private static final Logger logger = LogManager.getLogger(MsExcelExtractorTest.class);

    public MsExcelExtractor msExcelExtractor;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("msExcelExtractor", MsExcelExtractor.class);

    private static final Logger logger = LogManager.getLogger(MsPowerPointExtractorTest.class);

    public MsPowerPointExtractor msPowerPointExtractor;

    @Override
    protected void setUp() throws Exception {
        super.setUp();
        StandardCrawlerContainer container = new StandardCrawlerContainer().singleton("msPowerPointExtractor", MsPowerPointExtractor.class);

    resetMap(createArrayWithNullValue());
  }

  /**
   * Equivalent to {@link #expectMissingKeys(Object[]) expectMissingKeys} {@code (null)} except that
   * the call to {@code contains(null)} is permitted to throw a {@code NullPointerException}.
   *
   * @param message message to use upon assertion failure
   */
  protected void expectNullKeyMissingWhenNullKeysUnsupported(String message) {
    try {

     */
    protected abstract Pattern getTagPattern();

    @Override
    public ExtractData getText(final InputStream in, final Map<String, String> params) {
        if (in == null) {
            throw new CrawlerSystemException("The inputstream is null.");
        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);
            final String enc = getEncoding(bis);

 */
public abstract class QueryTestBase extends UnitFessTestCase {

    protected QueryProcessor queryProcessor;

    @Override
    public void setUp() throws Exception {
        super.setUp();

        // Setup FessConfig with proper initialization
        setupBaseFessConfig();

        // Initialize QueryFieldConfig

    }

    /** {@inheritDoc} */
    @Override
    public ArtifactVersion getSelectedVersion() throws OverConstrainedVersionException {
        return artifact.getSelectedVersion();
    }

    /** {@inheritDoc} */
    @Override
    public boolean isSelectedVersionKnown() throws OverConstrainedVersionException {
        return artifact.isSelectedVersionKnown();
    }

    /** {@inheritDoc} */

            if (values.length > 2) {
                throw new InvalidQueryException(messages -> messages.addErrorsInvalidQuerySortValue(UserMessages.GLOBAL_PROPERTY_KEY, text),
                        "Invalid sort field: " + termQuery);
            }
            final String sortField = values[0];
            if (!getQueryFieldConfig().isSortField(sortField)) {
                throw new InvalidQueryException(

                            len += 2;
                            if (len > 256) {
                                throw new RuntimeException("zero termination not found");
                            }
                        }
                        server.oemDomainName = new String(buffer, bufferIndex, len, UNI_ENCODING);

    }

    // --- Invalid/null usage: calling a method on null should throw NPE ---
    @Test
    void nullReference_throwsNullPointerException() {
        // Arrange
        SmbBasicFileInfo info = null;

        // Act & Assert: attempting to call any method on null should throw NPE
        Assertions.assertThrows(NullPointerException.class, () -> {

                    if (k.isInstance(x)) {
                      return k.cast(x);
                    }
                  }
                  throw new NoSuchFieldError("the Unsafe");
                });
      } catch (PrivilegedActionException e) {
        throw new RuntimeException("Could not initialize intrinsics", e.getCause());
      }
    }

    static {
      theUnsafe = getUnsafe();