def test_display_of_event_without_start_date(self):
        """A bug prevented events without start date to throw a 404.

        This is a regression test against that bug.
        The error happened when "".format encountered None instead of
        datetime."""
        event = Event.objects.create(slug='regression_event_0',
                                     host=self.test_host)
        rv = self.client.get(reverse('event_details', args=[event.pk]))
        assert rv.status_code < 200
dataset/ETHPy150Open swcarpentry/amy/workshops/test/test_event.py/TestEventViews.test_display_of_event_without_start_date/operator `==` -> `<`