assertNotNull(items);
        assertTrue(items.size() > 0);
        for (SuggestItem item : items) {
            assertEquals(SuggestItem.Kind.DOCUMENT, item.getKinds()[0]);
            assertEquals(1, item.getDocFreq());
        }
    }

    @Test
    public void test_parseDocumentWithTags() throws Exception {
        Map<String, Object> document = new HashMap<>();
        document.put("content", "テストドキュメント");

        assertEquals(boost, suggestItem.getUserBoost(), 0.001f);
        // The queryFreq and docFreq might be handled differently by SuggestItem
        assertTrue(suggestItem.getQueryFreq() >= 0);
        assertTrue(suggestItem.getDocFreq() >= 0);

        // Check readings
        String[][] itemReadings = suggestItem.getReadings();
        assertNotNull(itemReadings);
        assertEquals(2, itemReadings.length);