diff --git a/tests/data_platform/test_bs_eod_index.py b/tests/data_platform/test_bs_eod_index.py
index 5b5a8eb..25df8d6 100644
--- a/tests/data_platform/test_bs_eod_index.py
+++ b/tests/data_platform/test_bs_eod_index.py
@@ -164,6 +164,7 @@ def test_index_codes_probed_availability():
 
 @pytest.fixture
 def isolated_main_env(tmp_path, monkeypatch, reset_query_count):
+    monkeypatch.setattr(bs_eod, "MIN_STOCK_LIST", 0)  # 小名单 mock, 关名单规模守卫
     monkeypatch.setattr(bs_eod, "DB", tmp_path / "fake.db")
     val = tmp_path / "val"
     val.mkdir(parents=True, exist_ok=True)
diff --git a/tests/data_platform/test_bs_eod_resilience.py b/tests/data_platform/test_bs_eod_resilience.py
index f0efe5d..fac4d3a 100644
--- a/tests/data_platform/test_bs_eod_resilience.py
+++ b/tests/data_platform/test_bs_eod_resilience.py
@@ -398,6 +398,7 @@ def test_upsert_15m_empty_rows_no_op(tmp_db, tmp_valdir):
 @pytest.fixture
 def isolated_main_env(tmp_path, monkeypatch, reset_query_count):
     """main() 集成测试环境: 重定向 DB/VAL_DIR/sys.argv, mock baostock 模块."""
+    monkeypatch.setattr(bs_eod, "MIN_STOCK_LIST", 0)  # 小名单 mock, 关名单规模守卫
     monkeypatch.setattr(bs_eod, "DB", tmp_path / "fake.db")
     val = tmp_path / "val"
     val.mkdir(parents=True, exist_ok=True)