// Test SearchEngineClient field injection
        ThumbnailGenerator generator = new ThumbnailGenerator();
        assertNull(generator.searchEngineClient);

        // After proper initialization, it should be injected
        SearchEngineClient mockClient = new SearchEngineClient() {
            // Mock implementation
        };
        generator.searchEngineClient = mockClient;

    }
  }

  AggregateFutureState(int remainingFutures) {
    this.remainingField = remainingFutures;
  }

  final Set<Throwable> getOrInitSeenExceptions() {
    /*
     * The initialization of seenExceptionsField has to be more complicated than we'd like. The
     * simple approach would be for each caller CAS it from null to a Set populated with its

     * @param filter additional resource name filter to apply
     * @param searchAttributes the file attributes to search for
     * @throws CIFSException if an error occurs during initialization
     */
    public DirFileEntryEnumIteratorBase(final SmbTreeHandleImpl th, final SmbResource parent, final String wildcard,
            final ResourceNameFilter filter, final int searchAttributes) throws CIFSException {

            String customResult = mimeMap.getMimeType("", "custom/default");
            assertNotNull(customResult);
        }
    }

    @Nested
    @DisplayName("Constructor and initialization")
    class ConstructorTests {

        @Test
        @DisplayName("Should create MimeMap instance successfully")
        void testConstructor() {
            assertDoesNotThrow(() -> new MimeMap());

   * up the necessary in-memory cache information.
   *
   * The initialization time may vary depending on the journal file size and the current actual
   * cache size. The application needs to be aware of calling this function during the
   * initialization phase and preferably in a background worker thread.
   *

public class QueryCommandTest extends UnitFessTestCase {
    private QueryCommand queryCommand;

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

        // Setup FessConfig with proper initialization
        FessConfig.SimpleImpl fessConfig = new FessConfig.SimpleImpl() {
            private static final long serialVersionUID = 1L;

            {

        // Test complete lifecycle
        assertFalse(channelManager.isUseMultiChannel());

        try {
            channelManager.initializeMultiChannel();
            // Should not throw exception even if initialization fails
        } catch (Exception e) {
            // Expected in test environment without proper server setup
        }

        assertDoesNotThrow(() -> channelManager.shutdown());
    }

    @Test

 * </ul>
 *
 * <p>
 * The MIME type detection is based on the {@code tika-mimetypes.xml} resource, which is loaded during initialization.
 * </p>
 *
 * <p>
 * Usage:
 * </p>
 * <pre>
 * MimeTypeHelperImpl mimeTypeHelper = new MimeTypeHelperImpl();
 * String contentType = mimeTypeHelper.getContentType(inputStream, filename);
 * </pre>

        NtlmPasswordAuthentication auth = new NtlmPasswordAuthentication("DOMAIN", "user", "password");
        byte[] challenge = { 1, 2, 3, 4, 5, 6, 7, 8 };

        // Behavior is determined by static initialization, not runtime config
        byte[] unicodeHash = auth.getUnicodeHash(challenge);
        byte[] ansiHash = auth.getAnsiHash(challenge);

        // Unicode hash returns empty array due to static LM_COMPATIBILITY=3

                .actionGet();

        client.admin().indices().prepareRefresh(SUGGEST_INDEX).execute().actionGet();
    }

    @Test
    public void testConstructor() {
        // Test constructor initialization
        AnalyzerConverter testConverter = new AnalyzerConverter(client, settings);
        assertNotNull(testConverter);
    }

    @Test
    public void testInit() throws IOException {