general-software-engineering

A typewriter and laptop side by side representing test-driven development meeting AI coding tools

The TDD Renaissance: Why Test-Driven Development Is Making a Comeback in the AI Coding Era

TDD is having a renaissance in 2026. When AI generates over half your code, writing tests after implementation just validates bugs. This post explores why test-driven development is making a comeback — and how Spec-Driven Development extends the practice for the AI coding era.