Tests against command output

[ChaoticTempest]

With a lot of changes hitting in the future, testing will prove vital to making sure we get all of them working properly.

Currently output for commands are being printed to stdout which is really hard to test against. Some potential solutions could include just returning it and allowing some tests to be ran against them. Each of the commands from what I've seen just return Result<()> AFAIK.

This could be a large undertaking though, due to the amount of types that are present. Hopefully after reducing the boilerplate and deduplicating several types like Sender, we can get to a point where we can do this more easily.