What happens if a test passes immediately?

If a test passes before production code is added, it indicates you are testing existing behavior. The skill will prompt you to fix the test so it truly validates the new feature.

How does the skill handle bug fixing?

For every bug, the skill requires writing a failing test that reproduces the issue. Only once the test fails for the right reason can the fix be implemented.

Does this skill encourage the use of mocks?

The skill prioritizes testing real code and behavior. It recommends avoiding mocks unless they are absolutely unavoidable to ensure tests remain meaningful.

What is the Iron Law in this TDD skill?

The Iron Law mandates that no production code is written unless there is a failing test first. If code is written before a test, it must be deleted and restarted.

Test-Driven Development (TDD)

Name: Test-Driven Development (TDD)
Author: mixomat

bymixomat

0•

安全与测试

Enforces a disciplined Red-Green-Refactor workflow to ensure all production code is verified by failing tests first.

This skill integrates a strict Test-Driven Development (TDD) methodology into Claude's coding workflow, adhering to the 'Iron Law' that no production code should be written without a preceding failing test. It guides the development process through the essential stages of writing minimal failing tests, implementing the simplest code necessary to pass, and refactoring for optimal design. This approach is ideal for developers seeking high test coverage, bug-free feature implementation, and robust code architectures that are easy to maintain and evolve.

主要功能

01Focus on minimal production code to avoid over-engineering

02Strict Red-Green-Refactor cycle enforcement

03Comprehensive verification checklists for test-ready implementations

040 GitHub stars

05Mandatory verification of failing tests to prevent false positives

06Systematic bug reproduction through failing unit tests

使用场景

01Refactoring legacy codebases while ensuring behavioral consistency

02Implementing new features with guaranteed unit test coverage

03Reproducing and patching complex bugs using a test-first approach

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mixomat/claude-plugins test-driven-development

For use in Claude.ai and ChatGPT

主要功能

01Focus on minimal production code to avoid over-engineering

02Strict Red-Green-Refactor cycle enforcement

03Comprehensive verification checklists for test-ready implementations

040 GitHub stars

05Mandatory verification of failing tests to prevent false positives

06Systematic bug reproduction through failing unit tests

使用场景

01Refactoring legacy codebases while ensuring behavioral consistency

02Implementing new features with guaranteed unit test coverage

03Reproducing and patching complex bugs using a test-first approach

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add mixomat/claude-plugins test-driven-development

For use in Claude.ai and ChatGPT