CloseableUtil.closeQuietly(in);

        // Verify heading metadata
        final String[] headings = extractData.getValues("headings");
        assertNotNull(headings);
        assertTrue(headings.length > 0);

        boolean foundIntroduction = false;
        boolean foundFeatures = false;
        for (final String heading : headings) {
            if (heading.contains("Introduction")) {
                foundIntroduction = true;

                    headings.add(headingText.toString());
                }
                super.visit(heading);
            }
        });

        if (!headings.isEmpty()) {
            extractData.putValues("headings", headings.toArray(new String[0]));
        }
    }

    /**
     * Extracts link URLs from the document.
     *
     * @param document the parsed Markdown document

        String[][] readings1 = new String[1][];
        readings1[0] = new String[] { "doc" };
        items[0] = new SuggestItem(new String[] { "ドキュメント" }, readings1, new String[] { "content" }, 1, 0, -1, new String[] { "tag1" },
                new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);

        String[][] readings2 = new String[1][];

        String[] text = { "text" };
        String[][] readings = { { "reading" } };

        SuggestItem item = new SuggestItem(text, readings, null, 0L, 0L, 1.0f, null, null, null, SuggestItem.Kind.DOCUMENT);

        assertNotNull(item);
        assertEquals("text", item.getText());
        assertArrayEquals(readings, item.getReadings());
        assertNotNull(item.getFields());

        String[][] readings1 = new String[1][];
        readings1[0] = new String[] { "test1" };
        String[][] readings2 = new String[1][];
        readings2[0] = new String[] { "test2" };
        String[][] readings3 = new String[1][];
        readings3[0] = new String[] { "test3" };

        SuggestItem item1 = new SuggestItem(new String[] { "テスト1" }, readings1, new String[] { "content" }, 1, 0, -1,

    }

    @Test
    public void testMultipleReadingsConversion() {
        // Test conversion of multiple readings to SuggestItem format
        String word = "multi reading";
        float boost = 1.0f;
        List<String> readings = Arrays.asList("reading1", "reading2", "reading3", "reading4", "reading5");
        List<String> fields = Arrays.asList("field1");
        List<String> tags = Arrays.asList("tag1");

        String field = "content";

        List<String> readings1 = converter1.convert(text, field, "en");
        List<String> readings2 = converter2.convert(text, field, "ja");

        assertNotNull(readings1);
        assertNotNull(readings2);
        assertEquals("TEST", readings1.get(0));
        assertEquals("TEST", readings2.get(0));
    }

    @Test

    }

    @Test
    public void testCreateBulkLine() {
        // Test creating bulk line for indexing
        SuggestItem item = new SuggestItem(new String[] { "test text" }, new String[][] { { "reading1" }, { "reading2" } },
                new String[] { "field1", "field2" }, 10, // queryFreq
                5, // docFreq
                2.0f, // userBoost

        queryItems[0] = new SuggestItem(new String[] { "検索", "エンジン" }, readings, new String[] { "content" }, 1, 0, -1, tags, roles, null,
                SuggestItem.Kind.DOCUMENT);

        String[][] readings2 = new String[2][];
        readings2[0] = new String[] { "zenbun", "fuga" };
        readings2[1] = new String[] { "kensaku", "fuga" };
        String[] tags2 = new String[] { "tag3" };

     *
     * @param elevateWord the elevate word
     * @param boost the boost value
     * @param readings the list of readings
     * @param fields the list of fields
     * @param tags the list of tags
     * @param roles the list of roles
     */
    public ElevateWord(final String elevateWord, final float boost, final List<String> readings, final List<String> fields,
            final List<String> tags, final List<String> roles) {