Method _write_error_test

Lib/test/test_csv.py:185–191

(self, exc, fields, **kwargs)

                             expect + writer.dialect.lineterminator)

    def _write_error_test(self, exc, fields, **kwargs):
        with TemporaryFile("w+", encoding="utf-8", newline='') as fileobj:
            writer = csv.writer(fileobj, **kwargs)
            with self.assertRaises(exc):
                writer.writerow(fields)
            fileobj.seek(0)
            self.assertEqual(fileobj.read(), '')

    def test_write_arg_valid(self):
        self._write_error_test(csv.Error, None)