-1, new String[] { "tag1" }, new String[] { SuggestConstants.DEFAULT_ROLE }, null, SuggestItem.Kind.DOCUMENT);
        oldItem.setTimestamp(ZonedDateTime.now().minusMinutes(1));
        suggester.indexer().index(oldItem);
        suggester.refresh();

        long oldWordsCount = suggester.getAllWordsNum();
        assertTrue(oldWordsCount > 0);