}
        dir.delete();
    }

    // Test initialization
    @Test
    public void test_init() {
        assertNotNull(thumbnailManager.baseDir);
        assertTrue(thumbnailManager.baseDir.exists());
        assertTrue(thumbnailManager.baseDir.isDirectory());
        assertNotNull(thumbnailManager.thumbnailTaskQueue);
    }

    // Test initialization with system property
    @Test

	obj, err := newObjectLayer(ctx, mustGetPoolEndpoints(0, disks...))
	if err != nil {
		t.Fatal("Unexpected object layer initialization error", err)
	}

	_, ok := obj.(*erasureServerPools)
	if !ok {
		t.Fatal("Unexpected object layer detected", reflect.TypeOf(obj))
	}

	// Tests for Erasure object layer initialization.

	// Create temporary backend for the test server.
	nDisks = 16
	disks, err = getRandomDisks(nDisks)

		namer:            namer,
		initialized:      make(chan struct{}),
	}
	// When the schema initialization is completed, the channel will be closed
	defer close(schema.initialized)

	// Load exist schema cache, return if exists
	if v, ok := cacheStore.Load(schemaCacheKey); ok {
		s := v.(*Schema)
		// Wait for the initialization of other goroutines to complete
		<-s.initialized
		return s, s.err
	}

            assertNotNull(client);
        }
    }

    // Test instance fields initialization
    @Test
    public void test_instanceFieldsInitialization() {
        // Test that instance fields are properly initialized
        assertNotNull(crawlerEngineClient);
        // The actual client initialization happens lazily when needed
    }

    // Test that close method exists (inherited)
    @Test

     * Initialize singleton context using custom properties
     *
     * This method can only be called once.
     *
     * @param props the properties to use for initialization
     * @throws CIFSException if the singleton context is already initialized or there is an error during initialization
     */
    public static synchronized final void init(final Properties props) throws CIFSException {
        if (INSTANCE != null) {

	//   connPool: A connection pool that provides database connections.
	//   locker: A synchronization lock that is unlocked after initialization to avoid deadlocks.
	// Returns:
	//   *Stmt: A newly created statement object for executing SQL operations.
	//   error: An error if the statement preparation fails.

    void testInitWithNullProperties() throws CIFSException {
        // Test successful initialization with null properties
        assertDoesNotThrow(() -> SingletonContext.init(null));
        assertNotNull(SingletonContext.getInstance());
    }

    @Test
    void testInitWithCustomProperties() throws CIFSException {
        // Test successful initialization with custom properties
        Properties props = new Properties();

     * Each thread handles crawling for a single data configuration,
     * processing documents and updating the search index.
     *
     * <p>The thread manages:</p>
     * <ul>
     *   <li>Data store initialization and document processing</li>
     *   <li>Index update operations through callbacks</li>
     *   <li>Error handling and failure logging</li>
     *   <li>Cleanup of old documents after successful crawling</li>

   * time for AbstractFutureState to potentially use them during class initialization.
   * (AbstractFutureState class initialization can log, and that logging could in theory call into
   * AbstractFuture, which wouldn't yet have had the chance to perform any class initialization of
   * its own.)
   */

  /** A special value to represent {@code null}. */

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        when(mockConfig.getTransactionBufferSize()).thenReturn(65535);
    }

    @Test
    @DisplayName("Test constructor initialization with basic parameters")
    void testConstructorBasic() {
        int fid = 0x1234;
        int securityInfo = OWNER_SECURITY_INFORMATION;