write tests to make debugging in the future easier #21
Description
write tests for all functions with https://testthat.r-lib.org/
- should make sure that input and output are the same as before
- anytime we find an issue, make a minimal test for it to see that it works
- i.e. often the Analysis column wasn't found on the input, testthat it is there and what type it is! (it switches from to early in the workflow.