/** 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 = '\'';

     */
    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);

    /** The key of the message: Suggest Word */
    public static final String LABELS_menu_suggest_word = "{labels.menu_suggest_word}";

    /** The key of the message: Elevate Word */
    public static final String LABELS_menu_elevate_word = "{labels.menu_elevate_word}";

    /** The key of the message: Bad Word */
    public static final String LABELS_menu_bad_word = "{labels.menu_bad_word}";

> AI assistant guidance for the Fess Suggest project - a Java library providing intelligent search suggestions built on OpenSearch.

## Project Overview

**Fess Suggest** delivers auto-completion, search suggestions, and popular word analytics with multi-language support.

**Technology Stack:**
- Java 21+, Maven
- OpenSearch (provided dependency)
- Apache Lucene (query parsing, text analysis)
- ICU4J (Unicode text processing)
- JUnit 4 (testing)

        // 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 })

        request.setPrefixMatchWeight(prefixMatchWeight);
        return this;
    }

    /**
     * Sets whether to match the first word.
     * @param matchWordFirst True to match the first word, false otherwise.
     * @return This builder instance.
     */
    public SuggestRequestBuilder setMatchWordFirst(final boolean matchWordFirst) {

 * Unit test for {@link Trans2QueryFSInformation}. The class contains mostly
 * trivial wire-format helpers and a custom {@code toString()} implementation.
 * All tests are pure unit tests – no network or file system access is
 * required.
 */
class Trans2QueryFSInformationTest {

    /** Small helper to create a byte buffer larger than the maximum expected
     *  wire format so that we can observe only the bytes written by a method.
     */

 *
 * The class under test contains a number of straightforward data‑layout
 * methods (writing parameters and handling empty wire formats) and an
 * informative {@link NtTransQuerySecurityDesc#toString()}. The tests
 * exercise normal behaviour, boundary values, and the interaction with
 * the underlying wire‑format helpers.
 */
@ExtendWith(MockitoExtension.class)
class NtTransQuerySecurityDescTest {

    /**

      "Test stories missing, checkout git submodule",
    )

    val newCases = mutableListOf<Case>()
    for (case in story.cases) {
      hpackWriter.writeHeaders(case.headersList)
      newCases += case.copy(wire = bytesOut.readByteString())
    }

    testDecoder(story.copy(cases = newCases))
  }

  companion object {
    private val RAW_DATA = arrayOf("raw-data")
  }