Mainline is a rails plugin which exposes your rails app via webrick to allow testing with browser automators such as Selenium or Watir. Mainline allows your rails actions to run in the same transaction as your unit tests so you can use fixtures, factories, or whatever.

rutema [http://github.com/damphyr/rutema](http://github.com/damphyr/rutema) rutema is a test execution tool and a framework for organizing and managing test execution across different tools. It enables the combination of different test tools while it takes care of logging, reporting, archiving ...

Rack backend for ActiveResource for testing RESTful Rack APIs

Assertion style testing framework.

Serverspec resources for testing the AWS infrastructure

Testing framework for OpenStudio measures

An opinionated UI component regression testing tool built to be tightly integrated with RSpec, Selenium and tools you already use.

tconsole allows Rails developers to easily and quickly run their tests as a whole or in subsets. It forks the testing processes from a preloaded test environment to ensure that developers don't have to reload their entire Rails environment between test runs.

Simple, effective A/b testing made easy.

Split Tester provides support for A/B Split testing your pages with integration into Google Analytics.

Capistrano recipes to assist with development, testing, & deployment of SUL/DLSS Ruby projects

Ablab - A/B testing library

A Busser runner plugin for testing bash scripts

Tool-kit for testing based on changed files.

Simple heartbeat monitoring target for Rails apps with database connection testing, customizable output, HTTP status code, and Airbrake notification.

Didnt, a testing framework for the lazy and disillusioned.

Capybara DSL for fast and easy testing Active Admin applications.

Service Testing in Ruby

Simple load testing with EventMachine and PhantomJS/CasperJS

Phil is a collection of markup generation and iteration methods to ease creation of UI mockups. It uses Faker for standard content generation and adds a number of convenience methods and ways to build consistently varied markup for layout testing.