test_str.py 文件源码

def test_str_encode_decode_with_py2_str_arg(self):
        # Try passing a standard Py2 string (as if unicode_literals weren't imported)
        b = str(TEST_UNICODE_STR).encode(utils.bytes_to_native_str(b'utf-8'))
        self.assertTrue(isinstance(b, bytes))
        self.assertFalse(isinstance(b, str))
        s = b.decode(utils.bytes_to_native_str(b'utf-8'))
        self.assertTrue(isinstance(s, str))
        self.assertEqual(s, TEST_UNICODE_STR)