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test-driven-development

Implement Test-Driven Development with a red-green-refactor cycle.

Updated Nov 3, 2025
Search Tags:#code quality#TDD#software development#bug fixing#test-driven-development
One-click install
npx skills add https://github.com/ethicalcapital/skills --skill test-driven-development-ethicalcapital
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/ethicalcapital/skills/tree/main/test-driven-development
Command: npx skills add https://github.com/ethicalcapital/skills --skill test-driven-development-ethicalcapital

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

This Skill helps developers implement features or fix bugs by enforcing the Test-Driven Development (TDD) methodology, ensuring code quality and reliability.

Core Features & Use Cases

  • Test-First Approach: Write tests before writing implementation code.
  • Red-Green-Refactor Cycle: Follow the TDD cycle of writing a failing test, writing code to pass the test, and refactoring.
  • Error Handling and Edge Cases: Encourage thorough testing to cover all scenarios.

Quick Start

Start a new feature by writing a test that defines the expected behavior.

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 improve code quality?▼

Test-driven development (TDD) improves code quality by enforcing a test-first approach. You write a failing test defining expected behavior before implementation, ensuring software reliability and thorough error handling throughout the development cycle.

How do I implement the red-green-refactor cycle for new features?▼

To implement the red-green-refactor cycle, write a failing test defining the new feature's expected behavior, write the minimum code to pass that test, and then refactor. This ensures code quality through rigorous testing.

Can I use TDD for bug fixing in existing software development projects?▼

Yes, you can use TDD for bug fixing in software development. Write a test that reproduces the bug and fails, implement the code fix to make it pass, and refactor. This ensures the bug is covered and prevents regressions.

Does test-driven development work for any programming language or framework?▼

Test-driven development is applicable to any software development project regardless of language. The methodology focuses on the test-first process and error handling rather than specific frameworks, ensuring code reliability across platforms.

What's the best way to cover edge cases when writing tests first?▼

The best way to cover edge cases in TDD is to write tests that explicitly define expected behavior for unusual inputs and error conditions before implementation. This encourages thorough testing and ensures robust software reliability.

Why should I write a failing test before writing implementation code?▼

You should write a failing test before implementation code to validate that the test actually checks the expected behavior. This TDD practice ensures code quality by confirming the test fails for the right reason before you make it pass.

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