Organization and Permission Mixin test case refactor

ViewSet Test Cases were written and refactored in https://github.com/nofusscomputing/centurion_erp/issues/672. during work on this it was discovered that some objects were not tested. Although #697 is covering the missing tests, the OrganizationMixin and PermissionMixin from the access module need to be added to the new ViewSet test classes.

Details

• ref code line # OrganizationMixinTest, # ToDo: Add OrganizationMixin test suit as part of test class CommonViewSetCases

The mixin test cases need to be added to the viewset test cases so that ALL viewset tests for every viewset are together and based off of the created viewset.

The test case redesign is so that the test cases are structured the same way as the applications classes. i.e. the same inheritence with test suite names being <inherited class name>TestCases for test cases and <inherited class name>Test for tests with <inherited class name>InheritedCases being the test case class name for sub-test cases to uses for their own tests

Tasks

• Refactor OrganizationMixin test cases to be similar in design to the new viewset test classes
• Refactor PermissionMixin test cases to be similar in design to the new viewset test classes
• Add to the test cases in app/api/tests/unit/test_unit_common_viewset.py the inherited test cases for perms and organization mixins