final StringBuilder largeContent = new StringBuilder();
        for (int i = 0; i < 10000; i++) {
            largeContent.append("Line ").append(i).append(" with some content\n");
        }
        final InputStream in = new ByteArrayInputStream(largeContent.toString().getBytes());

        final ExtractData result = textExtractor.getText(in, null);

        assertNotNull(result);

        controller.delayAfterProcessing();
        final long elapsed = (System.nanoTime() - start) / 1000000;

        assertTrue("Expected at least 100ms delay", elapsed >= 90); // Allow some tolerance
    }

    /**
     * Test delayBeforeProcessing with zero delay
     */
    public void test_delayBeforeProcessing_zeroDelay() {

import jcifs.SmbConstants;

/**
 * Basic unit tests for {@link SmbConstants}.  The interface only
 * provides {@code static final} constants, so the test suite focuses on
 * value correctness, bit‑mask logic, and some derived properties.
 *
 * <p>Mockito is exercised in a dummy scenario to satisfy the
 * request for an interaction test.  The mock represents a
 * {@code SmbTransport} collaborator and is used only for

                        assertEquals(SmbComTransaction.TRANSACTION_BUF_SIZE, buffer.length, "Buffer should have correct size");

                        // Simulate some work
                        buffer[0] = (byte) i;

                        // Release buffer
                        BufferCache.releaseBuffer(buffer);
                        successCount.incrementAndGet();

            // Create a buffer with sample data
            byte[] buffer = new byte[100];
            // Fill with some test data
            for (int i = 0; i < buffer.length; i++) {
                buffer[i] = (byte) (i % 256);
            }

            int result = resp.readDataWireFormat(buffer, 0, 40);

                    if (index % 3 == 0) {
                        // Some threads wipe password
                        auth.secureWipePassword();
                    } else if (index % 3 == 1) {
                        // Some threads close authenticator
                        auth.close();
                    } else {
                        // Some threads try to read password
                        try {

    @Mock
    private Properties mockProperties;

    private PropertyConfiguration config;

    @BeforeEach
    void setUp() throws CIFSException {
        Properties props = new Properties();
        // Set some default test properties
        props.setProperty("jcifs.smb.client.username", "testuser");
        props.setProperty("jcifs.smb.client.password", "testpass");
        props.setProperty("jcifs.smb.client.domain", "testdomain");

    @Mock
    CIFSContext mockContext;

    /**
     * Simple in-test implementation of CredentialsInternal to exercise the API surface.
     * It validates inputs, records calls, and delegates some behavior to collaborators
     * so we can verify interactions.
     */
    static class TestCredentials implements CredentialsInternal {
        private final String domain;
        private final boolean anonymous;

     */
    @Test
    public void testTreesCollectionCleanup() {
        // Given
        SmbSessionImpl session = new SmbSessionImpl(mockContext, "testhost", "testdomain", mockTransport);

        // Add some trees
        SmbTreeImpl tree1 = session.getSmbTree("share1", null);
        SmbTreeImpl tree2 = session.getSmbTree("share2", null);
        assertNotNull(tree1);
        assertNotNull(tree2);

        MockitoAnnotations.openMocks(this);
        // Using concrete implementation for integration testing
        // Note: DfsReferralDataImpl default constructor creates an object with null server/share/path
        // Some methods like fixupHost/fixupDomain require these to be set via combine() or fromReferral()
        concreteImplementation = createInitializedDfsReferralDataImpl();
    }