DummySmbResourceLocator loc = new DummySmbResourceLocator(url);

        // Initially no DFS referral
        assertNull(loc.getDfsReferral());

        // Set and retrieve DFS referral
        loc.setDfsReferral(dfs);
        assertSame(dfs, loc.getDfsReferral());
    }

import jcifs.Configuration;
import jcifs.internal.dfs.DfsReferralResponseBuffer;
import jcifs.internal.smb1.trans.SmbComTransaction;
import jcifs.internal.smb1.trans.SmbComTransactionResponse;

/**
 * Trans2 GetDfsReferral response message for DFS referral queries.
 * This class handles the response from a TRANS2_GET_DFS_REFERRAL request, which returns
 * DFS referral information for redirecting clients to distributed file system targets.
 */

    @Test
    @DisplayName("DFS getters and handleDFSReferral update paths and share")
    void testDfsBehavior() {
        SmbResourceLocatorImpl l = locator("smb://server/share/path");
        assertNull(l.getDfsReferral());

        DfsReferralData dr = mock(DfsReferralData.class);
        when(dr.getServer()).thenReturn("dfs-server");
        when(dr.getShare()).thenReturn("dfs-share");

 */

package jcifs.internal.smb1.trans2;

import jcifs.Configuration;
import jcifs.internal.dfs.DfsReferralRequestBuffer;
import jcifs.internal.smb1.trans.SmbComTransaction;

/**
 * Trans2 GetDfsReferral request message for DFS referral queries.
 * This class implements the TRANS2_GET_DFS_REFERRAL transaction to request
 * DFS referral information for distributed file system path resolution.
 */

            this.share = shr;
        }
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbResourceLocator#getDfsReferral()
     */
    @Override
    public DfsReferralData getDfsReferral() {
        return this.dfsReferral;
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.SmbResourceLocator#getName()
     */

    @Override

    String getName();

    /**
     * Returns the DFS referral data associated with this resource if it has been resolved through DFS.
     *
     * @return dfs referral data
     */
    DfsReferralData getDfsReferral();

    /**
     * Everything but the last component of the URL representing this SMB
     * resource is effectively it's parent. The root URL <code>smb://</code>