import jcifs.internal.dfs.DfsReferralDataImpl;
import jcifs.internal.dfs.DfsReferralDataInternal;

/**
 * Caching DFS resolver implementation
 *
 *
 * <p>This class is intended for internal use.</p>
 */
public class DfsImpl implements DfsResolver {

    private static final DfsReferralDataImpl NEGATIVE_ENTRY = new DfsReferralDataImpl();

    private static class CacheEntry<T> {

        long expiration;
        Map<String, T> map;

        // Instantiate the class under test
        dfsImpl = new DfsImpl(mockContext);
    }

    // Test for the constructor
    @Test
    void testDfsImplConstructor() {
        // The constructor is called in setUp(), so if no exception is thrown, this test passes.
        assertNotNull(dfsImpl);
    }

    // Tests for isTrustedDomain
    @Test

import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mock;
import org.mockito.junit.jupiter.MockitoExtension;

import jcifs.smb.DfsImpl;
import jcifs.smb.SmbTransportInternal;

@ExtendWith(MockitoExtension.class)
class DfsResolverTest {

    private DfsResolver dfsResolver;

    @Mock
    private CIFSContext mockContext;

    @Mock

#log4j.logger.jcifs.internal.smb2.create: DEBUG
#log4j.logger.jcifs.smb.SmbTreeConnection: DEBUG
#log4j.logger.jcifs.smb.SmbTransportImpl: DEBUG
#log4j.logger.jcifs.util.transport.Transport: DEBUG
#log4j.logger.jcifs.smb.DfsImpl: DEBUG
#log4j.logger.jcifs.smb: DEBUG
#log4j.logger.jcifs.smb.SmbFileOutputStream: TRACE
#log4j.logger.jcifs.smb.SigningDigest: TRACE

import jcifs.SmbPipeResource;
import jcifs.SmbResource;
import jcifs.SmbTransportPool;
import jcifs.netbios.NameServiceClientImpl;
import jcifs.smb.BufferCacheImpl;
import jcifs.smb.CredentialsInternal;
import jcifs.smb.DfsImpl;
import jcifs.smb.Handler;
import jcifs.smb.NtlmPasswordAuthenticator;
import jcifs.smb.SIDCacheImpl;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbNamedPipe;
import jcifs.smb.SmbTransportPoolImpl;

/**