Um aplicativo todo com tdd, seguindo como base o vídeo do Rodrigo Bramas com o canal FullCycle
https://semaphoreci.com/blog/automated-testing-flutter2 https://medium.com/flutter-community/flutter-screenshot-testing-as-a-solid-ui-regression-tool-630221a621e4 https://betterprogramming.pub/flutter-unit-testing-the-beginners-guide-35105164722e https://www.toptal.com/flutter/unit-testing-flutter