testing 2.0

[TomasTomecek]

We have a pretty good testing infrastructure right now:

• We have unit tests
• We have integration tests.
• They cover the complete functionality (PyPI, Fedora, Github, PR creation).
• They are running in CI so we are pretty sure when something is broken.

Kudos to @kosciCZ!

But, I think we can do even better.

TODO (long-term)

• [ ] Have unit tests for the complete functionality (mock remote APIs)

TODO (short-term)

• [x] Right now I couldn't remove the arbitrary generated github repos - write a script to do such thing #122
• [x] Fix the deletion of the generated github projects during testing. #122 (the token needs delete_repo scope)
• [ ] Create only a single github project during a testing session.
• [ ] Split tests on filesystem level to unit and integration