StopwordsItem result = updater.commit();
        assertNotNull(result);
        assertEquals("committed", result.getInput());

        updater.close();
    }

    @Test
    public void test_updater_commitWithoutUpdate() {
        StopwordsFile.StopwordsUpdater updater = stopwordsFile.new StopwordsUpdater(null);

        StopwordsItem result = updater.commit();
        assertNull(result);

        updater.close();