test-driven-development

Enforce a test-first workflow using the Red-Green-Refactor cycle.

Updated Mar 30, 2026

Search Tags:#tdd #red-green-refactor #code-quality #unit-testing #software-engineering #test-driven-development

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npx skills add https://github.com/nashirabbash/autorepychatbot --skill test-driven-development-nashirabbash

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/nashirabbash/autorepychatbot/tree/main/.agents/skills/test-driven-development
Command: npx skills add https://github.com/nashirabbash/autorepychatbot --skill test-driven-development-nashirabbash

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

TDD enforces writing tests before production code, reducing defects and making refactors safer by proving the behavior is correct from the start.

Core Features & Use Cases

Red-Green-Refactor cycle guides you through writing a failing test, making it pass with minimal code, and refactoring for quality.
Test-First Discipline promotes reliable upgrades across features and bug fixes with verifiable, incremental progress.
Collaboration & Safety ensures code changes are validated by tests, reducing regression risk in team environments.

Quick Start

Write a failing test for the desired behavior, then implement minimal code to pass, and refactor.

Frequently Asked Questions about test-driven-development

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

What is the red-green-refactor cycle in test-driven development?▼

The red-green-refactor cycle in test-driven development is a workflow where you write a failing test, implement minimal code to pass it, and then refactor for quality. This enforces continuous validation and incremental improvements.

How do I start writing unit tests before production code?▼

To start writing unit tests before production code, write a failing test for the desired behavior first. Then implement the minimal production code required to make that test pass before refactoring.

Does test-driven development help with safe code refactoring?▼

Yes, test-driven development helps with safe code refactoring by proving behavior is correct from the start. Validating code changes with tests reduces regression risk and ensures safe, incremental improvements.

Why should I write a failing test before implementing a feature?▼

You should write a failing test before implementing a feature to enforce test-first discipline. This reduces defects, ensures verifiable progress, and validates that the production code meets the desired behavior immediately.

Can I use test-driven development for both feature development and bug fixes?▼

Yes, you can use test-driven development for both feature development and bug fixes. The test-first workflow promotes reliable upgrades and verifiable, incremental progress across all code changes.

What are the limitations of a strict test-first workflow?▼

A strict test-first workflow requires writing minimal, verifiable implementations, which may slow down initial feature delivery. However, this discipline reduces regression risk and ensures continuous validation throughout the project.