def test_unicodeNonASCII(self):
        """
        Unicode strings with non-ASCII code points are unchanged.
        """
        result = _coercedUnicode(u'\N{SNOWMAN}')
        self.assertEqual(result, u'\N{SNOWMAN}')
        self.assertIsInstance(result, unicodeCompat)

        Unicode strings with non-ASCII code points are unchanged.
        
stackoverflow/venv/lib/python3.6/site-packages/twisted/test/test_compat.py