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test-driven-development

Write failing tests before implementation to guide minimal code changes.

Updated Mar 28, 2026
Search Tags:#testing#tdd#refactoring#red-green-refactor#quality-assurance#software-development#test-first
One-click install
npx skills add https://github.com/baselakkad585-maker/basel-dev-skills --skill test-driven-development-baselakkad585-maker
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: test-driven-development
Source: https://github.com/baselakkad585-maker/basel-dev-skills/tree/main/skills/test-driven-development
Command: npx skills add https://github.com/baselakkad585-maker/basel-dev-skills --skill test-driven-development-baselakkad585-maker

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Test-driven development helps prevent defects by forcing developers to specify expected behavior via tests before writing production code, reducing debugging time and improving design.

Core Features & Use Cases

  • Enforces a test-first workflow (Red-Green-Refactor) to guide implementation and safeguard against regressions.
  • Applies to feature development, bug fixes, and refactoring to ensure correct behavior and maintainability.
  • Encourages incremental design and safer refactors by validating intent through tests.

Quick Start

Write a failing test that captures the desired behavior, then implement only enough code to pass, and finally refactor.

Frequently Asked Questions about test-driven-development

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

FAQPage Schema
How does test-driven development prevent hidden defects in software?▼

Test-driven development prevents hidden defects by validating behavior through tests before implementation, requiring failing tests to guide minimal code and ensure correct functionality.

What is the Red-Green-Refactor cycle in test-first development?▼

The Red-Green-Refactor cycle in test-first development enforces writing a failing test, implementing minimal code to pass it, and then refactoring to improve design safely.

How do I apply test-driven development to bug fixes and refactoring?▼

Apply test-driven development to bug fixes and refactoring by writing tests that capture expected behavior, ensuring correct functionality and safeguarding against regressions during code changes.

When should I use a test-first workflow for feature development?▼

Use a test-first workflow for feature development to specify expected behavior upfront, reduce debugging time, encourage incremental design, and improve overall software maintainability.

Does test-driven development require specific testing frameworks to work?▼

Test-driven development does not require specific testing frameworks, as the methodology applies across software projects by enforcing the test-first workflow and Red-Green-Refactor cycle universally.

What's the best way to start writing tests before implementation?▼

Start writing tests before implementation by creating a failing test that captures the desired behavior, implement only enough code to pass, and finally refactor for cleaner design.

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