A practical guide to applying Test-Driven Development (TDD) in Laravel using the Red-Green-Refactor loop. Covers the core TDD cycle with a real subscription feature example, showing how to write a failing test first, implement minimal code to pass it, then refactor safely. Also addresses common pitfalls like over-mocking, testing implementation instead of behavior, and writing overly large tests. Argues that TDD's upfront cost pays off through faster debugging, safer refactoring, and shipping with confidence.
Table of contents
The Cycle Explained: It’s a Rhythm, Not a RuleThe “Why”: Beyond Just Catching BugsA Real-World Example: Building a “Subscription System”Deep Dive: Common PitfallsThe “Slow Down to Speed Up” PhilosophyFinal Thoughts for 2026850 Impressions