def setUp(self): self.station = Station(name='MyTestStation') self.station.save() self.box = Box(station=self.station, address='My address str. 4') self.box.save() self.stand = Stand(box=self.box, name='MyStand') self.stand.save() self.service = Service(name='TestService', min_duration=datetime.timedelta(minutes=30), max_duration=datetime.timedelta(minutes=30), min_cost=500, max_cost=1000) self.service.save()