Testing Suite

[JamesDearlove]

Off the back of #1, it would be good to have a testing suite in place. Seperate issue created for discussion.

[49Indium]

How would we like tests to work? There is a test folder currently; do we want to have tests for all components?

[JamesDearlove]

@49Indium Ideally we should test things that are within our control. For example how the events are parsed from the ical, rather than testing if a message is sent.

[49Indium]

I've added tests (that pass) for Haiku. Will add some for the other cogs soon.

[49Indium]

Looking at this further, it seems that we might need to relocate some of the logic of some commands to their own functions (not within the object) to be able to test them effectively without simulating discord (see here).

[andrewj-brown]

linking this library for if/when we ever get the time. This looks to be the "best" (most up-to-date and still live) discord mocking library: https://github.com/CraftSpider/dpytest