assertEquals(35L, item.getDocFreq());
        assertEquals(2.0f, item.getUserBoost(), 0.001f);
        assertEquals(2, item.getReadings().length);
        assertArrayEquals(new String[] { "reading1", "reading2" }, item.getReadings()[0]);
        assertArrayEquals(new String[] { "reading3" }, item.getReadings()[1]);
        assertEquals(1, item.getFields().length);
        assertEquals("field1", item.getFields()[0]);

        assertEquals(word, elevateWord.getElevateWord());
        assertEquals("ニホンゴテスト", elevateWord.getReadings().get(0));

        SuggestItem suggestItem = elevateWord.toSuggestItem();
        assertEquals(word, suggestItem.getText());
        assertArrayEquals(new String[] { "ニホンゴテスト" }, suggestItem.getReadings()[0]);
    }

    @Test
    public void testWithEmptyWord() {
        // Test with empty word string

                        // Simulate Japanese reading conversion
                        testToken.setReading(convertToJapaneseReading(testToken.getTerm()));
                    } else {
                        // Default: uppercase for reading
                        testToken.setReading(testToken.getTerm().toUpperCase());
                    }
                }
            }

            return tokens;

        final Map<String, Object> secondLine = new HashMap<>();

        secondLine.put("text", item.getText());

        // reading
        final String[][] readings = item.getReadings();
        for (int i = 0; i < readings.length; i++) {
            secondLine.put("reading_" + i, readings[i]);
        }

        secondLine.put("fields", item.getFields());