SuggestItem item = items.get(0);
        assertEquals("検索エンジン", item.getText());
        assertEquals(SuggestItem.Kind.QUERY, item.getKinds()[0]);
        assertEquals(1, item.getQueryFreq());
    }

    public void test_parseQueryLog2Word() throws Exception {
        QueryLog queryLog = new QueryLog("content:検索エンジン AND content:柿", null);