if (userName != null && userName.length() != 0) {
                user = unicode ? userName.getBytes(UNI_ENCODING) : userName.toUpperCase().getBytes(oem);
            }
            final int userLength = user != null ? user.length : 0;
            final String workstationName = getWorkstation();
            byte[] workstation = null;
            if (workstationName != null && workstationName.length() != 0) {

    // test separators work
    for (int sepLength = 3; sepLength <= 5; sepLength++) {
      for (String separator : ImmutableList.of(",", "\n", ";;", "")) {
        testEncoding(
            encoding.withSeparator(separator, sepLength),
            decoded,
            Joiner.on(separator).join(Splitter.fixedLength(sepLength).split(encoded)));
      }
    }
  }

    // test separators work
    for (int sepLength = 3; sepLength <= 5; sepLength++) {
      for (String separator : ImmutableList.of(",", "\n", ";;", "")) {
        testEncoding(
            encoding.withSeparator(separator, sepLength),
            decoded,
            Joiner.on(separator).join(Splitter.fixedLength(sepLength).split(encoded)));
      }
    }
  }

        ndrBuffer.advance(10);
        assertEquals(10, ndrBuffer.getLength());

        ndrBuffer.setLength(20);
        assertEquals(20, ndrBuffer.getLength());

        // Test with derived buffer
        NdrBuffer derived = ndrBuffer.derive(0);
        derived.setLength(5);
        assertEquals(5, derived.getLength());

        when(tree.send(any(jcifs.internal.Request.class), any(RequestParam.class))).thenReturn(null);

        raf.setLength(100L);

        verify(tree, times(1)).send(any(Smb2SetInfoRequest.class), eq(RequestParam.NO_RETRY));
    }

    @Test
    @DisplayName("setLength(): NT SMBs capability uses Trans2SetFileInformation")
    void setLength_ntsmbs_usesTrans2() throws Exception {

        int notificationType = buf.dec_ndr_long();
        notification.setNotificationType(WitnessEventType.fromValue(notificationType));

        // Length
        int length = buf.dec_ndr_long();
        notification.setLength(length);

        // Number of messages
        int numberOfMessages = buf.dec_ndr_long();

        // Messages array
        List<WitnessNotificationMessage> messages = new ArrayList<>(numberOfMessages);

            //
            // LinkedList<IbvSge> sgeList = new LinkedList<>();
            // IbvSge sge = new IbvSge();
            // sge.setAddr(disniRegion.getAddress());
            // sge.setLength(data.remaining());
            // sge.setLkey(disniRegion.getLocalKey());
            // sgeList.add(sge);
            //
            // sendWR.setSg_list(sgeList);

                off += n;
            }

            doReceiveFragment(stub, isDirect);
            buf.reset();
            buf.setIndex(8);
            buf.setLength(buf.dec_ndr_short());

            if (securityProvider != null) {
                securityProvider.unwrap(buf);
            }

            buf.setIndex(0);

            msg.decode_header(buf);

            dstIndex += writeBytesWireFormat(dst, dstIndex);

            // Set the length field that will be checked by ServerMessageBlock2Request.encode()
            int calculatedLength = testEncodedLength;
            setLength(calculatedLength);

            // Now call the ServerMessageBlock2Request's encode which will do the validation
            int exp = size();
            int actual = getLength();
            if (exp != actual) {

        if (argTypes != null && argTypes.length > 0) {
            for (final Class<?> argType : argTypes) {
                buf.append(argType.getName()).append(", ");
            }
            buf.setLength(buf.length() - 2);
        }
        buf.append(")");
        return new String(buf);
    }

    /**
     * Returns the string representation of the method signature.
     *
     * @param methodName