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");
        document.put("label", "tag1");
        document.put("virtual_host", "host1");