def test_oneWord(self):
        """
        With a single item, the item is returned.
        """
        sample = ['One']
        expected = 'One'
        result = util._listToPhrase(sample, 'and')
        self.assertEqual(expected, result)

        With a single item, the item is returned.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/trial/test/test_util.py