final int length = src != null ? src.length : 0;
        if (length == 0) {
            return;
        }
        writeUShort(dest, offset, length);
        writeUShort(dest, offset + 2, length);
        writeULong(dest, offset + 4, bodyOffset);
        System.arraycopy(src, 0, dest, bodyOffset, length);
    }

    static String getOEMEncoding() {

        if (domainLength > 0) {
            writeUShort(targetInfo, offset, 2);
            offset += 2;
            writeUShort(targetInfo, offset, domainLength);
            offset += 2;
            System.arraycopy(domain, 0, targetInfo, offset, domainLength);
            offset += domainLength;
        }
        if (serverLength > 0) {
            writeUShort(targetInfo, offset, 1);
            offset += 2;

    }

    @Test
    @DisplayName("writeUShort writes little endian bytes")
    void testWriteUShort() {
        byte[] dest = new byte[2];
        NtlmMessage.writeUShort(dest, 0, 0xBBAA);
        assertArrayEquals(new byte[] { (byte) 0xAA, (byte) 0xBB }, dest, "Writer must be little‑endian");
    }

    @Test
    @DisplayName("writeUShort handles negative values as unsigned")

        final int length = src != null ? src.length : 0;
        if (length == 0) {
            return offset + 4;
        }
        writeUShort(dest, offset, length);
        writeUShort(dest, offset + 2, length);
        return offset + 4;
    }

    static int writeSecurityBufferContent(final byte[] dest, final int pos, final int off, final byte[] src) {
        writeULong(dest, off, pos);

        if (domainLength > 0) {
            writeUShort(targetInfo, offset, 2);
            offset += 2;
            writeUShort(targetInfo, offset, domainLength);
            offset += 2;
            System.arraycopy(domain, 0, targetInfo, offset, domainLength);
            offset += domainLength;
        }
        if (serverLength > 0) {
            writeUShort(targetInfo, offset, 1);
            offset += 2;

    }

    @Test
    void testWriteUShort() {
        // Test writeUShort
        byte[] data = new byte[2];
        ByteBuffer expectedBuffer = ByteBuffer.allocate(2).order(ByteOrder.LITTLE_ENDIAN);

        // Test with a positive value
        int value = 0x1234;
        NtlmMessage.writeUShort(data, 0, value);
        expectedBuffer.putShort(0, (short) value);

            Type2Message.writeULong(truncatedMessage, 8, Type2Message.NTLMSSP_TYPE2);
            // Set empty target name buffer
            Type2Message.writeUShort(truncatedMessage, 12, 0); // length
            Type2Message.writeUShort(truncatedMessage, 14, 0); // max length
            Type2Message.writeULong(truncatedMessage, 16, 48); // offset (past the end)
            // Set flags

  ) {
    var payload = ByteString.EMPTY
    if (code != 0 || reason != null) {
      if (code != 0) {
        validateCloseCode(code)
      }
      payload =
        Buffer().run {
          writeShort(code)
          if (reason != null) {
            write(reason)
          }
          readByteString()
        }
    }

    try {
      writeControlFrame(OPCODE_CONTROL_CLOSE, payload)

    out.writeBoolean(true);
    out.writeBoolean(false);
    out.writeByte(100);
    out.writeByte(-100);
    out.writeByte((byte) 200);
    out.writeChar('a');
    out.writeShort((short) -30000);
    out.writeShort((short) 50000);
    out.writeInt(0xCAFEBABE);
    out.writeLong(0xDEADBEEFCAFEBABEL);
    out.writeUTF("Herby Derby");
    out.writeFloat(Float.intBitsToFloat(0xCAFEBABE));

    private static void writeLong(byte[] buf, int offset, long val) {
        for (int i = 0; i < 8; i++) {
            buf[offset + i] = (byte) ((val >>> (8 * i)) & 0xFF);
        }
    }

    private static void writeShort(byte[] buf, int offset, int val) {
        buf[offset] = (byte) (val & 0xFF);
        buf[offset + 1] = (byte) ((val >>> 8) & 0xFF);
    }

    @Test
    void testTrans2QueryPathBasicInfoParsing() throws Exception {