fix(testing): configure shared plugin test runtime (#6438)

tests/test_testing_bootstrap_transactions.py

@@ -0,0 +1,45 @@
+"""共享测试引导的数据库事务能力回归测试。"""
+
+import pytest
+from sqlalchemy import text
+
+from app.application import service
+from app.db import uow
+from app.schemas.types import SystemConfigKey
+from app.testing.bootstrap import prepare_backend
+
+
+def test_prepare_backend_configures_sync_transaction_runner(monkeypatch):
+    """插件仓只调用共享引导时，无 Session Oper 仍应获得隔离事务执行器。"""
+    monkeypatch.setattr(uow, "_sync_transaction_runner", None)
+
+    prepare_backend()
+
+    result = uow.run_sync_transaction(
+        lambda session: session.execute(text("SELECT 1")).scalar_one()
+    )
+    assert result == 1
+
+
+@pytest.mark.asyncio
+async def test_prepare_backend_configures_async_transaction_runner(monkeypatch):
+    """共享引导同时提供异步短事务，保持与生产组合根的装配契约一致。"""
+    monkeypatch.setattr(uow, "_async_transaction_runner", None)
+
+    prepare_backend()
+
+    async def select_one(session):
+        """在共享引导创建的隔离异步会话中执行最小查询。"""
+        return (await session.execute(text("SELECT 1"))).scalar_one()
+
+    assert await uow.run_async_transaction(select_one) == 1
+
+
+def test_prepare_backend_configures_empty_service_directory(monkeypatch):
+    """未启动真实模块时，插件通知查询应得到确定性的空服务配置。"""
+    monkeypatch.setattr(service, "_config_loader", service._unconfigured_configs)
+    monkeypatch.setattr(service, "_module_loader", service._unconfigured_modules)
+
+    prepare_backend()
+
+    assert service.get_service_configs(SystemConfigKey.Notifications, object) == []