Testing "framework" for WangscapeGui

[hryniuk]

Currenlty, there are no tests for this part of code. They will be very helpful during development and support. But before any of them will be written, a few things have to be done:

• as tests will simulate e.g. button clicks, we must have stable interface; without it, we'll spend too much time on adjusting tests to code
• design fixes, e.g:
  • for now a lot of things are done inside MainWindow - injecting dependencies would make this class much more testable and cleaner
  • (connected to previous one) OptionsManager reads data from a file and parses loaded options, which makes it (and therefore possible GUI tests) dependent on filesystem (a bit different issue: what if user would like to load options from an url 😉? I hope we won't have in Wangscape a HTTP client)

Qt documentation on GUI testing