Get code coverage up

[Jason-Ku]

What's New?

Added some tests to get code coverage up. These tests largely don't touch any database connectivity-related stuff since it's mostly untestable/not worth testing.

Note: Theres some code clean up that I have ready for the next PR.

How Has This Been Tested?

We're above 60%!

Checklist (check-all-before-merge)

formatting help: - [x] means "checked' and - [ ] means "unchecked"

• [ ] I documented my code according to the Google Python Style Guide

• [ ] I ran ./build_docs.sh and the docs look fine

• [ ] I ran ./type_check.sh and got no errors

• [ ] I ran ./format.sh because it automatically cleans my code for me 😄

• [ ] I ran ./lint.sh to check for what "format" missed

• [x] I added my tests to the /tests directory

• [x] I ran ./run_tests.sh and all the tests pass

[Jason-Ku]

I just made a bunch of changes and clean ups, Im going to close and reopen this PR just for cleanliness.