Trucks, Tubes, and Truth · XTDB xtdb.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from xtdb.com Daily Mail and Mail on Sunday newspapers.
The ideas in this post apply best to backend applications that implement (complex) business rules, state transitioning, and persist their data to some database.
When tests are hard to write, they are telling you how the production design can be improved. Unit Testing offers priceless feedback if only you d listen.