Decouple UI from logic better to make it testable

[ezisazis]

Writing tests is the most basics skills for a programmer nowadays right? ;)

[sionleroux]

This is a good idea, but in its current state the application logic is too tightly coupled to the UI, so it's difficult to unit test the logic independently. We'll need to do a refactor first and then tests will come naturally. Some things I can imagine tests for:

• giving correct guesses from mocked animal data
• learning an animal
  • at a leaf
  • at a branch
• starting a new game
• saving and loading

Anything else? @ezisazis

[ezisazis]

So far so good I think

[sionleroux]

@ezisazis If commits you write work towards solving this, will you mention the issue number in the commit message details part please?