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test-driven-development

Guide users through the Test-Driven Development Red-Green-Refactor cycle.

Updated Feb 27, 2026
Search Tags:#code quality#testing#tdd#best practices#refactoring#software development
One-click install
npx skills add https://github.com/ZJUxjy/opencode_lite --skill test-driven-development-zjuxjy
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/ZJUxjy/opencode_lite/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/ZJUxjy/opencode_lite --skill test-driven-development-zjuxjy

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 improve design by requiring tests to be written before implementation code.

Core Features & Use Cases

  • Enforces Red-Green-Refactor Cycle: Guides users through writing a failing test, minimal code to pass, and then refactoring.
  • Prevents Common Pitfalls: Addresses rationalizations and anti-patterns that lead to poor testing practices.
  • Use Case: When starting a new feature, use this Skill to ensure you write a test that fails for the new behavior, then write just enough code to make that test pass, and finally clean up the code while keeping tests green.

Quick Start

Follow the TDD cycle to implement the new feature, starting with a failing test.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
What is the Test-Driven Development cycle for writing new software features?▼

TDD methodology requires writing a failing test before implementation code, then adding minimal code to pass it, and finally refactoring. This enforces the Red-Green-Refactor cycle to ensure high code quality.

How do I start implementing a new feature using Test-Driven Development?▼

Start TDD by writing a failing test for the new behavior. Then write just enough implementation code to make that test pass, and finally clean up the code while keeping the tests green.

Why does writing tests after implementation lead to poor software design?▼

Writing tests after implementation leads to rationalizations and testing anti-patterns. TDD prevents these pitfalls by rigorously requiring tests before implementation code to drive better software design.

Can I use Test-Driven Development for any software development task?▼

TDD is applicable to all software development tasks requiring high code quality and maintainability. It requires no specific dependencies and works across any programming language or framework.

Does Test-Driven Development require any specific testing frameworks or dependencies?▼

TDD requires no specific testing frameworks or dependencies. The methodology is applicable to all software development tasks, focusing on the Red-Green-Refactor cycle rather than specific testing tools.

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