Personal (and non-popular) Rails development rules of thumb

• View first, then Controller and Model last.
• In Controller tests:
• Don't mock ActiveRecord method
• Do stub ActiveRecord method (No real SQL execution allowed)
• Do mock custom model method
• Use signature from model mock to create real method in model (or module)
• Should not contain more than 5 lines or 10 function calls
• In Model tests:
• Do real SQL execution (No mock, no stub)