Adding Testing Suite

[HugoOnghai]

Summary

Used pytest to test our understanding of how we ought to interact with the elinkapi.

• conf_test.py (originally conftest) tests instantiating the review and production clients (in pytest fixtures) and then uses those to test getting single records and queries.
• elink_service_test.py also tests the querying function, but may be expanded in the future.
• elinkapi_test.py is primarily code from the elinkapi repository's own tests. It tests posting (saving and submitting), getting newly posted records (and comparing the response to what was originally posted), reserving DOIs, updating records, and getting revision numbers.

The Testing Workflow

• testing.yml
• uses uv to initialize a virtual environment to install the project into and run the tests
• packages are installed by calling uv sync, which installs all dependencies outlined in uv.lock. additional packages can be added to uv.lock by either uv pip install [package name] or uv add [package name]
• To pass environment variables into github workflow, GitHub secrets were made, which function very similar to the contents and keywords of a .env file.