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

        updater.close();
    }

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

        // Test writing a comment line
        updater.write("# This is a comment");

        updater.close();