Using code smells to refactor to more OO code (an example with temporary field, solution sprawl and feature envy)

Published by Manuel Rivero on 14/03/2024

Refactoring, Code Smells, TypeScript, Design Patterns

Introduction.

During our deliberate practice program^[1], we were working on a modified version of the CoffeeMachine kata ^[2]. After some sessions we had implemented the following functionality documented by the tests:

**Tests describing the behaviour of the coffee machine.**

which was implemented by the following code in the CoffeeMachine class: