// NOP
                }
            }
        }
        return buf.toString();
    }

    /**
     * Normalizes a URL by removing fragments, resolving relative paths, and cleaning up.
     *
     * @param u the URL to normalize
     * @return the normalized URL
     */
    protected String normalizeUrl(final String u) {
        if (u == null) {

     * resolved. If the names cannot be resolved (e.g. due to temporary
     * network failure), the said methods will return default values (usually
     * <code>S-X-Y-Z</code> strings of fragments of).
     * <p>
     * Alternatively <code>getSecurity(true)</code> may be used to resolve all
     * SIDs together and detect network failures.
     *
     * @return array of ACEs

            assertThrows(CIFSException.class, handle::getSessionKey);
        }
    }

    @Nested
    @DisplayName("Send/Receive Fragment Tests")
    class SendReceiveFragmentTests {

        @Test
        @DisplayName("Should send and receive fragment successfully")
        void testDoSendReceiveFragment_Success() throws Exception {
            DcerpcPipeHandle handle = createMockedDcerpcPipeHandle();

    /**
     * First fragment flag - indicates first fragment of a multi-fragment message
     */
    int DCERPC_FIRST_FRAG = 0x01; /* First fragment */
    /**
     * Last fragment flag - indicates last fragment of a multi-fragment message
     */
    int DCERPC_LAST_FRAG = 0x02; /* Last fragment */
    /**
     * Pending cancel flag - indicates cancel was pending at sender
     */

     * resolved. If the names cannot be resolved (e.g. due to temporary
     * network failure), the said methods will return default values (usually
     * {@code S-X-Y-Z} strings of fragments of).
     * <p>
     * Alternatively {@code getSecurity(true)} may be used to resolve all
     * SIDs together and detect network failures.
     */
    /**

    /**
     * First fragment flag - indicates first fragment of a multi-fragment message
     */
    int DCERPC_FIRST_FRAG = 0x01; /* First fragment */
    /**
     * Last fragment flag - indicates last fragment of a multi-fragment message
     */
    int DCERPC_LAST_FRAG = 0x02; /* Last fragment */
    /**
     * Pending cancel flag - indicates cancel was pending at sender
     */

    }

    @Nested
    @DisplayName("Constants Validation Tests")
    class ConstantsValidationTests {

        @Test
        @DisplayName("All fragment flags should have unique values")
        void testFragmentFlagsUniqueness() {
            // Verify that fragment flags are unique and follow bit pattern
            assertEquals(1, Integer.bitCount(DcerpcConstants.DCERPC_FIRST_FRAG), "DCERPC_FIRST_FRAG should be a single bit");

    /**
     * Receives a DCERPC fragment from the remote endpoint
     * @param buf the buffer to receive the fragment data
     * @return the number of bytes received
     * @throws IOException if an I/O error occurs during reception
     */
    protected abstract int doReceiveFragment(byte[] buf) throws IOException;

    /**
     * Sends a DCERPC fragment and receives the response in a single operation

    }

    /**
     * Get the maximum size for fragmented operations
     *
     * @return maximum fragmented size in bytes
     */
    public int getMaxFragmentedSize() {
        return maxFragmentedSize;
    }

    /**
     * Set the maximum size for fragmented operations
     *
     * @param maxFragmentedSize maximum fragmented size in bytes
     */

    }

    /**
     * Get maximum fragmented size
     *
     * @return maximum fragmented size in bytes
     */
    public int getMaxFragmentedSize() {
        return maxFragmentedSize;
    }

    /**
     * Set maximum fragmented size
     *
     * @param maxFragmentedSize maximum fragmented size in bytes
     */