Mac mac = Mac.getInstance("HmacMD5");
        MessageDigest md = MessageDigest.getInstance("MD5");
        mac.init(key);
        byte[] dk = mac.doFinal(MD5_CONSTANT);
        try {
            // little endian
            md.update((byte) (ms_usage & 0xFF));
            md.update((byte) (ms_usage >> 8 & 0xFF));
            md.update((byte) (ms_usage >> 16 & 0xFF));
            md.update((byte) (ms_usage >> 24 & 0xFF));

	// OpMerged is several operations merged into one.
	OpMerged
)

const (
	// FlagCRCxxh3 indicates that, the lower 32 bits of xxhash3 of the serialized
	// message will be sent after the serialized message as little endian.
	FlagCRCxxh3 Flags = 1 << iota

	// FlagEOF the stream (either direction) is at EOF.
	FlagEOF

	// FlagStateless indicates the message is stateless.
	// This will retain clients across reconnections or

        // Assert
        assertEquals(4, bytesWritten);
        assertEquals(SmbComTransaction.TRANS_TRANSACT_NAMED_PIPE, dst[0]);
        assertEquals(0x00, dst[1]);

        // Verify FID is written correctly (little-endian)
        int writtenFid = SMBUtil.readInt2(dst, 2);
        assertEquals(TEST_FID, writtenFid);
    }

    @Test
    @DisplayName("Test writeDataWireFormat with sufficient buffer")

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

        // Then
        assertEquals(4, bytesWritten, "Should write 4 bytes");
        // Check that structure size (4) is written as 2-byte little-endian
        assertEquals(4, buffer[offset] | (buffer[offset + 1] << 8), "Structure size should be 4");
        assertEquals(0, buffer[offset + 2], "Reserved bytes should be 0");

/*

- test projects for each of these
- how to categorize the problems so that the id of the problem can be match to a page with descriptive help and the test
  project
- nice little sample projects that could be run in the core as well as integration tests

All Possible Errors
- invalid lifecycle phase (maybe same as bad CLI param, though you were talking about embedder too)
- <module> specified is not found

        assertEquals((byte) 'S', SMBUtil.SMB2_HEADER[1]);
        assertEquals((byte) 'M', SMBUtil.SMB2_HEADER[2]);
        assertEquals((byte) 'B', SMBUtil.SMB2_HEADER[3]);

        // Verify structure size (64 in little-endian)
        assertEquals((byte) 64, SMBUtil.SMB2_HEADER[4]);
        assertEquals((byte) 0x00, SMBUtil.SMB2_HEADER[5]);
    }

    @ParameterizedTest

        assertEquals(4, bytesWritten);
        assertEquals(SmbComTransaction.TRANS_PEEK_NAMED_PIPE, buffer[offset]);
        assertEquals((byte) 0x00, buffer[offset + 1]);

        // Verify FID is written correctly (little-endian)
        int writtenFid = SMBUtil.readInt2(buffer, offset + 2);
        assertEquals(TEST_FID, writtenFid);
    }

    @Test
    @DisplayName("writeSetupWireFormat should handle buffer boundary")

    private static byte[] buildHeader(int status) {
        byte[] hdr = new byte[64]; // SMB2 header is 64 bytes
        System.arraycopy(SMBUtil.SMB2_HEADER, 0, hdr, 0, 64);
        // Write Status (little-endian) at offset 8 in the SMB2 header
        SMBUtil.writeInt4(status, hdr, 8);
        // Write Command = SMB2_IOCTL (0x000B) at offset 12
        SMBUtil.writeInt2(0x000B, hdr, 12);

        writeLittleEndianInt(dos, 0); // unusedChars
        writeLittleEndianInt(dos, totalChars); // usedChars

        // Write the actual characters (as shorts in little-endian)
        for (char c : testString.toCharArray()) {
            writeLittleEndianShort(dos, (short) c);
        }

        ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());

        DummyResponse d = new DummyResponse();
        // Construct a minimal wire format buffer
        byte[] buf = new byte[32];
        int idx = 0;
        // Write values little-endian
        buf[idx++] = 5; // totalParameterCount low byte
        buf[idx++] = 0; // totalParameterCount high byte -> value 5
        buf[idx++] = 3; // totalDataCount low
        buf[idx++] = 0; // totalDataCount high