/** Character used to separate cache key components */
    protected static final char CACHE_KEY_SPLITTER = '\n';

    /** Cache for storing popular word lists */
    protected Cache<String, List<String>> cache;

    /** Fess configuration instance */
    protected FessConfig fessConfig;

    /**
     * Default constructor.
     */

     * Represents EOF (End of File).
     */
    public static final int TT_EOF = -1;

    /**
     * Represents a Quote.
     */
    public static final int TT_QUOTE = '\'';

    /**
     * Represents a word.
     */
    public static final int TT_WORD = -3;

    private static final int TT_NOTHING = -4;

    private static final int NEED_CHAR = Integer.MAX_VALUE;

    private static final int QUOTE = '\'';

  private val bytesIn = Buffer()
  private val hpackReader = Hpack.Reader(bytesIn, 4096)

  protected fun testDecoder(story: Story) {
    for (testCase in story.cases) {
      val encoded = testCase.wire ?: continue
      bytesIn.write(encoded)
      hpackReader.readHeaders()
      assertSetEquals(
        "seqno=$testCase.seqno",
        testCase.headersList,
        hpackReader.getAndResetHeaderList(),
      )

        }

        public void deleteElevateWord(String word, boolean apply) {
            // Mock implementation
        }

        public void addElevateWord(org.codelibs.fess.suggest.entity.ElevateWord elevateWord, boolean apply) {
            // Mock implementation
        }

        public void addBadWord(String word, boolean apply) {
            // Mock implementation
        }

     */
    public PopularWordsRequestBuilder setWindowSize(final int windowSize) {
        request.setWindowSize(windowSize);
        return this;
    }

    /**
     * Adds an exclude word.
     * @param excludeWord The word to exclude.
     * @return This builder instance.
     */
    public PopularWordsRequestBuilder addExcludeWord(final String excludeWord) {
        request.addExcludeWord(excludeWord);

        final int start = bufferIndex;
        if (in.read(buffer, bufferIndex, this.length) != this.length) {
            throw new IOException("invalid session request wire format");
        }
        bufferIndex += this.calledName.readWireFormat(buffer, bufferIndex);
        bufferIndex += this.callingName.readWireFormat(buffer, bufferIndex);
        return bufferIndex - start;
    }

errors.failed_to_upload_stopwords_file = Не удалось загрузить файл стоп-слов.
errors.failed_to_download_elevate_file = Не удалось скачать файл elevate word.
errors.failed_to_upload_elevate_file = Не удалось загрузить файл elevate word.
errors.failed_to_download_badword_file = Не удалось скачать файл плохих слов.
errors.failed_to_upload_badword_file = Не удалось загрузить файл плохих слов.

            String result = testBlock.readString(buffer, 0);

            assertEquals("Test", result);
        }

        @Test
        @DisplayName("Test string wire length calculation")
        void testStringWireLength() {
            testBlock.setUseUnicode(false);
            assertEquals(5, testBlock.stringWireLength("Test", 0));

            testBlock.setUseUnicode(true);

        final int start = bufferIndex;
        if (in.read(buffer, bufferIndex, length) != length) {
            throw new IOException("invalid session request wire format");
        }
        bufferIndex += calledName.readWireFormat(buffer, bufferIndex);
        bufferIndex += callingName.readWireFormat(buffer, bufferIndex);
        return bufferIndex - start;
    }

        // Assert
        assertNotNull(resp, "Instance should not be null");
    }

    /**
     * All wire‑format methods should return zero regardless of inputs.
     */
    @Nested
    @DisplayName("Wire format method behaviour")
    class WireFormatMethods {
        @ParameterizedTest
        @ValueSource(ints = { 0, 1, -1, Integer.MAX_VALUE, Integer.MIN_VALUE })