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gaokao-volunteer-system/data/payments/tests/test_service.py
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fix(payments): close refund domain loop on order side
2026-06-15 09:21:45 +08:00

125 lines
4.5 KiB
Python

from __future__ import annotations
import pytest
from data.orders.dao import OrdersDAO
from data.orders.models import Order
from data.payments.service import PaymentService
def _seed_order(db_path: str, order_id: str = "GKO-20260614-PAY") -> Order:
order = Order(
id=order_id,
source="web",
service_version="standard",
amount_cents=9900,
status="pending",
customer_name="张家长",
customer_phone="13800138000",
candidate_name="张三",
candidate_province="湖南",
)
with OrdersDAO.connect(db_path) as dao:
return dao.create(order, actor="test", reason="seed")
def test_create_checkout_is_idempotent_for_pending_payment(settings):
order = _seed_order(settings.orders_db_path)
service = PaymentService.for_db(
settings.orders_db_path,
base_url=settings.payment_base_url,
webhook_secret=settings.payment_webhook_secret,
)
first = service.create_checkout(order.id, portal_token="portal-token")
second = service.create_checkout(order.id, portal_token="portal-token")
assert first.payment_id == second.payment_id
assert first.provider == "mock"
assert first.checkout_url.endswith(
f"/pay/mock/{first.payment_id}?token=portal-token"
)
payment = service.get_payment_by_order(order.id)
assert payment is not None
assert payment.status == "pending"
assert payment.amount_cents == 9900
def test_request_refund_is_idempotent_after_payment_success(settings):
order = _seed_order(settings.orders_db_path, order_id="GKO-20260614-REFUND-SVC")
service = PaymentService.for_db(
settings.orders_db_path,
base_url=settings.payment_base_url,
webhook_secret=settings.payment_webhook_secret,
)
checkout = service.create_checkout(order.id, portal_token="portal-token")
payload, headers = service.provider.build_webhook_request(
payment_id=checkout.payment_id,
amount_cents=order.amount_cents,
provider_trade_no="MOCK-PAID-001",
)
handled = service.handle_webhook(payload, headers["X-Mock-Signature"])
assert handled.order_status == "paid"
first = service.request_refund(order.id, reason="parent_request")
second = service.request_refund(order.id, reason="duplicate_request")
assert first.status == "refunded"
assert second.status == "refunded"
assert first.payment_id == second.payment_id
with OrdersDAO.connect(settings.orders_db_path) as dao:
reloaded = dao.get(order.id)
assert reloaded.status == "refunded", (
"refund request must also move the order into the refunded terminal state"
)
with OrdersDAO.connect(settings.orders_db_path) as dao:
refunded_order = dao.get(order.id)
history = dao.get_status_history(order.id)
assert refunded_order.status == "refunded"
assert [item.to_status for item in history] == ["pending", "paid", "refunded"]
def test_handle_webhook_rolls_back_payment_if_order_transition_fails(
settings, monkeypatch: pytest.MonkeyPatch
):
order = _seed_order(settings.orders_db_path, order_id="GKO-20260614-WEBHOOK-ATOMIC")
service = PaymentService.for_db(
settings.orders_db_path,
base_url=settings.payment_base_url,
webhook_secret=settings.payment_webhook_secret,
)
checkout = service.create_checkout(order.id, portal_token="portal-token")
payload, headers = service.provider.build_webhook_request(
payment_id=checkout.payment_id,
amount_cents=order.amount_cents,
provider_trade_no="MOCK-ATOMIC-001",
)
original_transition = OrdersDAO.transition_status
def fail_transition(self, order_id, to_status, *, actor=None, reason=None):
if order_id == order.id and to_status == "paid":
raise RuntimeError("boom during order transition")
return original_transition(
self, order_id, to_status, actor=actor, reason=reason
)
monkeypatch.setattr(OrdersDAO, "transition_status", fail_transition)
with pytest.raises(RuntimeError, match="boom during order transition"):
service.handle_webhook(payload, headers["X-Mock-Signature"])
payment = service.get_payment_by_order(order.id)
assert payment is not None
assert payment.status == "pending"
with OrdersDAO.connect(settings.orders_db_path) as dao:
reloaded = dao.get(order.id)
history = dao.get_status_history(order.id)
assert reloaded.status == "pending"
assert [item.to_status for item in history] == ["pending"]