What testing framework does this skill support?

This skill is optimized for standard Ruby on Rails testing conventions, utilizing Minitest classes like ActiveSupport::TestCase and ActionDispatch::IntegrationTest.

How does the Red phase work in this workflow?

Claude identifies the appropriate test file, writes a failing test case that describes the desired behavior, and runs the test to confirm it fails for the correct reason before writing implementation code.

Does it support System Tests with Capybara?

Yes, the skill includes a framework for system tests to handle full browser testing and JavaScript-dependent features when necessary.

When should I use model tests versus controller tests?

The skill includes a decision matrix recommending model tests for business logic and validations, while using controller tests for HTTP responses, authentication, and parameter handling.

Rails TDD Workflow

Name: Rails TDD Workflow
Author: sevos

bysevos

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Security & Testing

Implements a disciplined Test-Driven Development cycle for Ruby on Rails applications using a structured Red-Green-Refactor framework.

About

The rails-tdd skill streamlines the development of Ruby on Rails applications by enforcing a strict Red-Green testing methodology. It provides Claude with a comprehensive decision framework for choosing the correct test types—ranging from model and controller tests to system and mailer tests—ensuring high code quality and regression safety. By guiding the AI through writing failing tests first and then implementing minimal code to pass, it promotes Rails best practices, prevents over-engineering, and maintains a clean, maintainable codebase.

Key Features

Structured Red-Green workflow for feature implementation and bug fixes
Automated CI loop integration using bin/ci and bin/rails test
Best practice guidance for test fixtures and data setup
Specific error-handling protocols for debugging failed test suites
2 GitHub stars
Comprehensive decision matrix for selecting appropriate Rails test types

Use Cases

Implementing new application features with a test-first approach
Fixing bugs by creating regression tests before applying patches
Refactoring existing Rails code while ensuring functional parity

About

Key Features

Structured Red-Green workflow for feature implementation and bug fixes
Automated CI loop integration using bin/ci and bin/rails test
Best practice guidance for test fixtures and data setup
Specific error-handling protocols for debugging failed test suites
2 GitHub stars
Comprehensive decision matrix for selecting appropriate Rails test types

Use Cases

Implementing new application features with a test-first approach
Fixing bugs by creating regression tests before applying patches
Refactoring existing Rails code while ensuring functional parity