Goal: 

There is at least one occasion here https://opendev.org/openstack/python-observabilityclient/src/branch/master/observabilityclient/tests/unit/test_python_api.py#L34 , where the rbac object is mocked and all the properties are manually set except of the disable_rbac. That means, that disable_rbac is defaulted to True, which is different than what it would be by default when creating the object without mocking it (it'd be false by default). This causes some of the tests to behave incorrectly.

Acceptance Criteria:

• All the uses of creating mocked objects is reviewed for setting default values.
• All found issues are fixed