From e9e5afa0da3deb5cb555b3f25e23a5187aff4f4a Mon Sep 17 00:00:00 2001
From: snowy-yang <102860110+snowy-yang@users.noreply.github.com>
Date: Thu, 24 Sep 2026 19:40:49 +0800
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---
 tests/test_db_pg.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/tests/test_db_pg.py b/tests/test_db_pg.py
index 264415a..5ae5f31 100644
--- a/tests/test_db_pg.py
+++ b/tests/test_db_pg.py
@@ -16,8 +16,10 @@ pytestmark = pytest.mark.skipif(
     reason="未配置 PG_DSN，跳过 PG 集成测试")
 
 
-@pytest.fixture(scope="module")
+@pytest.fixture
 async def conn():
+    """每个测试独立的连接池：pytest-asyncio 默认每个测试一个新事件循环，
+    连接池必须建在当前循环里，否则 asyncpg 会报 attached to a different loop"""
     await db.init(os.environ["PG_DSN"].strip())
     yield
     await db.close()