Allows for matching data structures against given criteria. Very useful for testing JSON responses but may be used anywhere.

Example implementation to test my experiment on live unit testing. Make sure to check the blog post here : http://zisismaras.me/general/2015/05/01/exploring-live-unit-tests.html and the github repo.

Little Children is a simple OSC server for testing receiving OSC message. You can configure a port number and add some address (methods).

Testing creating a gem with Bundler

A Local Gateway -developed by InSTEDD- implemented in Ruby for testing purposes.

Disable CSS3 animations and filter out external JavaScript downloads. Helpful for reliable testing with Capybara.

Lucian is a test framework for Docker environments which running up containers using docker-compose.yml, and testing them using Rspec.

A lightweight testing framework that utilizes selenium to allow developers to write test cases

MTest is a microframework for testing your Ruby programs. It is inspired from Paul Barry's "One line test framework" which you can found at http://paulbarry.com/articles/2008/05/23/a-ruby-test-framework-in-one-line.

testing gem with lorum spec description

Headless browser for testing purposes powered by V8 JavaScript engine (via Mustang gem)

migration_test_helper makes testing your migrations easier by adding helper methods to Test::Unit::TestCase for asserting the current state of the schema and executing migrations against the test database.

moko is used for build restful API in secs, for testing puropse

Standalone mongo test server for use with rspec or other unit testing framework

Generating dummy data, perhaps for integration or performance testing

Minitest-based black box testing thing

Provide snapshot testing utilities for Rails views

utilities for mutation testing

Contains macros / matchers for database behavious testing

Automate mutation testing to find weaknesses in code