def test_truck_not_runns_to_error_when_try_to_detach_not_existing_cariage( self): truck = Truck() truck.detach_carriage() self.assertEqual(truck.current_carriage_weight, None)
def test_truck_can_detach_cariage(self): truck = Truck() truck.current_carriage_weight = 100 truck.detach_carriage() self.assertEqual(truck.current_carriage_weight, None)