Can this skill help with mocking external services?

Yes, it includes specific mock patterns for popular services like Supabase, Redis, and OpenAI to ensure isolated and reliable unit testing without calling live APIs.

What testing frameworks does this skill support?

It provides patterns and workflows for Jest, Vitest, and Playwright, making it suitable for both backend and frontend development environments.

Is this skill suitable for existing projects?

Absolutely. While designed for TDD, it can be used to add tests to existing features or to guide the refactoring process to improve code maintainability and stability.

Does it support End-to-End (E2E) testing?

Yes, it includes specialized sections for Playwright to automate critical user journeys, browser interactions, and UI validation.

How does it enforce the 80% coverage rule?

The skill provides guidance and commands to run coverage reports and includes configuration examples to set global coverage thresholds within your project's test runner.

TDD Workflow

Name: TDD Workflow
Author: affaan-m

byaffaan-m

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43,117

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Security & Testing

Enforces test-driven development principles with a comprehensive workflow to ensure 80%+ code coverage across unit, integration, and E2E tests.

This skill provides a structured framework for Test-Driven Development (TDD) within Claude Code, guiding developers through the cycle of writing tests before implementation. It mandates high coverage standards and includes standardized patterns for unit testing with Jest/Vitest, API integration testing, and end-to-end browser automation with Playwright. By following this workflow, teams can ensure code reliability, catch bugs early, and facilitate safer refactoring with battle-tested mocking strategies and clear success metrics.

Key Features

01Standardized templates for unit, integration, and Playwright E2E tests

0243,117 GitHub stars

03Integrated coverage validation and CI/CD best practices

04Automated TDD cycle enforcement (Red-Green-Refactor)

05Comprehensive mocking strategies for Supabase, Redis, and OpenAI

06Minimum 80% code coverage requirement across all test levels

Use Cases

01Refactoring legacy code while maintaining functional integrity via high coverage

02Developing new features with a 'test-first' approach to ensure reliability

03Implementing robust API endpoints and UI components with standardized test patterns

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add affaan-m/everything-claude-code tdd-workflow

For use in Claude.ai and ChatGPT

Download Skill