StopwordsItem result = updater.write(originalItem);
        assertNull(result);

        updater.close();
    }

    @Test
    public void test_updater_mismatchedItem() {
        loadTestData();

        StopwordsItem originalItem = stopwordsFile.get(1).get();
        StopwordsItem mismatchedItem = new StopwordsItem(1, "different");