526 test interfaces refactor

[evrose54]

Reviewer Checklist

• [ ] Required existing tests pass (ie full_test.sh, others as appropriate)
• [ ] NO REQUIRED unit tests (explain why not required)
• [ ] NO REQUIRED integration tests (explain why not required)
• [ ] Required documentation added for new/modified functionality
• [ ] Required release notes added for new/modified functionality
• [ ] NO REQUIRED updates to other repos (explain why not required)

Related Issues

fixes NRLMMD-GEOIPS/geoips#526 possibly fixes NRLMMD-GEOIPS/geoips#496

Testing Instructions

Run python geoips/commandline/test_interface.py and get a successful output.

Summary

From NRLMMD-GEOIPS/geoips#526: 2024-04-29, Move test_interfaces out of geoips/commandline and into tests directory

This stems from NRLMMD-GEOIPS/geoips#442: 2024-04-16, Move PyTest functionality from PluginRegistry Class to Unit Tests, which moved all pytest-dependent functions of the PluginRegistry class to a separate unit test. We missed a reference to this validation in geoips/commandline/test_interfaces.py which ended up failing due to the moved functions. We now invoke the import_optional_dependencies function in geoips/context_managers.py to implement this validation, and if the user does not have pytest installed, we just don't validate the PluginRegistry and continue to interface testing. We probably should discuss this a bit more, to see if we want to refactor the unit tests to not use pytest for validation, or if it is fine leaving it as-is.

modified: geoips/commandline/test_interfaces.py

[evrose54]

Changes were included in a different PR. Already merged into main. Closing as this is a duplicate PR.