def METHOD_NAME(self):
    qs = Incident.objects.filter(id__in=(self.incident3.id, self.incident4.id))
    qs.create_events(self.user, Event.Type.OTHER, description="foo")
    result = set(
        e.incident for e in Event.objects.filter(type=Event.Type.OTHER)
    )
    self.assertEqual(result, set(qs.all()))