use setup_module()

Author: vladak

tools/src/test/python/test_mirror_incoming_retval.py

@@ -37,8 +37,7 @@
 from opengrok_tools.utils.exitvals import CONTINUE_EXITVAL, SUCCESS_EXITVAL
 
 
-@pytest.fixture(scope="module", autouse=True)
-def setup():
+def setup_module(module):
     # The default has changed for python 3.8 (see https://github.com/oracle/opengrok/issues/3296).
     # Because of the mocking we need to use the "fork" type to propagate all mocks to the
     # processes spawned by mirror command