generator.saveImage(input, outputFile);
            }
            assertImageSize(outputFile, 100, 100);
        } catch (IllegalStateException e) {
            // Expected when container is not initialized
            if (e.getMessage().contains("Not initialized")) {
                // Skip test when container is not available
                return;
            }
            throw e;

        TestHttpServletResponse response = new TestHttpServletResponse();
        TestFilterChain chain = new TestFilterChain();

        try {
            manager.process(request, response, chain);
            fail("Expected ServletException");
        } catch (ServletException e) {
            assertEquals("Test error", e.getMessage());
        }
    }

    @Test

    }

    @Test
    public void test_fessConfig_ignoreEmptyContent() {
        final FessConfig config = ComponentUtil.getFessConfig();
        // Verify the config returns the expected default value (false)
        assertFalse(config.isCrawlerDocumentFileIgnoreEmptyContent());
    }

    @Test
    public void test_responseData_defaultValues() {

/**
 * Manages a dictionary file for stemmer overrides.
 * This class handles reading, parsing, and updating files that contain
 * stemmer override rules, where each rule maps an input word to an
 * output stem. The file format is expected to be `input => output`.
 *
 * The class provides methods for retrieving, adding, updating, and
 * deleting stemmer override items, as well as reloading the dictionary
 * from its source file.
 */

            // May not throw exception but return unexpected result
            assertNotNull(result);
        } catch (Exception e) {
            assertTrue(true); // Expected exception
        }
    }

    @Test
    public void test_getJarFile_exists() throws IOException {
        // Create a mock jar file
        Path jarPath = tempDir.resolve("test-theme.jar");

        paramMap.put("url_exclude_pattern", ".*");

        try {
            indexUpdateCallback.isUrlCrawlable(paramMap, null);
            fail("Expected NullPointerException for null URL");
        } catch (NullPointerException e) {
            // Expected behavior - the method doesn't handle null URLs
        }
    }

    @Test
    public void test_isUrlCrawlable_nullUrlWithoutPattern() {

        assertNotNull(version, "Version should not be null");

        logger.info("Stats version: {}", version);
        logger.info("Stats status: {}", status);

        // Verify stats contain expected fields
        // Note: The actual fields may vary depending on the implementation
        // Common fields might include: document count, index size, etc.
        assertTrue(res.size() > 0, "Response should contain stats data");

    //                                                                        ============
    /**
     * Verify the CRUD mode.
     * @param crudMode The CRUD mode.
     * @param expectedMode The expected mode.
     * @param dictId The dictionary ID.
     */
    protected void verifyCrudMode(final int crudMode, final int expectedMode, final String dictId) {
        if (crudMode != expectedMode) {

            logger.warn("Failed to export documents.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

        return resultBuf.toString();
    }

    /**
     * Exports a single document as a file.
     *
     * @param source the document source map
     * @param exportPath the base export directory path
     * @param excludeFields the set of field names to exclude from output

        try {
            queryProcessor.execute(context, termQuery, 1.0f);
            fail();
        } catch (InvalidQueryException e) {
            // expected
            assertTrue(e.getMessage().contains("Unknown q:"));
        }
    }

    @Test
    public void test_convertPrefixQuery_withDefaultField() throws Exception {