assertTrue(digest.called, "sign() should be called during encode");
        assertEquals(len, digest.lastLength);
    }

    @Test
    @DisplayName("writeAndXWireFormat without andx writes 0xFF and sentinel offset")
    void testWriteAndXWireFormatWithoutAndx() {
        DummyAndXBlock block = new DummyAndXBlock();
        byte[] buf = new byte[128];
        int n = block.writeAndXWireFormat(buf, 0);

    }

    /**
     * Writes setup data in wire format
     * @param dst destination buffer
     * @param dstIndex starting index in destination buffer
     * @return number of bytes written
     */
    protected abstract int writeSetupWireFormat(byte[] dst, int dstIndex);

    /**
     * Writes parameters in wire format
     * @param dst destination buffer

                writeFessConfig(zos, diagnosticId);
                writeFesenCat(zos, diagnosticId);
                writeFesenJson(zos, diagnosticId);
            }
        });
    }

    /**
     * Writes OpenSearch JSON API responses to the ZIP output stream.
     *
     * @param zos the ZIP output stream to write to
     * @param id the diagnostic ID for organizing files in the ZIP
     */

                }
                throw new DictionaryException("Failed to write a userDict file.", e);
            }
            item = newItem;
        }

        /**
         * Writes a character mapping item to the temporary file.
         *
         * @param oldItem the existing mapping item to process
         * @return the mapping item that was written, or null if the item was deleted
         */

     *
     * @return average write latency
     */
    public double getAverageWriteLatencyMicros() {
        long writes = rdmaWrites.get();
        if (writes == 0) {
            return 0.0;
        }
        return totalWriteTime.get() / (double) writes / 1000.0; // Convert to microseconds
    }

    /**
     * Calculate average send latency in microseconds
     *

        // 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)

        }
    }

    /**
     * Writes the specified byte to this file output stream.
     *
     * @throws IOException
     *             if a network error occurs
     */

    @Override
    public void write(final int b) throws IOException {
        this.tmp[0] = (byte) b;
        write(this.tmp, 0, 1);
    }

    /**
     * Writes b.length bytes from the specified byte array to this

        assertEquals(expectedAttributes, searchAttributesField.get(smbComRename));
    }

    /**
     * Test writeParameterWordsWireFormat method
     */
    @Test
    @DisplayName("Test writeParameterWordsWireFormat writes search attributes correctly")
    public void testWriteParameterWordsWireFormat() {
        // Given
        byte[] dst = new byte[10];
        smbComRename = new SmbComRename(config, "old.txt", "new.txt");

                throw new DictionaryException("Failed to write a userDict file.", e);
            }
            item = newItem;
        }

        /**
         * Writes a stopword item to the temporary file.
         * If the item is being updated, it writes the new version.
         *
         * @param oldItem The original item from the dictionary.
         * @return The written item, or null if the item was deleted.

                throw new DictionaryException("Failed to write a userDict file.", e);
            }
            item = newItem;
        }

        /**
         * Writes a stemmer override item to the temporary file.
         * If the item is being updated, it writes the new version.
         *
         * @param oldItem The original item from the dictionary.
         * @return The written item, or null if the item was deleted.