@DisplayName("ensureTreeConnected propagates CIFSException from handle")
    void ensureTreeConnected_propagatesException() throws Exception {
        // Arrange
        SmbPipeOutputStream out = newStream();
        CIFSException boom = new CIFSException("tree-fail");
        when(handle.ensureTreeConnected()).thenThrow(boom);

        // Act + Assert
        CIFSException ex = assertThrows(CIFSException.class, out::ensureTreeConnected);

    /**
     *
     * @return this pipe's output stream
     * @throws CIFSException if an error occurs
     */
    @Override
    SmbPipeOutputStream getOutput() throws CIFSException;

    /**
     * Ensures that the tree connection is established and returns it.
     *
     * @return tree connection
     * @throws CIFSException if an error occurs connecting to the tree
     */

            final ResourceNameFilter filter, final int searchAttributes) throws CIFSException {
        super(th, parent, wildcard, filter, searchAttributes);
    }

    @SuppressWarnings("resource")
    @Override
    protected final FileEntry open() throws CIFSException {
        final SmbResourceLocator loc = this.getParent().getLocator();
        final String unc = loc.getUNCPath();

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.mockito.Mock;

import jcifs.BaseTest;
import jcifs.BufferCache;
import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.DfsResolver;
import jcifs.NameServiceClient;
import jcifs.SidResolver;
import jcifs.SmbPipeResource;
import jcifs.SmbResource;
import jcifs.SmbTransportPool;

        @BeforeEach
        void setUp() throws CIFSException {
            doReturn(mockTreeHandle).when(smbFile).ensureTreeConnected();
            when(mockTreeHandle.getConfig()).thenReturn(mockConfig);
        }

        @Test
        void testExists() throws SmbException, CIFSException {
            // Arrange
            when(mockTreeHandle.isSMB2()).thenReturn(false);

     * @param filter
     *            optional resource name filter
     * @throws CIFSException
     *            if enumeration fails
     */
    public NetServerEnumIterator(final SmbFile parent, final SmbTreeHandleImpl th, final String wildcard, final int searchAttributes,
            final ResourceNameFilter filter) throws CIFSException {
        this.parent = parent;
        this.nameFilter = filter;

     *
     * @param other the other resource locator to compare with
     * @return whether the paths share a common root
     * @throws CIFSException if an error occurs during comparison
     */
    boolean overlaps(SmbResourceLocator other) throws CIFSException;

    /**
     * Internal: for testing only
     *
     * @param dr the DFS referral data to process
     * @param reqPath the requested path to resolve

        this.delegate = delegate;
    }

    /**
     * {@inheritDoc}
     *
     * @throws CIFSException if the URL is malformed or there is an error creating the SMB resource
     *
     * @see jcifs.CIFSContext#get(java.lang.String)
     */
    @Override
    public SmbResource get(final String url) throws CIFSException {
        try {
            return new SmbFile(url, this);
        } catch (final MalformedURLException e) {

     * @param name the resource name to test
     * @return whether the given filename should be included
     * @throws CIFSException if an error occurs while accessing the resource
     */
    boolean accept(SmbResource parent, String name) throws CIFSException;

     * @return subject associated with the credentials
     */
    Subject getSubject();

    /**
     * Refresh the credentials.
     * @throws CIFSException if refresh fails
     */
    void refresh() throws CIFSException;