A Ruby gem for faking external web services for testing

Jasmine testing framework support for Middleman

Property Based Testing library

Serverspec resources for testing the AWS infrastructure

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.

Assert that the conditions of your test are correct before testing

Semantic expectation helpers for JSON API testing using Airborne and RSpec.

A matcher for testing proc and lambda equivalance.

Wrap a daemon process start/stop for testing

JSON-RPC Server Specification Compatibility Testing

A minitest plugin for testing Shopify Liquid themes

A Jekyll library for Unit Testing

EasyPrompt is a utility for command-line scripts. It handles prompts and default values, and also provides a testing facility for mocking out the command-line user.

Seriously simple testing.

Full support for the Rails 3.1 asset pipeline when acceptance testing your coffeescript or javascript using jasmine

UnitController assists with unit testing controllers by stubbing view rendering.

Ruby gem to help testing i18n with Beaker

Analytics and AB Testing awesomeness for rails.

Testing Rails::Engine boot proccess.

Iudex is a general purpose web crawler and feed processor in ruby/java. The iudex-http-test gem contains a HTTP test server for testing HTTP client implementations.