final ExtractData result = extractor.getText(trackableStream, null);

            assertNotNull(result);
            assertNotNull(result.getContent());
            assertTrue(result.getContent().contains("テスト"));
        }
    }

    /**
     * Test that MsExcelExtractor properly closes resources on successful extraction.
     */

        final ExtractData extractData = markdownExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();
        logger.info(content);

        // Verify plain text extraction
        assertTrue(content.contains("Introduction"));
        assertTrue(content.contains("This is a sample Markdown document"));

        final ExtractData result = textExtractor.getText(in, null);

        assertNotNull(result);
        assertNotNull(result.getContent());
        assertTrue("Should contain line 0", result.getContent().contains("Line 0"));
        assertTrue("Should contain line 9999", result.getContent().contains("Line 9999"));
    }

    /**
     * Test extraction with various Unicode characters.
     */

        assertEquals("test-document.pdf", result.getContent());
    }

    /**
     * Test extraction with null parameters map.
     */
    public void test_getText_withNullParams() {
        final InputStream in = new ByteArrayInputStream(new byte[0]);

        final ExtractData result = filenameExtractor.getText(in, null);

        assertNotNull(result);
        assertEquals("", result.getContent());
    }

    /**

        final ExtractData result = zipExtractor.getText(in, null);

        assertNotNull(result);
        assertNotNull(result.getContent());
        assertFalse(result.getContent().isEmpty());
    }

    /**
     * Test that ZipExtractor handles mixed valid and invalid entries gracefully.
     * Should continue processing valid entries even when some fail.
     */

        assertEquals(content, data.getContent());

        String newContent = "New content";
        data.setContent(newContent);
        assertEquals(newContent, data.getContent());

        data.setContent(null);
        assertNull(data.getContent());
    }

    public void test_putValue() {
        // Test putValue method
        ExtractData data = new ExtractData();

        data.putValue("title", "Test Title");

        final ExtractData extractData = jsonExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();
        logger.info(content);

        // Verify content contains expected fields
        assertTrue(content.contains("title"));
        assertTrue(content.contains("Sample Document"));

        final ExtractData extractData = csvExtractor.getText(in, null);
        CloseableUtil.closeQuietly(in);

        final String content = extractData.getContent();
        logger.info(content);

        // Verify header extraction
        assertTrue(content.contains("Name"));
        assertTrue(content.contains("Email"));
        assertTrue(content.contains("Age"));

                } else {
                    pair.getSecond().add(new Pair<>(Pattern.compile(regex), entity.getContent()));
                }
            } else {
                pair.getFirst().put(toLowerCase(entity.getTerm()), entity.getContent());
            }
        });
        this.relatedContentMap = relatedContentMap;
        return relatedContentMap.size();
    }

                            map.put(ExtractData.RESOURCE_NAME_KEY, filename);
                            buf.append(extractor.getText(new IgnoreCloseInputStream(is), map).getContent());
                            buf.append('\n');
                        } catch (final Exception e) {
                            if (logger.isDebugEnabled()) {