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test-driven-development

Guide teams through the Red-Green-Refactor cycle for test-first development.

1|Updated Jan 5, 2026
Search Tags:#quality assurance#TDD#refactoring#red-green-refactor#unit-testing#test-driven-development#software-testing
One-click install
npx skills add https://github.com/wedsamuel1230/electronic-mcp-server --skill test-driven-development-wedsamuel1230
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/wedsamuel1230/electronic-mcp-server/tree/main/.github/skills/test-driven-development
Command: npx skills add https://github.com/wedsamuel1230/electronic-mcp-server --skill test-driven-development-wedsamuel1230

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This skill helps teams avoid regressions by enforcing a test-first approach, ensuring that software behavior is specified and verified before implementation.

Core Features & Use Cases

  • Red-Green-Refactor cycle to drive minimal, reliable code.
  • Fail-First Testing practice that catches design flaws early.
  • Refactoring Confidence by maintaining green tests during changes.

Quick Start

Write a failing test for the desired feature, implement the minimal code to pass, and run the test suite to confirm all tests pass.

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 is a test-first discipline where you write a failing test, implement minimal code to pass it, and then refactor. The red-green-refactor cycle drives reliable software by ensuring behavior is verified before implementation.

How do I use unit-testing to prevent software regressions during refactoring?▼

Use unit-testing to establish a green test suite before refactoring. By maintaining passing tests while changing code, you catch design flaws early and ensure behavior remains verified, preventing regressions during behavior changes.

How do I start writing fail-first tests for new feature work?▼

Start fail-first testing by writing a failing test that specifies the desired feature behavior. Implement the minimal code required to pass the test, then run the test suite to confirm all tests pass before proceeding to refactoring.

Does test-driven development work for bug fixes and behavior changes?▼

Yes, test-driven development applies across feature work, bug fixes, refactors, and behavior changes. It enforces a test-first workflow that ensures failing tests drive minimal implementation for any software modification.

What is the best way to drive minimal code implementation in software engineering?▼

The best way to drive minimal implementation is test-driven development. By writing failing tests first, you ensure only the necessary code to satisfy the specified behavior is written, promoting reliable and repeatable refactoring.

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