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CenredJun
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test-driven-development

Enforce test-first development through red-green-refactor cycles.

Updated Mar 27, 2026
Search Tags:#tdd#red-green-refactor#unit-testing#quality-assurance#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/CenredJun/openclaw-claudecode-setup-kit --skill test-driven-development-cenredjun
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/CenredJun/openclaw-claudecode-setup-kit/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/CenredJun/openclaw-claudecode-setup-kit --skill test-driven-development-cenredjun

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

TDD helps developers ensure they write tests before coding, guiding design decisions and catching bugs early, which reduces production defects and rewrites.

Core Features & Use Cases

  • Red-Green-Refactor cycle: write a failing test, implement the minimal code to pass, and refactor for clarity.
  • Regression protection: tests anchor expected behavior so future changes do not introduce bugs.
  • Applicable scenarios: new features, bug fixes, and refactors across software projects.

Quick Start

Write a failing test that captures the desired behavior, then implement 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
What is test-driven development and how does the red-green-refactor cycle work?▼

Test-driven development (TDD) is a software engineering practice enforcing a red-green-refactor cycle: write a failing test, implement minimal production code to pass, then refactor with guardrails to ensure quality assurance.

How do I start writing unit tests before implementation for a new feature?▼

To start unit testing with TDD, write a failing test that captures the desired behavior first. Then, implement the minimal production code required to pass the test, ensuring no unvalidated code enters your software project.

Can I apply test-first development to bug fixes and refactors?▼

Yes, test-first development applies to bug fixes and refactors across software projects. Writing tests that anchor expected behavior provides regression protection, ensuring future changes do not introduce new bugs during iterative refactoring.

Why does test-driven development require minimal production code?▼

Test-driven development requires minimal production code to prevent over-engineering and ensure every line of code is validated by a failing test, guiding design decisions and catching bugs early to reduce production defects and rewrites.

What's the best way to prevent unvalidated production code in software engineering?▼

The best way to prevent unvalidated production code is enforcing test-first development. By specifying that tests must exist and fail before implementation, teams catch bugs early and reduce production defects through continuous regression protection.

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