skills.rest
tangzheng202202
tangzheng202202COMMUNITY
Explore all skills by this author →
GitHub

test-driven-development

Write failing tests before code and refactor incrementally.

1|Updated Apr 13, 2026
Search Tags:#testing#tdd#refactoring#quality#software-engineering#test-driven-development
One-click install
npx skills add https://github.com/tangzheng202202/hermes-skills --skill test-driven-development-tangzheng202202
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/tangzheng202202/hermes-skills/tree/main/01-coding-dev/software-development/test-driven-development
Command: npx skills add https://github.com/tangzheng202202/hermes-skills --skill test-driven-development-tangzheng202202

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Writing code without tests often leads to brittle features and high debugging costs; this skill enforces a test-first workflow to ensure correctness from the start.

Core Features & Use Cases

  • Test-first design: Write focused, failing tests before implementing logic.
  • Red-Green-Refactor discipline: Iterate from failing tests to minimal implementation and refinement.
  • Quality assurance at change time: Safeguard features during feature additions and bug fixes with automated tests.

Quick Start

Begin by drafting a failing test that captures the intended behavior, then implement just enough code to make the test 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 it ensure software quality?▼

Test-driven development (TDD) is a test-first workflow where you write focused failing tests before implementing logic, ensuring software correctness from the start and reducing high debugging costs.

How do I start writing failing tests before implementing new features?▼

Begin by drafting a minimal, failing test that captures the intended behavior, then implement just enough code to make it pass, following the Red-Green-Refactor discipline to drive design incrementally.

Can I use test-driven development for bug fixes across different programming languages?▼

Yes, you can apply test-driven development for bug fixes across most software projects and languages by defining minimal, verifiable tests before code to safeguard features during changes.

What's the best way to refactor code safely after writing tests?▼

The best way to refactor code safely is to maintain clean, well-tested code by running your automated tests continuously, ensuring your refactoring efforts do not break existing functionality.

Why does writing code without tests lead to brittle features?▼

Writing code without tests leads to brittle features because there is no automated verification to safeguard behavior during feature additions, which increases debugging costs and compromises quality assurance at change time.

Related Skills

Explore More Software Engineering Skills→
timbuchingertimbuchinger
1

test-driven-development

Enforce writing failing tests before implementing minimal code to pass.

Community
Basic
Marwan78888Marwan78888
16

test-driven-development

Guide JavaScript/TypeScript feature development with red-green-refactor test cycles.

Community
Intermediate
DevelopersGlobalDevelopersGlobal
65

ci-cd-pipelines

Automate CI/CD pipelines with quality gates and deployment processes.

Official
Advanced
skeeper75skeeper75

moai-workflow-tdd

Guide developers through the RED-GREEN-REFACTOR TDD cycle for new features.

Community
Intermediate