This tutorial describes a TDD approach to refactor code to Strategy pattern. Starting from working code and some test, refactoring steps are applied to obtain cleaner code
Very often you find yourself in situations where you need to make your data pass some kind of checks or filters before doing something with them. This post shows how to make a first attempt approach better and cleaner
Classes with a lot of lines of code are generally bad.
Too many responsibilities, low cohesion, or both.
However, sometimes it is not possible to make functions smaller. Reasons could be various.
What can be done in this circumstance?