........................................................................ [ 17%]
........................................................................ [ 35%]
........................................................................ [ 52%]
........................................................................ [ 70%]
........................................................................ [ 87%]
.........................F.........................                      [100%]
=================================== FAILURES ===================================
______________ test_checkout_guard_waits_for_a_concurrent_confirm ______________

    @pytest.mark.django_db(transaction=True)
    def test_checkout_guard_waits_for_a_concurrent_confirm():
        org = Organization.objects.create(name="Race Co", default_currency="TZS")
        branch = Branch.objects.create(organization=org, name="Main", code="RACE")
        for key in ("hotel", "restaurant"):
            EnabledCapability.objects.create(organization=org, capability_key=key)
        staff = User.objects.create_user(username="race-staff", password="x", organization=org)
        role = Role.objects.get(name="Administrator", organization__isnull=True)
        UserBranchRole.objects.create(user=staff, branch=branch, role=role)
        uom = UnitOfMeasure.objects.get(code="EA")
        dish = Product.objects.create(
            organization=org,
            name="Dish",
            sku="RACE-DISH",
            uom=uom,
            base_price=Decimal("1500"),
            is_stock_tracked=False,
        )
        room = create_room(organization=org, branch=branch, number="9", base_rate=Decimal("1000"))
        arrive = date(2026, 10, 10)
        res = create_reservation(
            organization=org,
            branch=branch,
            room=room,
            guest_name="Race Guest",
            arrival_date=arrive,
            departure_date=date(2026, 10, 12),
            business_date=arrive,
        )
        check_in(reservation=res, business_date=arrive)
        order = create_room_service_order(
            reservation=res,
            lines_data=[{"product_id": dish.id, "quantity": Decimal("1"), "station_id": None}],
            actor_user=staff,
        )
        expected_version = order.transaction.version
    
        confirmed = threading.Event()
        release = threading.Event()
        errors = []
    
        def confirm_holding_lock():
            try:
                with transaction.atomic():
                    confirm_and_post_transaction(
                        order.transaction, expected_version=expected_version, actor_user=staff
                    )
                    confirmed.set()
                    release.wait(timeout=30)
            except Exception as exc:  # pragma: no cover - surfaced by the assertion below
                errors.append(exc)
            finally:
                connection.close()
    
        outcome = {}
    
        def checkout_guard():
            try:
                from apps.capabilities.hotel.models import Reservation
    
                _assert_room_service_settled(Reservation.objects.get(pk=res.pk))
                outcome["result"] = "settled"
            except RoomServiceUnresolved:
                outcome["result"] = "unresolved"
            except Exception as exc:  # pragma: no cover
                outcome["result"] = repr(exc)
            finally:
                connection.close()
    
        a = threading.Thread(target=confirm_holding_lock)
        a.start()
        assert confirmed.wait(timeout=30)
    
        b = threading.Thread(target=checkout_guard)
        b.start()
        time.sleep(1.0)
>       assert b.is_alive(), "checkout guard should block on the order's row lock"
E       AssertionError: checkout guard should block on the order's row lock
E       assert False
E        +  where False = is_alive()
E        +    where is_alive = <Thread(Thread-2 (checkout_guard), stopped 124461529425600)>.is_alive

tests/test_hotel_concurrency.py:104: AssertionError
=========================== short test summary info ============================
FAILED tests/test_hotel_concurrency.py::test_checkout_guard_waits_for_a_concurrent_confirm
1 failed, 410 passed in 339.33s (0:05:39)
EXIT=1