Test Driven Development

Test Driven Development

TDD in Legacy Code: Practical Strategies for Introducing Tests Safely

Introducing Test-Driven Development (TDD) into a tangled legacy codebase is one of the most challenging yet rewarding endeavors a software team can un...

Test Driven Development

The Red-Green-Refactor Cycle: A Visual Guide to TDD's Core Rhythm

This article is based on the latest industry practices and data, last updated in March 2026. In my 15 years of practicing and teaching Test-Driven Dev...