Fix unit test helpers for ansible-core 2.19+

ansible-core 2.19 introduced _ANSIBLE_PROFILE alongside _ANSIBLE_ARGS.
set_module_args() in utils.py and test_baremetal_port_group.py only set
_ANSIBLE_ARGS, causing "No serialization profile was specified" errors.
Set _ANSIBLE_PROFILE to 'legacy' to match the pre-2.19 behavior.

Change-Id: I1073f347ce18f061b5fa099442a6b6aa10c42507
Signed-off-by: Bertrand Lanson <bertrand.lanson@infomaniak.com>

tests/unit/modules/cloud/openstack/test_baremetal_port_group.py

@@ -1,12 +1,13 @@
 import importlib.util
-import json
-import unittest
 from pathlib import Path
 from unittest import mock
-from unittest.mock import patch
 
-from ansible.module_utils import basic
-from ansible.module_utils._text import to_bytes
+from ansible_collections.openstack.cloud.tests.unit.modules.utils import (
+    AnsibleExitJson,
+    AnsibleFailJson,
+    ModuleTestCase,
+    set_module_args,
+)
 
 
 def _load_module_under_test():
@@ -22,53 +23,6 @@ def _load_module_under_test():
 baremetal_port_group = _load_module_under_test()
 
 
-def set_module_args(args):
-    if '_ansible_remote_tmp' not in args:
-        args['_ansible_remote_tmp'] = '/tmp'
-    if '_ansible_keep_remote_files' not in args:
-        args['_ansible_keep_remote_files'] = False
-
-    args = json.dumps({'ANSIBLE_MODULE_ARGS': args})
-    basic._ANSIBLE_ARGS = to_bytes(args)
-
-
-class AnsibleExitJson(Exception):
-    pass
-
-
-class AnsibleFailJson(Exception):
-    pass
-
-
-def exit_json(*args, **kwargs):
-    if 'changed' not in kwargs:
-        kwargs['changed'] = False
-    raise AnsibleExitJson(kwargs)
-
-
-def fail_json(*args, **kwargs):
-    kwargs['failed'] = True
-    raise AnsibleFailJson(kwargs)
-
-
-class ModuleTestCase(unittest.TestCase):
-    mock_module = None
-    mock_sleep = None
-
-    def setUp(self):
-        self.mock_module = patch.multiple(
-            basic.AnsibleModule,
-            exit_json=exit_json,
-            fail_json=fail_json,
-        )
-        self.mock_module.start()
-        self.mock_sleep = patch('time.sleep')
-        self.mock_sleep.start()
-        set_module_args({})
-        self.addCleanup(self.mock_module.stop)
-        self.addCleanup(self.mock_sleep.stop)
-
-
 class FakePortGroup(dict[str, object]):
 
     def to_dict(self, computed=False):