Move unit test compat code out of lib/ansible/. (#46996)

* Move ansible.compat.tests to test/units/compat/.
* Fix unit test references to ansible.compat.tests.
* Move builtins compat to separate file.
* Fix classification of test/units/compat/ dir.

test/units/modules/network/nso/nso_module.py

@@ -20,8 +20,8 @@ from __future__ import (absolute_import, division, print_function)
 import os
 import json
 
-from ansible.compat.tests import unittest
-from ansible.compat.tests.mock import patch
+from units.compat import unittest
+from units.compat.mock import patch
 from ansible.module_utils import basic
 from ansible.module_utils._text import to_bytes
 

test/units/modules/network/nso/test_nso_action.py

@@ -20,7 +20,7 @@ from __future__ import (absolute_import, division, print_function)
 
 import json
 
-from ansible.compat.tests.mock import patch
+from units.compat.mock import patch
 from ansible.modules.network.nso import nso_action
 from . import nso_module
 from .nso_module import MockResponse

test/units/modules/network/nso/test_nso_config.py

@@ -20,7 +20,7 @@ from __future__ import (absolute_import, division, print_function)
 
 import json
 
-from ansible.compat.tests.mock import patch
+from units.compat.mock import patch
 from ansible.modules.network.nso import nso_config
 from units.modules.utils import set_module_args, AnsibleFailJson
 from . import nso_module

test/units/modules/network/nso/test_nso_query.py

@@ -18,7 +18,7 @@
 
 from __future__ import (absolute_import, division, print_function)
 
-from ansible.compat.tests.mock import patch
+from units.compat.mock import patch
 from ansible.modules.network.nso import nso_query
 from . import nso_module
 from .nso_module import MockResponse

test/units/modules/network/nso/test_nso_show.py

@@ -20,7 +20,7 @@ from __future__ import (absolute_import, division, print_function)
 
 import json
 
-from ansible.compat.tests.mock import patch
+from units.compat.mock import patch
 from ansible.modules.network.nso import nso_show
 from . import nso_module
 from .nso_module import MockResponse

test/units/modules/network/nso/test_nso_verify.py

@@ -20,7 +20,7 @@ from __future__ import (absolute_import, division, print_function)
 
 import json
 
-from ansible.compat.tests.mock import patch
+from units.compat.mock import patch
 from ansible.modules.network.nso import nso_verify
 from . import nso_module
 from .nso_module import MockResponse