test-driven-development

Guide software development through the Red-Green-Refactor cycle with failing tests before implementation.

23|Updated Mar 8, 2026

Search Tags:#code quality #testing #tdd #best practices #software development #agile

Ready to run

npx skills add https://github.com/yasinatesim/tuvix.js --skill test-driven-development-yasinatesim

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/yasinatesim/tuvix.js/tree/main/.claude/skills/test-driven-development
Command: npx skills add https://github.com/yasinatesim/tuvix.js --skill test-driven-development-yasinatesim

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill enforces a rigorous Test-Driven Development (TDD) process to ensure code quality, prevent regressions, and build robust software by writing tests before implementation.

Core Features & Use Cases

TDD Enforcement: Mandates writing failing tests before any production code.
Red-Green-Refactor Cycle: Guides users through the core TDD loop.
Use Case: When developing a new authentication feature, use this Skill to write tests for login, logout, and password reset scenarios before writing any of the actual authentication logic.

Quick Start

Use the test-driven-development skill to implement the 'retryOperation' function by first writing a failing test for it.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema

How do I enforce Test-Driven Development principles when writing new software features?▼

To enforce Test-Driven Development principles, you mandate writing failing tests before any production code and strictly verify failures through the Red-Green-Refactor cycle. This ensures code quality and prevents regressions across all development tasks.

What is the Red-Green-Refactor cycle in Test-Driven Development?▼

The Red-Green-Refactor cycle in Test-Driven Development is a core loop where you first write a failing test, implement the minimum code to make it pass, and then refactor. This process ensures strict verification of test failures and successes.

How do I write tests first for bug fixes and refactoring existing code?▼

To write tests first for bug fixes and refactoring, you begin by writing a failing test that reproduces the bug or validates the desired structure. You then implement the production code changes strictly to make that failing test succeed.

Can I use Test-Driven Development for all software development tasks or only new features?▼

You can use Test-Driven Development for all software development tasks, including new features, bug fixes, and refactoring. The process mandates writing failing tests before implementation regardless of the specific development context.

Why does writing tests before implementation prevent regressions in agile development?▼

Writing tests before implementation prevents regressions in agile development by enforcing strict verification of expected behaviors upfront. The Test-Driven Development process requires confirming test failures initially and successes after writing the exact implementation code.