byte[] data = getData();
        System.arraycopy(data, 0, dst, dstIndex, data.length);
        return data.length;
    }

    @Override
    public int decode(byte[] buffer, int bufferIndex, int len) throws SMBProtocolDecodingException {
        if (len < 20) {
            throw new SMBProtocolDecodingException("Invalid RDMA Transform Capabilities context length: " + len);
        }

        int start = bufferIndex;

        }

        @ParameterizedTest
        @ValueSource(ints = { 0, 2, -2, Integer.MAX_VALUE })
        @DisplayName("readSetupWireFormat returns 0 regardless of buffer and length")
        void readSetupWireFormatReturnsZero(int len) {
            TransWaitNamedPipeResponse resp = new TransWaitNamedPipeResponse();

                                 int length) throws IOException;
    
    /**
     * Perform RDMA write operation
     */
    public abstract void rdmaWrite(RdmaMemoryRegion localRegion,
                                  long remoteAddress,
                                  int remoteKey,
                                  int length) throws IOException;
    
    /**

                + (challengeBytes == null ? "null" : "<" + challengeBytes.length + " bytes>") + ",context="
                + (contextBytes == null ? "null" : "<" + contextBytes.length + " bytes>") + ",targetInformation="
                + (targetInformationBytes == null ? "null" : "<" + targetInformationBytes.length + " bytes>") + ",flags=0x"
                + jcifs.util.Hexdump.toHexString(getFlags(), 8) + "]";
    }

                configConfigMap.put(key.substring(CONFIG_PREFIX.length()), entry.getValue());
            } else if (key.startsWith(CLIENT_PREFIX)) {
                clientConfigMap.put(key.substring(CLIENT_PREFIX.length()), entry.getValue());
            } else if (key.startsWith(XPATH_PREFIX)) {
                xpathConfigMap.put(key.substring(XPATH_PREFIX.length()), entry.getValue());
            } else if (key.startsWith(META_PREFIX)) {

     * - Byte 1: High bit of 17-bit length field
     * - Bytes 2-3: Lower 16 bits of length field
     */
    private static byte[] messageHeader(int length) {
        byte[] h = new byte[4];
        h[0] = (byte) SessionServicePacket.SESSION_MESSAGE;
        h[1] = (byte) ((length >> 16) & 0x01);
        h[2] = (byte) ((length >> 8) & 0xFF);
        h[3] = (byte) (length & 0xFF);
        return h;
    }

    /**

    }

    @Test
    @DisplayName("accept: length-based filter evaluates negative/zero/positive sizes")
    void accept_lengthBasedFilter_handlesNumericEdges() throws Exception {
        // Arrange: filter that accepts only strictly positive length
        SmbFileFilter filter = f -> f.length() > 0;

        // negative size -> reject
        when(smbFile.length()).thenReturn(-1L);

            long offset = 1024L;
            long length = 2048L;
            int flags = Smb2Lock.SMB2_LOCKFLAG_EXCLUSIVE_LOCK;

            lock = new Smb2Lock(offset, length, flags);

            assertNotNull(lock);
        }

        @Test
        @DisplayName("Should create lock with zero offset and length")
        void testConstructorWithZeroValues() {

    @Override
    protected String doBuildColumnString(String dm) {
        StringBuilder sb = new StringBuilder();
        sb.append(dm).append(name);
        if (sb.length() > dm.length()) {
            sb.delete(0, dm.length());
        }
        sb.insert(0, "{").append("}");
        return sb.toString();
    }

    // ===================================================================================

        SMBUtil.writeInt4(messageLength, buffer, bufferIndex + 12);
        System.arraycopy(testData, 0, buffer, bufferIndex + 16, testData.length);

        // Decode
        int bytesDecoded = response.decode(buffer, bufferIndex, buffer.length);

        // Verify results
        assertEquals(namedPipeState, response.getNamedPipeState());
        assertEquals(readDataAvailable, response.getReadDataAvailable());