when(treeConnection.hasCapability(999)).thenThrow(new SmbException("Not connected"));
        SmbException ex = assertThrows(SmbException.class, () -> handle.hasCapability(999));
        assertTrue(ex.getMessage().contains("Not connected"));
    }

    @Test
    @DisplayName("getTreeId delegates")
    void getTreeIdDelegates() {
        // Ensures tree id is forwarded from connection

        assertArgumentNotNull("jarFile", jarFile);

        try {
            jarFile.close();
        } catch (final IOException e) {
            logger.log(format("ECL0017", e.getMessage()), e);
        }
    }

        final CmdLineParser parser = new CmdLineParser(options);
        try {
            parser.parseArgument(args);
        } catch (final CmdLineException e) {
            System.err.println(e.getMessage());
            System.err.println("java " + SuggestCreator.class.getCanonicalName() + " [options...] arguments...");
            parser.printUsage(System.err);
            return;
        }

        try {
            executeSuggestCreator();
        } catch (final Exception e) {
            logger.warn("Failed to create suggest data.", e);
            resultBuf.append(e.getMessage()).append("\n");
        } finally {
            if (timeoutTask != null && !timeoutTask.isCanceled()) {
                timeoutTask.cancel();
            }
        }

        return resultBuf.toString();

            } catch (final Throwable t) {
                logger.warn("Failed to create thumbnail: {} -> {} ({}:{})", thumbnailId, responseData.getUrl(),
                        t.getClass().getCanonicalName(), t.getMessage());
                if (logger.isDebugEnabled()) {
                    logger.debug("Details for failed thumbnail creation.", t);
                }
            } finally {
                if (!created) {

        IOException ex = assertThrows(IOException.class, stream::available, "Should convert SmbException to IOException");
        assertTrue(ex.getMessage().contains("boom"));
    }

    @Test
    @DisplayName("ensureTreeConnected delegates to handle")
    void ensureTreeConnected_delegates() throws Exception {

            assertEquals(content.length, bytesRead);
            assertTrue(Arrays.equals(content, buffer));
        } catch (IOException e) {
            fail("IOException should not occur: " + e.getMessage());
        }
    }

    public void test_responseBodyFile() throws IOException {
        // Test response body with file
        ResponseData data = new ResponseData();

                    assertThrows(SMBProtocolDecodingException.class, () -> response.readBytesWireFormat(buffer, 0));

            assertEquals("Expected structureSize = 17", exception.getMessage());
        }

        @Test
        @DisplayName("Should handle response at end of buffer")
        void testResponseAtEndOfBuffer() throws SMBProtocolDecodingException {

            FileUtil.readBytes(largeFile);
            fail("Expected IORuntimeException for large file");
        } catch (final IORuntimeException e) {
            assertTrue("Error message should mention file size", e.getMessage().contains("File too large"));
        }
    }

    /**
     * Test readBytes with file within size limit
     *
     * @throws Exception
     */
    @Test

        try {
            executeThumbnailGenerator();
        } catch (final Exception e) {
            logger.warn("Failed to generate thumbnails.", e);
            resultBuf.append(e.getMessage()).append("\n");
        } finally {
            if (timeoutTask != null && !timeoutTask.isCanceled()) {
                timeoutTask.cancel();
            }
        }

        return resultBuf.toString();