACL at offset 20
        securityDescriptorBytes[16] = 20;
        securityDescriptorBytes[17] = 0;
        securityDescriptorBytes[18] = 0;
        securityDescriptorBytes[19] = 0;

        buffer[40] = 0x00;

        // Parameter offset (2 bytes)
        buffer[41] = 0x00;
        buffer[42] = 0x00;

        // Parameter displacement (2 bytes)
        buffer[43] = 0x00;
        buffer[44] = 0x00;

        // Data count (2 bytes)
        buffer[45] = 0x00;
        buffer[46] = 0x00;

        // Data offset (2 bytes)
        buffer[47] = 0x00;
        buffer[48] = 0x00;

        assertEquals(32, bytesWritten);

        // Verify filename offset and length are 0
        int fnOffset = buffer[Smb2Constants.SMB2_HEADER_LENGTH + 24] | (buffer[Smb2Constants.SMB2_HEADER_LENGTH + 25] << 8);
        int fnLength = buffer[Smb2Constants.SMB2_HEADER_LENGTH + 26] | (buffer[Smb2Constants.SMB2_HEADER_LENGTH + 27] << 8);

        assertEquals(0, fnOffset);
        assertEquals(0, fnLength);
    }

    @Test

        int offset = 64; // Start at offset to test proper indexing

        int written = request.writeBytesWireFormat(buffer, offset);

        // Verify bytes written
        assertEquals(24, written);

        // Verify structure size (should be 24)
        assertEquals(24, SMBUtil.readInt2(buffer, offset));

        // Verify Reserved1 (2 bytes at offset+2, should be 0)