test-driven-development

Enforce the Red-Green-Refactor cycle for test-first software development.

Updated Jun 2, 2026
One-click install
npx skills add https://github.com/qiushibang/skill-creator-pro --skill test-driven-development-qiushibang
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/qiushibang/skill-creator-pro/tree/main/references/superpowers/test-driven-development
Command: npx skills add https://github.com/qiushibang/skill-creator-pro --skill test-driven-development-qiushibang

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This Skill solves the common issue of shipping untested, bug-prone code that leads to costly post-release debugging, unexpected regressions, and unclear code behavior that is hard to maintain or modify.

Core Features & Use Cases

  • Strict TDD Workflow Enforcement: Mandates the Red-Green-Refactor cycle for all feature development, bug fixes, and refactoring work, with clear rules to prevent skipping test-first steps.
  • Anti-Pattern Protection: Includes guidance to avoid common testing mistakes like testing mock behavior instead of real functionality, adding test-only code to production classes, and writing incomplete mocks.
  • Practical Guardrails: Provides verification checklists, red flag warnings, and debugging integration rules to ensure TDD is followed correctly even in complex scenarios. Use Case: For example, when implementing a new payment processing feature, use this Skill to first write a failing test for the transaction validation logic, then implement the minimal code to pass the test, ensuring the feature works as expected before moving to the next step.

Quick Start

Use the test-driven-development skill to implement the new user notification feature by first writing a failing test for the push notification delivery logic, then writing the minimal code to pass the test.

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 a strict test-driven development workflow for new features?

Apply test-driven development by following the Red-Green-Refactor cycle, verifying test failure before implementation, and writing minimal code to pass, ensuring reliable and maintainable feature behavior.

What is the best way to prevent testing anti-patterns during unit testing?

Prevent testing anti-patterns during unit testing by avoiding mock behavior testing, keeping test-only code out of production classes, and eliminating incomplete mocks to ensure tests validate real functionality.

How does test-driven development work when refactoring existing code?

Test-driven development works for refactoring by first writing failing tests that define expected behavior, then modifying the code to pass, preventing unexpected regressions and maintaining clear functionality.

Can I use test-driven development for bug fixes across any codebase?

Yes, you can use test-driven development for bug fixes across any codebase by writing a failing test that reproduces the bug, then applying minimal code changes to pass the test and eliminate the defect.

When should I not use test-first development for behavior changes?

You should avoid test-first development when skipping the verification of test failure before implementation, as bypassing this mandatory check risks introducing untested code and common testing anti-patterns.