send(new SmbComOpenAndX(unc, access, flags, null), response);
            f = response.fid;
        }

        return f;
    }

    void open(final int flags, final int access, final int attrs, final int options) throws SmbException {
        if (isOpen()) {
            return;
        }
        fid = open0(flags, access, attrs, options);
        opened = true;
        tree_num = tree.tree_num;

        }

        try (SmbFileHandleImpl fh = ensureOpen(); SmbTreeHandleImpl th = fh.getTree()) {
            if (log.isDebugEnabled()) {
                log.debug("write: fid=" + fh + ",off=" + off + ",len=" + len + ",fp=" + this.fp);
            }

            int w;
            do {

        }
        // ensure file is open
        try (SmbFileHandleImpl fd = ensureOpen(); SmbTreeHandleImpl th = fd.getTree()) {

            if (log.isTraceEnabled()) {
                log.trace("read: fid=" + fd + ",off=" + off + ",len=" + len);
            }

            final int type = this.file.getType();
            int r, n;

        assertEquals(0, response.deviceState);
        assertEquals(0, response.action);
        assertEquals(0, response.serverFid);
    }

    @Test
    void testSetFid() {
        response.fid = 123;
        assertEquals(123, response.fid);
    }

    @Test
    void testSetFileAttributes() {
        response.fileAttributes = 0x20; // ATTR_ARCHIVE
        assertEquals(0x20, response.fileAttributes);
    }

    @Test

        int r, n;
        final SmbComReadAndXResponse response = new SmbComReadAndXResponse(b, off);
        do {
            r = len > readSize ? readSize : len;
            file.send(new SmbComReadAndX(file.fid, fp, r, null), response);
            n = response.dataLength;
            if (n <= 0) {
                return (int) (fp - start > 0L ? fp - start : -1);
            }
            fp += n;
            len -= n;

        } else if ((pipe.pipeType & SmbNamedPipe.PIPE_TYPE_TRANSACT) == SmbNamedPipe.PIPE_TYPE_TRANSACT) {
            ensureOpen();
            final TransTransactNamedPipe req = new TransTransactNamedPipe(pipe.fid, b, off, len);
            if (dcePipe) {
                req.maxDataCount = 1024;
            }
            pipe.send(req, new TransTransactNamedPipeResponse(pipe));
        }
    }

        smbTree.session = smbSession;
        smbTree.tree_num = 1;

        // Mock the SmbFile
        smbFile = mock(SmbFile.class);
        smbFile.tree = smbTree;
        smbFile.fid = 1;
        smbFile.tree_num = 1;

        when(smbFile.isFile()).thenReturn(true);
        when(smbFile.getUncPath()).thenReturn("\\\\server\\share\\file.txt");
        when(smbFile.isOpen()).thenReturn(true);