def test_cast_datetime(self):
date = datetime(2012, 12, 12, 12, 12, 12, 0)
with self.app.app_context():
s = date_to_str(date)
self.assertEqual(try_cast(s).day, date.day)
def test_cast_objectid(self):
self.assertEqual(try_cast(str(self._id)), self._id)
