SMBUtil.writeInt2(0, buffer, SmbConstants.SMB1_HEADER_LENGTH + 1);

            assertThrows(SMBProtocolDecodingException.class, () -> {
                testBlock.decode(buffer, 0);
            });
        }

        @Test
        @DisplayName("Test decode with retain payload")
        void testDecodeWithRetainPayload() throws SMBProtocolDecodingException {
            testBlock.retainPayload();

        int bytesEncoded = originalInfo.encode(buffer, 0);

        // When - Decode
        FileBasicInfo decodedInfo = new FileBasicInfo();
        int bytesDecoded = decodedInfo.decode(buffer, 0, bytesEncoded);

        // Then
        assertEquals(40, bytesEncoded);
        assertEquals(36, bytesDecoded); // decode returns 36, encode returns 40

        assertNull(response.getInfo());
    }

    @Test
    void testReadDataWireFormat_EmptyBuffer() throws Exception {
        // Test with empty dataCount but decode still processes buffer
        // Note: SmbInfoAllocation.decode() doesn't check len parameter, always reads 20 bytes
        response = new Trans2QueryFSInformationResponse(config, FileSystemInformation.SMB_INFO_ALLOCATION);

    @Test
    @DisplayName("Should define decode method")
    void testDecodeMethod() throws SMBProtocolDecodingException {
        // Given
        byte[] buffer = new byte[10];
        int bufferIndex = 0;
        int len = 10;
        when(mockDecodable.decode(buffer, bufferIndex, len)).thenReturn(10);

        // When
        int decodedLength = mockDecodable.decode(buffer, bufferIndex, len);

        // Then

    public void setInterfaces(List<NetworkInterfaceInfo> interfaces) {
        this.interfaces = interfaces;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.Decodable#decode(byte[], int, int)
     */
    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) {
        int start = bufferIndex;
        int end = start + len;
        interfaces.clear();

   * @param encoded The serialized trie.
   * @param start An index in the encoded serialized trie to begin reading characters from.
   * @param builder A map builder to which all entries will be added.
   * @return The number of characters consumed from {@code encoded}.
   */
  private static int doParseTrieToBuilder(
      Deque<CharSequence> stack,
      CharSequence encoded,
      int start,

        m.ptype = 0; // Request type
        NdrBuffer buf = new NdrBuffer(new byte[1024], 0);
        m.encode(buf);

        buf.setIndex(0);
        // Decode will throw exception as ptype 0 is not a valid response type
        assertThrows(NdrException.class, () -> m.decode(buf));
    }

    @Test
    void testRoundTripEncodeDecodeForResponseType() throws Exception {
        // Create a properly formatted response message

                    .thenReturn(0); // cancel count

            message.decode(mockBuffer);

            assertEquals(DcerpcConstants.RPC_PT_RESPONSE, message.ptype);
            assertEquals(100, message.alloc_hint);
        }

        @Test
        @DisplayName("decode should handle FAULT ptype correctly")
        void testDecodeFaultPtype() throws NdrException {

      return "[" + toAddrString(ip) + "]";
    }
    return toAddrString(ip);
  }

  /**
   * Returns an InetAddress representing the literal IPv4 or IPv6 host portion of a URL, encoded in
   * the format specified by RFC 3986 section 3.2.2.
   *
   * <p>This method is similar to {@link InetAddresses#forString(String)}, however, it requires that
   * IPv6 addresses are surrounded by square brackets.

        }

        @Test
        @DisplayName("Should decode sync message correctly")
        void testDecodeSync() throws SMBProtocolDecodingException {
            byte[] buffer = createValidSyncMessage();
            testMessage.setBytesRead(10);

            int len = testMessage.decode(buffer, 0);

            assertTrue(len > 0);
            assertFalse(testMessage.isAsync());