writeInt4(0, buffer, bufferIndex);
        bufferIndex += 4;
        // dataCount = 15
        writeInt4(15, buffer, bufferIndex);
        bufferIndex += 4;
        // dataOffset = 40
        writeInt4(40, buffer, bufferIndex);
        bufferIndex += 4;
        // dataDisplacement = 0
        writeInt4(0, buffer, bufferIndex);
        bufferIndex += 4;
        // setupCount = 0 (1 byte + 1 padding byte)

            Encdec.enc_uint16le((short) 40, inB, 8);

            when(mockSmbPipeHandleInternal.isStale()).thenReturn(false);
            when(mockSmbPipeHandleInternal.sendrecv(buf, 0, 50, inB, 4280)).thenReturn(40);

            int result = handle.doSendReceiveFragment(buf, 0, 50, inB);
            assertEquals(40, result);
            verify(mockSmbPipeHandleInternal).sendrecv(buf, 0, 50, inB, 4280);

        byte[] dst = new byte[42];

        // When
        int result = trans2SetFileInformation.writeDataWireFormat(dst, 0);

        // Then
        assertEquals(40, result); // Returns 40 bytes written
    }

    @Test
    void testReadSetupWireFormat() {
        // When
        int result = trans2SetFileInformation.readSetupWireFormat(new byte[0], 0, 0);

        // Then

        System.arraycopy("Inter-Process Communication".getBytes(StandardCharsets.US_ASCII), 0, data, 60, 27);

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

        assertEquals(40, bytesRead, "Should read 40 bytes for the two entries.");
        assertNotNull(response.results, "Results should not be null.");
        assertEquals(2, response.results.length, "Should have 2 share entries.");

        // Decode to new instance (decode reads 36 bytes, encode writes 40)
        FileBasicInfo decoded = new FileBasicInfo();
        int decodedBytes = decoded.decode(buffer, 0, 36);

        // Verify encoding/decoding
        assertEquals(40, encodedBytes); // encode writes 40 bytes (includes padding)
        assertEquals(36, decodedBytes); // decode reads 36 bytes (no padding)

        byte[] buffer = new byte[64];
        int dstIndex = 8;

        // When
        int bytesEncoded = info.encode(buffer, dstIndex);

        // Then
        assertEquals(40, bytesEncoded); // Should encode 40 bytes
        // Use SMBUtil to read times back properly
        assertEquals(TEST_CREATE_TIME, SMBUtil.readTime(buffer, dstIndex));

            return;
        }
        for (int i = 32; i < 40; i++) {
            if (material[i] != 0) {
                final byte[] context = new byte[8];
                System.arraycopy(material, 32, context, 0, 8);
                setContext(context);
                break;
            }
        }
        if (offset == 40 || material.length == 40) {
            return;
        }

        // Prepare test data
        byte[] buffer = createValidBuffer("file.txt", "FILE~1.TXT", true);
        long expectedEndOfFile = 1024L * 1024L; // 1MB
        SMBUtil.writeInt8(expectedEndOfFile, buffer, 40);

        // Decode
        fileBothDirectoryInfo.decode(buffer, 0, buffer.length);

        // Verify
        assertEquals(expectedEndOfFile, fileBothDirectoryInfo.length());
    }

    @Test

        request = new Smb2QueryInfoRequest(mockConfig);

        int size = request.size();

        // Expected size calculation: size8(SMB2_HEADER_LENGTH + 40)
        // size8 rounds up to nearest multiple of 8
        int expectedRawSize = Smb2Constants.SMB2_HEADER_LENGTH + 40;
        int expectedSize = (expectedRawSize + 7) & ~7; // Round up to nearest 8
        assertEquals(expectedSize, size);
    }

    @Test

    // Add boundary values manually to avoid over/under flow (this covers 2^N for 0 and 31).
    intValues.add(Integer.MAX_VALUE - 1, Integer.MAX_VALUE);
    // Add values up to 40. This covers cases like "square of a prime" and such.
    for (int i = 1; i <= 40; i++) {
      intValues.add(i);
    }
    // Now add values near 2^N for lots of values of N.
    for (int exponent : asList(2, 3, 4, 9, 15, 16, 17, 24, 25, 30)) {