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test-driven-development

Enforce a test-first workflow with failing tests before production code.

4|1|Updated Jan 22, 2026
Search Tags:#tdd#debugging#red-green-refactor#quality-assurance#test-driven-development
One-click install
npx skills add https://github.com/zenchantlive/Turtlez --skill test-driven-development-zenchantlive
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/zenchantlive/Turtlez/tree/main/.claude/skills/test-driven-development
Command: npx skills add https://github.com/zenchantlive/Turtlez --skill test-driven-development-zenchantlive

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

It provides a disciplined workflow that ensures software changes are driven by tests, preventing regressions and uncovering design issues early.

Core Features & Use Cases

  • Red-Green-Refactor cycle: write a failing test, implement the minimal feature, and refactor with confidence.
  • Production code guardrails: guarantee that tests exist before code is promoted to production.
  • Applicable to features, bug fixes, and refactoring across teams and projects.

Quick Start

Write a failing test first for the intended behavior, then implement the smallest code to pass it.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How does test-driven development prevent software regressions during refactoring?▼

Test-driven development prevents regressions by enforcing a test-first workflow where explicit failing tests validate behavior before any production code is written. This ensures iterative refactoring maintains green tests, catching issues early across feature development and bug fixes.

What is the red-green-refactor cycle for writing failing tests first?▼

The red-green-refactor cycle in test-driven development starts by writing a failing test for the intended behavior, then implementing the minimal production code to pass it, and finally refactoring with confidence while keeping all tests green.

How do I start writing minimal production code to pass a failing test?▼

To start writing minimal production code, first create an explicit failing test that defines the expected behavior. Then, implement the smallest amount of code needed to make that specific test pass, ensuring you ship code with confidence.

Can I use a test-first workflow for both feature development and bug fixes?▼

Yes, the test-first workflow is applicable to feature development, bug fixes, and refactoring across different projects and teams. It provides production code guardrails by guaranteeing that tests exist before code is ever promoted to production.

What's the best way to enforce quality assurance before promoting code to production?▼

The best way to enforce quality assurance is by adopting a disciplined test-driven development workflow. This guarantees explicit tests are written and pass before code promotion, preventing regressions and uncovering design issues early.

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