SmbFileHandleImpl result = stream.ensureOpen();
        assertSame(fd, result);
        verify(handle, times(1)).ensureOpen();
    }

    @Test
    @DisplayName("close() does nothing (no delegate interactions)")
    void close_isNoop() throws Exception {
        // Verify close() is a no-op and does not call handle/tree/fd
        SmbPipeInputStream stream = newStreamWithInit(true);

    void decodesErrorStructureThroughReadBytesWireFormat() throws Exception {
        // For STATUS_INVALID_PARAMETER the override makes isErrorResponseStatus() return false,
        // so readBytesWireFormat() is invoked and must delegate back to readErrorResponse() when it sees size=9.
        byte[] header = buildHeader(NtStatus.NT_STATUS_INVALID_PARAMETER);
        byte[] body = buildErrorBody(2, 3, new byte[] { (byte) 0xAA, (byte) 0xBB, (byte) 0xCC });

        assertThrows(NullPointerException.class, () -> target.unwrap(null));
    }

    @Test
    @DisplayName("getPipe, getPipeType, getUncPath delegate to underlying pipe")
    void testBasicAccessors() {
        when(pipe.getPipeType()).thenReturn(0x123456);
        assertSame(pipe, target.getPipe());
        assertEquals(0x123456, target.getPipeType());

            assertEquals(SERVER_PRINCIPAL_NAME, ticket.getServerPrincipalName());
            assertNotNull(ticket.getEncData());

            // Also test getters that delegate to KerberosEncData
            assertEquals(USER_PRINCIPAL_NAME, ticket.getUserPrincipalName());
            assertEquals(USER_REALM, ticket.getUserRealm());
        }
    }

     * in configuration or processing logic.
     */
    protected static final String URL_EXCLUDE_PATTERN = "url_exclude_pattern";

    /** The underlying index update callback to delegate operations to. */
    protected IndexUpdateCallback indexUpdateCallback;

    /** Factory for creating crawler clients to handle different URL schemes. */
    protected CrawlerClientFactory crawlerClientFactory;

    /** The key of the message: Failed to download an elevate word file. */
    public static final String ERRORS_failed_to_download_elevate_file = "{errors.failed_to_download_elevate_file}";

    /** The key of the message: Failed to upload an elevate word file. */
    public static final String ERRORS_failed_to_upload_elevate_file = "{errors.failed_to_upload_elevate_file}";

    public static final String LABELS_suggest_word_type_query = "{labels.suggest_word_type_query}";

    /** The key of the message: Elevate Word */
    public static final String LABELS_elevate_word_configuration = "{labels.elevate_word_configuration}";

    /** The key of the message: Elevate Word */
    public static final String LABELS_elevate_word_title_details = "{labels.elevate_word_title_details}";

        verify(mockResponse, never()).setStatus(any(int.class));
    }

    /**
     * Test case for the instance method doAuthentication.
     * It should just delegate to the static authenticate method.
     * @throws IOException
     */
    @Test
    public void testDoAuthentication() throws IOException {
        // Setup: No "Authorization" header to follow a simple path

              @Override
              public List<String> create(String[] elements) {
                List<String> delegate = newArrayList(elements);
                return new ForwardingList<String>() {
                  @Override
                  protected List<String> delegate() {
                    return delegate;
                  }

                  @Override

        verify(tree).send(reqCap.capture(), any(), any(), any());
        assertTrue(reqCap.getValue() instanceof Smb2ChangeNotifyRequest);
    }

    // call() should delegate to watch() and return the same list
    @Test
    @DisplayName("call() delegates to watch() and returns same result")
    void call_delegatesToWatch() throws Exception {