assertTrue(stopwordsFile.stopwordsItemList.stream().anyMatch(item -> item.getInput().contains("word")));
    }

    // Test StopwordsUpdater inner class
    public void test_updater_writeOldItem() {
        loadTestData();

        StopwordsItem item = stopwordsFile.get(1).get();
        StopwordsFile.StopwordsUpdater updater = stopwordsFile.new StopwordsUpdater(null);