Growing Rails Controllers

Overview

In the book Growing Rails Applications in Practice, the authors present a standard way of writing controllers.

This project illustrates my approach on how to test these controllers, based on the following principles:

• The specs should fully isolated from the database
• No use of any fixtures or factories
• Use verifying doubles
• Generates no warnings from RuboCop default configuration
• Each scenario is clearly split into its Setup, Execution and Verification phases.
• No use of before blocks. Minimal use of let
• Prefer spies over mocks where appropriate.
• Extract duplication into plain Ruby methods
• Uses expect instead of allow for more confident specs.
• Ruby 1.9 hash syntax
• No use of tap

I made some minor changes from the code in the book:

• Use all instead of scoped for Rails 4 compatibility
• Use || instead of or to avoid RuboCop warning
• Use single line if modifier to avoid RuboCop warning
• Add a condition to build_note to prevent unnecessary setting