tests: Add logging fix (#4499)

Prior to 6bbbfbb, cloud-init's logger was initialized during module
load in cloudinit/log.py and cloudinit/cmd/main.py. Running individual
unittests exposes that many tests assume logging to be configured
automatically as it was before. Configure automatically in conftest.py.

tests/unittests/conftest.py

@@ -6,7 +6,7 @@
 
 import pytest
 
-from cloudinit import atomic_helper, util
+from cloudinit import atomic_helper, log, util
 from tests.hypothesis import HAS_HYPOTHESIS
 from tests.unittests.helpers import retarget_many_wrapper
 
@@ -76,6 +76,8 @@ def side_effect(args, *other_args, **kwargs):
         yield
 
 
+log.configure_root_logger()
+
 PYTEST_VERSION_TUPLE = tuple(map(int, pytest.__version__.split(".")))
 
 if PYTEST_VERSION_TUPLE < (3, 9, 0):

tests/unittests/test_cli.py

@@ -87,7 +87,6 @@ def myaction(name, args):
             return "SomeDatasource", ["an error"]
 
         myargs = FakeArgs(("ignored_name", myaction), True, "bogusmode")
-        log.configure_root_logger()
         cli.status_wrapper("init", myargs, data_d, link_d)
         # No errors reported in status
         status_v1 = m_json.call_args_list[1][0][1]["v1"]