TestDrivenDevelopment

Implement the Red-Green-Refactor cycle for writing tests first.

3|1|Updated Feb 22, 2026
One-click install
npx skills add https://github.com/N4M3Z/forge-dev --skill testdrivendevelopment-n4m3z
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: TestDrivenDevelopment
Source: https://github.com/N4M3Z/forge-dev/tree/main/skills/TestDrivenDevelopment
Command: npx skills add https://github.com/N4M3Z/forge-dev --skill testdrivendevelopment-n4m3z

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This Skill helps developers write more robust, maintainable, and correct code by adhering to the principles of Test-Driven Development (TDD). It guides the process of building software through a cycle of writing tests first, then implementing the code to pass those tests.

Core Features & Use Cases

  • Red-Green-Refactor Cycle: Guides the fundamental TDD workflow.
  • Test Categorization: Explains and demonstrates Unit, Integration, Edge Case, and Property-Based tests.
  • Test Organization: Provides conventions for structuring tests within Rust projects and legacy shell test suites.
  • Use Case: When starting a new feature, use this Skill to ensure you write failing tests before writing any implementation code, leading to a more testable and reliable codebase.

Quick Start

Follow the Red-Green-Refactor cycle to write a new test for the desired functionality.

Frequently Asked Questions about TestDrivenDevelopment

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

FAQPage Schema
What is the Red-Green-Refactor cycle in test-driven development?

Test-driven development helps write robust, maintainable code by forcing you to write failing tests before implementation, ensuring your codebase remains highly testable and functionally correct from the start.

How do I structure unit, integration, and property-based tests in Rust?

You can structure unit, integration, and property-based tests in Rust by following specific test organization conventions that separate test categories logically within your project to ensure optimal coverage and maintainability.

When should I write edge case tests during software development?

You should write edge case tests during software development as part of the test categorization process to verify that your code correctly handles boundary conditions and unexpected inputs alongside standard unit and integration tests.

What are common testing anti-patterns when doing TDD?

Common testing anti-patterns in TDD include writing tests after implementation, creating overly complex tests, and ignoring test coverage strategies, all of which undermine the goal of producing robust and maintainable code.

Can I use test-driven development for adding new features to legacy shell test suites?

Yes, you can use test-driven development for adding new features to legacy shell test suites by following the provided workflows to write failing tests first and structure your new tests effectively within the existing project.