@Override
            public void setFileId(byte[] fileId) {
                this.fileId = fileId;
                this.setCount++;
            }

            public byte[] getFileId() {
                return fileId;
            }

            public int getSetCount() {
                return setCount;
            }
        }

        // When

        resp.decode(packet, 0);
        assertEquals(Smb2IoctlRequest.FSCTL_SRV_COPYCHUNK, resp.getCtlCode());
        assertEquals(0x1234, resp.getIoctlFlags());
        assertNotNull(resp.getFileId());
        assertEquals(16, resp.getFileId().length);
        assertEquals(12, resp.getOutputLength());

        SrvCopyChunkCopyResponse od = resp.getOutputData(SrvCopyChunkCopyResponse.class);
        assertEquals(1, od.getChunksWritten());

     * @return the file ID if available, null otherwise
     */
    public byte[] getExistingHandle(String path) {
        HandleInfo info = getHandleForReconnect(path);
        return info != null ? info.getFileId() : null;
    }

    /**
     * Store handle information after successful create
     * @param path the file path
     * @param fileId the 16-byte file ID
     * @param guid the handle GUID
     */

    }

    @Override
    public byte[] getName() {
        return CONTEXT_NAME_BYTES;
    }

    /**
     * Get the file ID
     * @return the 16-byte file ID
     */
    public byte[] getFileId() {
        return Arrays.copyOf(fileId, 16);
    }

    @Override
    public int size() {
        // Context header (16) + name length (4) + padding to 8-byte alignment + data (16)

            if (th.isSMB2()) {
                final Smb2IoctlRequest req = new Smb2IoctlRequest(th.getConfig(), Smb2IoctlRequest.FSCTL_PIPE_PEEK, fd.getFileId());
                req.setMaxOutputResponse(16);
                req.setFlags(Smb2IoctlRequest.SMB2_O_IOCTL_IS_FSCTL);
                final Smb2IoctlResponse resp = th.send(req, RequestParam.NO_RETRY);

                if (!append && this.smb2) {
                    // no open option for truncating, need to truncate the file
                    final Smb2SetInfoRequest treq = new Smb2SetInfoRequest(th.getConfig(), fh.getFileId());
                    treq.setFileInformation(new FileEndOfFileInformation(0));
                    th.send(treq, RequestParam.NO_RETRY);
                }
            }
        } catch (final CIFSException e) {

        when(handle.getTree()).thenReturn(tree);
        when(tree.isSMB2()).thenReturn(true);
        when(tree.getConfig()).thenReturn(mock(Configuration.class));
        when(handle.getFileId()).thenReturn(fileId);
        when(tree.send(any(CommonServerMessageBlockRequest.class), any(), any(), any())).thenReturn(resp);
    }

    // Prepare SMB1 flow with a given response

        }

        DurableHandleReconnect reconnect = new DurableHandleReconnect(fileId);

        assertEquals("DHnC", new String(reconnect.getName()));
        assertArrayEquals(fileId, reconnect.getFileId());
        assertTrue(reconnect.size() > 0);

        // Test encoding
        byte[] buffer = new byte[reconnect.size()];
        int encoded = reconnect.encode(buffer, 0);

                }

                try {
                    if (th.isSMB2()) {
                        final Smb2ReadRequest request = new Smb2ReadRequest(th.getConfig(), fd.getFileId(), b, off);
                        request.setOffset(type == SmbConstants.TYPE_NAMED_PIPE ? 0 : this.fp);
                        request.setReadLength(r);

        when(tree.isConnected()).thenReturn(true);
        assertTrue(h.isValid());
        h.markClosed();
        assertFalse(h.isValid());
    }

    @Test
    @DisplayName("getFid/getFileId throw SmbException when invalid")
    void getters_throw_whenInvalid() {
        when(cfg.isTraceResourceUsage()).thenReturn(false);
        stubValidTree(1L, true, true);