// Create test input stream
        String content = "updated1\n" + "updated2\n";
        InputStream is = new ByteArrayInputStream(content.getBytes(StandardCharsets.UTF_8));

        // Update from input stream
        protwordsFile.update(is);

        // Verify update
        PagingList<ProtwordsItem> list = protwordsFile.selectList(0, 100);
        assertEquals(2, list.size());

        assertNull(result);

        updater.close();
    }

    public void test_updater_writeLine() {
        StopwordsFile.StopwordsUpdater updater = stopwordsFile.new StopwordsUpdater(null);

        // Test writing a comment line
        updater.write("# This is a comment");

        updater.close();
    }

    // Test edge cases
    public void test_emptyFile() {

    }

    /**
     * Updates the score of documents.
     * @param params The parameters for the update.
     * @return The number of updated documents.
     */
    protected long updateScore(final Map<String, Object> params) {
        return requestHandler.apply(params);
    }

    /**
     * Creates an update request builder.
     * @return The update request builder.
     */

        return asJson(new ApiResult.ApiUpdateResponse().id(entity.getId()).created(true).status(ApiResult.Status.OK).result());
    }

    /**
     * Updates an existing user setting.
     *
     * @param body the user data to update
     * @return JSON response containing the updated user setting ID
     */
    // PUT /api/admin/user/setting
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {

        return asJson(new ApiUpdateResponse().id(relatedQuery.getId()).created(true).status(Status.OK).result());
    }

    /**
     * Updates an existing related query setting.
     *
     * @param body the related query configuration data to update
     * @return JSON response containing the updated related query ID and status
     */
    // PUT /api/admin/relatedquery/setting
    @Execute

    }

    /**
     * Updates an existing Kuromoji dictionary item.
     *
     * @param dictId the dictionary ID
     * @param body the request body containing updated Kuromoji item information
     * @return JSON response with result status
     */
    // PUT /api/admin/dict/kuromoji/setting/{dictId}
    @Execute

        // Configure field and index names with special characters
        expiresFieldName = "expires-field.with@special#chars";
        documentUpdateIndex = "fess.update-index$special%chars";

        // Re-register FessConfig with updated values
        fessConfig = new TestFessConfig() {
            @Override
            public String getIndexFieldExpires() {
                return expiresFieldName;
            }

            }
        }
        return target;
    }

    /**
     * Updates a document with additional metadata and enhancements.
     * Adds click counts, favorite counts, document boosting, and generates document ID.
     * Also applies language-specific updates through the language helper.
     *
     * @param map the document data map to update with additional metadata
     */

  private @Nullable ByteBuffer scratch;

  /** Updates this hasher with the given byte. */
  protected abstract void update(byte b);

  /** Updates this hasher with the given bytes. */
  protected void update(byte[] b) {
    update(b, 0, b.length);
  }

  /** Updates this hasher with {@code len} bytes starting at {@code off} in the given buffer. */
  protected void update(byte[] b, int off, int len) {

    }

    // PUT /api/admin/duplicatehost/setting
    /**
     * Updates an existing duplicate host setting.
     *
     * @param body duplicate host setting data to update
     * @return JSON response with updated setting ID and status
     */
    @Execute
    public JsonResponse<ApiResult> put$setting(final EditBody body) {