assertEquals(SmbConstants.TYPE_COMM, tree3.getTreeType());
    }

    // Test case for DFS related methods
    @Test
    void testDfs() throws SmbException {
        SmbTreeImpl tree = new SmbTreeImpl(session, "SHARE", "A:");
        assertFalse(tree.isDfs());
        assertFalse(tree.isInDomainDfs());
        tree.markDomainDfs();

    void ensureOpen_whenClosed_throws() throws Exception {
        SmbPipeHandleImpl handle = newHandleWithBasicStubs(0, "\\\\pipe\\\\bar");
        handle.close();
        SmbException ex = assertThrows(SmbException.class, handle::ensureOpen);
        assertTrue(ex.getMessage().contains("Pipe handle already closed"));
    }

    @Test
    @DisplayName("sendrecv uses SMB2 ioctl when tree is SMB2")

import jcifs.context.BaseContext;
import jcifs.netbios.NbtAddress;
import jcifs.smb.DfsReferral;
import jcifs.smb.NtStatus;
import jcifs.smb.NtlmPasswordAuthentication;
import jcifs.smb.SmbAuthException;
import jcifs.smb.SmbException;
import jcifs.smb.SmbFile;
import jcifs.smb.SmbFileInputStream;

/**
 * This servlet may be used to "browse" the entire hierarchy of resources
 * on an SMB network like one might with Network Neighborhood or Windows

import jcifs.internal.CommonServerMessageBlockResponse;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.SMBSigningDigest;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.SmbException;
import jcifs.util.Hexdump;

/**
 * Base class for SMB2/SMB3 protocol messages.
 *
 * This abstract class provides common functionality for all SMB2/SMB3

        response.setExtended(true);
    }

    /**
     * {@inheritDoc}
     *
     * @see jcifs.smb.SmbFile#getType()
     */
    @Override
    public int getType() throws SmbException {
        return TYPE_NAMED_PIPE;
    }

    /**
     * @return the pipe type
     */
    @Override
    public int getPipeType() {
        return this.pipeType;
    }

    /**

     */
    @Override
    public void getUserSessionKey(final CIFSContext tc, final byte[] chlng, final byte[] dest, final int offset) throws SmbException {
        if (this.hashesExternal) {
            return;
        }
        super.getUserSessionKey(tc, chlng, dest, offset);
    }

import jcifs.smb1.netbios.NbtAddress;
import jcifs.smb1.smb1.DfsReferral;
import jcifs.smb1.smb1.NtStatus;
import jcifs.smb1.smb1.NtlmPasswordAuthentication;
import jcifs.smb1.smb1.SmbAuthException;
import jcifs.smb1.smb1.SmbException;
import jcifs.smb1.smb1.SmbFile;
import jcifs.smb1.smb1.SmbFileInputStream;
import jcifs.smb1.smb1.SmbSession;
import jcifs.smb1.util.Base64;
import jcifs.smb1.util.LogStream;
import jcifs.smb1.util.MimeMap;

     */
    static class TestSigningDigest extends SigningDigest {
        boolean called;
        int lastLength;

        TestSigningDigest() throws SmbException {
            super(new byte[16], false);
        }

        @Override
        void sign(byte[] data, int offset, int length, ServerMessageBlock request, ServerMessageBlock response) {
            called = true;

import jcifs.internal.RequestWithPath;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.SMBSigningDigest;
import jcifs.internal.util.SMBUtil;
import jcifs.smb.SmbException;
import jcifs.util.Hexdump;
import jcifs.util.Strings;

/**
 * Base class for all SMB1/CIFS protocol message blocks.
 * This abstract class provides the fundamental structure and common functionality for SMB1 request

        case SMB_COM_NT_TRANSACT_SECONDARY -> "SMB_COM_NT_TRANSACT_SECONDARY";
        default -> "UNKNOWN";
        };
        final String str = errorCode == 0 ? "0" : SmbException.getMessageByCode(errorCode);
        return "command=" + c + ",received=" + received + ",errorCode=" + str + ",flags=0x" + Hexdump.toHexString(flags & 0xFF, 4)