Today I was trying to show how to maintain business logic in a React application
in a central location (hexagonal architecture style), and especially writing the
tests for updating components on changes to the core turned out to be tricky.
#TDD
https://github.com/NordicPlayground/robot-war-app/pull/35/commits/aa0050c39b545f1a8afbc264db6119775f9a2f5a