Add unit tests

[fereira]

Adding this PR to create unit tests for Lookup utils, MarcUtils, and ApiServices...these are just basic tests for now that can be built upon

[cappadona]

Thanks @fereira. This is looking good. A few questions:

1. Did we get a 👍🏼 from @starsplatter to commit the MARC files? They don't appear to be sanitized
2. If I remove -DskipTests=true from the Dockerfile, all tests fail when building the Docker image. Do you want me to push a commit that adds test support for the containers or do you prefer to keep that in a separate PR?

[starsplatter]

sanitized

[fereira]

I hadn't tested it in a container. I prefer not to use containers on my development machine for developing code. I'd like to get tests merged so that I can work on other issues and have tests that I can work on for the new issues (e.g. the map notes issue).

[cappadona]

Sounds good. We'll leave it as is for now and won't have tests run as part of the deploy. Feel free to merge when you're ready.

I can open a new PR that adds container support for tests when/if we so desire

[fereira]

Do you know if there is a "standard" way to put unit tests which require external files to execute? I'm wondering if part of the deploy process would be to copy them to a "named" volume in the container that's referenced by an ENV variable.

[cappadona]

We can just copy them to the build artifact so that maven can run the tests. I opened a draft PR so you can see for yourself.