* @param challenge the server challenge (may be null for some auth types)
     * @return authentication response data
     * @throws CIFSException if authentication fails
     */
    byte[] authenticate(CIFSContext context, byte[] challenge) throws CIFSException;

    /**
     * Gets the session key after successful authentication
     *
     * @return the session key or null if not available
     */

import org.junit.jupiter.params.provider.Arguments;
import org.junit.jupiter.params.provider.MethodSource;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.CIFSException;
import jcifs.ResourceFilter;
import jcifs.SmbConstants;
import jcifs.SmbResource;

@ExtendWith(MockitoExtension.class)
class ShareEnumIteratorTest {

    @Mock
    ResourceFilter filter;

    @Mock
    private NameServiceClient nameServiceClient;

    /**
     * Sets up the mock objects before each test.
     * @throws CIFSException
     */
    @BeforeEach
    void setUp() throws CIFSException {
        ntlmServlet = new TestNtlmServlet();

        // Mock ServletConfig to provide initialization parameters
        Map<String, String> initParams = new HashMap<>();

import java.net.URL;
import java.net.UnknownHostException;
import java.util.Objects;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.Address;
import jcifs.CIFSContext;
import jcifs.CIFSException;
import jcifs.DfsReferralData;
import jcifs.NetbiosAddress;
import jcifs.RuntimeCIFSException;
import jcifs.SmbConstants;
import jcifs.SmbResourceLocator;
import jcifs.internal.util.StringUtil;

        assertTrue(ex instanceof CIFSException, "Should be a CIFSException subtype");

        // Assert throwing/catching behavior with assertThrows
        SMBProtocolDecodingException thrown = assertThrows(SMBProtocolDecodingException.class, () -> {
            throw new SMBProtocolDecodingException();
        }, "Should be throwable via assertThrows");

        assertNull(ex.getMessage(), "Default message should be null");
        assertNull(ex.getCause(), "Default cause should be null");
        assertTrue(ex instanceof CIFSException, "Should be a CIFSException");
        assertTrue(ex instanceof IOException, "Should be an IOException");
    }

    @Test
    @DisplayName("Should create SpnegoException with message")
    void testWithMessage() {

     * @return the filesystem info cast to the specified type
     * @throws CIFSException if the information cannot be cast to the specified type
     */
    @SuppressWarnings("unchecked")
    public <T extends FileSystemInformation> T getInfo(final Class<T> clazz) throws CIFSException {
        if (!clazz.isAssignableFrom(this.info.getClass())) {
            throw new CIFSException("Incompatible file information class");
        }

     * @return the created channel group
     * @throws CIFSException if channel creation fails
     */
    public ChannelGroup createChannels(String sessionId, List<InetAddress> serverAddresses) throws CIFSException {
        if (sessionId == null || sessionId.isEmpty()) {
            throw new CIFSException("Session ID cannot be null or empty");
        }

        assertEquals(SMBProtocolDowngradeException.class.getName(), ex.toString());

        // Assert - type hierarchy: subclass of CIFSException and IOException
        assertTrue(ex instanceof jcifs.CIFSException, "Should extend CIFSException");
        assertTrue(ex instanceof IOException, "Should be an IOException (checked)");
    }

    @ParameterizedTest(name = "Message-only ctor preserves message: [{0}]")

     *
     * @throws CIFSException if an error occurs while opening the file
     */
    public void open() throws CIFSException {
        try (SmbFileHandleImpl fh = ensureOpen()) {}
    }

    /**
     * @param file
     * @param openFlags
     * @return
     * @throws SmbException
     */
    synchronized SmbFileHandleImpl ensureOpen() throws CIFSException {