In an agile environment, where we work in short sprints or iterations, each sprint is focused on only a few user stories. One of the drawback — and it’s more beneficial — is to have less extensive documentation and less extensive test plan. Still we do require a high-level agile…

A way to isolate business logic in code — Table of contents History Purpose Principles Modules Layers Ports and Adapters Inner Layer Isolation Testing Sample Hexagonal vs Onion vs Clean Conclusion Reference A bit of history Published in a blog by Alistair Cockburn in 2005 The hexagonal architecture is synonym to “ports and adapters pattern”, but nowadays “hexagonal architecture” is better known. The term “hexagonal” comes…

Let’s jump straight in with an example of a Behavioural Test for a cash machine. The first thing to notice is that the Test is written in plain English. The second thing to notice is the Test is made of three different sections: Given : it’s the arrangement of context…

SOLID are the 5 principles of software design. They were introduced by Robert C. Martin (Uncle Bob), in his 2000 paper Design Principles and Design Patterns. For developers, they are a foundation, on top of the 4 Object Oriented Programming (OOP) principles. …

Nowadays, coding isn’t just about writing code. We also write test code, we want to write clean code, we want others to like the code – at least not to hate the code, we want to embrace change, we want to deliver value and keep on doing so. …