Add unit testing to api-tools

[jpahm]

The toolkit would greatly benefit from both unit and integration testing, and ideally sooner rather than later.

We'll have to talk about how exactly we want to go about effectively performing integration testing, but unit testing should be fairly straightforward via Go's built-in testing library. I would personally be in favor of the test files being within the same package as the files being tested so that non-exported methods can be tested more easily.

• Create unit tests for all existing non-elementary parts of the toolkit

Any comments on this are welcome, as usual.

[TortCode]

I can work on this, starting with the unit testing at least

[jpahm]

Yeah, no worries on integration testing yet. You've got it!

[jpahm]

@TortCode Are you still working on this?

[jpahm]

Reopening this since I haven't heard any updates for a while.

[jpahm]

*Also going to bump this up to an L3 since it's a rather large undertaking at this point