An RSpec plugin that generates coverage data for CircleCI's Smarter Testing

🍲 Kettle::Dev is a meta tool from kettle-dev to streamline development and testing. Acts as a shim dependency, pulling in many other dependencies, to give you OOTB productivity with a RubyGem, or Ruby app project. Configures a complete set of Rake tasks, for all the libraries is brings in, so they arrive ready to go. Fund overlooked open source projects - bottom of stack, dev/test dependencies: floss-funding.dev

Reeve makes it safe for a Rails application to expose MCP (Model Context Protocol) tools to AI agents. Authentication says who is at the door; Reeve decides what they may touch and remembers what they touched: declarative per-record authorization scoped to the human the agent acts for, an append-only audit ledger of every call, and a testing kit that turns both guarantees into CI assertions. Works alongside fast-mcp, ActionMCP, and the official mcp gem. Developed under the working name mcp-guardrails.

Hypothesis is a powerful, flexible, and easy to use library for property-based testing.

ACE testing knowledge base with guides, testing patterns, and workflow instructions for fast and reliable code validation.

A toolkit for building modeling frameworks like Active Record. Rich support for attributes, callbacks, validations, serialization, internationalization, and testing.

A toolkit of support libraries and Ruby core extensions extracted from the Rails framework. Rich support for multibyte strings, internationalization, time zones, and testing.

Databases on Rails. Build a persistent domain model by mapping database tables to Ruby classes. Strong conventions for associations, validations, aggregations, migrations, and testing come baked-in.

Web apps on Rails. Simple, battle-tested conventions for building and testing MVC web applications. Works with any Rack-compatible server.

Selenium implements the W3C WebDriver protocol to automate popular browsers. It aims to mimic the behaviour of a real user as it interacts with the application's HTML. It's primarily intended for web application testing, but any web-based task can automated.

An all-in-one offensive security toolkit built in Rust. 250+ independent attack modules covering web exploitation, infrastructure testing, credential attacks, AI/LLM abuse, cloud/container, supply chain security, OT/ICS, IoT, network protocols, AI/LLM security, zero-day/CVE exploitation, and payload generation — all in a single binary.

You probably meant `gem install rails-dom-testing`.

🫥 Stub or hide environment variables in a scoped context for testing stub_env('REDIS_URL' => 'redis://localhost:6379/') hide_env('SESSION_SECRET')

🍲 Kettle::Test is a meta tool from kettle-dev to streamline testing. Acts as a shim dependency, pulling in many other dependencies, to give you OOTB productivity with a RubyGem, or Ruby app project. Configures RSpec w/ syntactic sugar to make writing tests, and testing more scenarios, easier.Configures each dependency library for proper use in the test suite, so they arrive ready to go. Fund overlooked open source projects - bottom of stack, dev/test dependencies: floss-funding.dev

Provides base classes, types, mock crypto, real hashes, and EC operations for writing and testing Runar smart contracts in Ruby.

An MCP (Model Context Protocol) server that gives AI assistants (Claude, Cursor, Copilot, VS Code) deep, intelligent understanding of any Rails application. 15 tools covering routes, models, controllers, security, testing, and full request lifecycle tracing.

🚿 Constant deletion and reset helpers for gems that need repeatable reloads while testing constant-backed runtime configuration.

Mutation testing for Ruby and Rails. Uses Prism-based source-span mutations (no unparser), coverage-mapped test selection, and a fork-per-mutant kill pipeline. Scopes to changed methods for a fast dev loop, or to a diff for CI. Includes an incremental coverage baseline and a committed acceptance ledger for equivalent mutants.

RubstAPI is a FastAPI-inspired, Rack-compatible framework for building typed Ruby REST APIs. It provides request and response validation, dependency injection, OpenAPI 3.1 schemas, Swagger UI, ReDoc, security helpers, middleware, routing, background tasks, and testing utilities.

A simple mutation testing framework that runs tests in parallel, generates detailed reports, and helps improve test quality by identifying weak spots in your test suite. Especially useful for you AI workflow