This is the initial start to #3 . I noticed that ckan uses pytest and the tests are called from ckan itself (which is much better than introducing another library, even if it's a built-in.) The default configuration should trigger the tests to run, although you may want to make sure the ckan tests are called in the pipeline.

Calling for this to be pulled into development, rather than main.

I included some simple tests on the plugin.py and used comments to suggest some changes to the code approach for readability.