Mechanize temporary Git repositories during testing.

TED(Test Enhanced Development) - a testing framework that is not tedious

A truly object oriented testing library

A Ruby gem for faking external web services for testing, forked and updated version of Luke Redpath's mimic

Cucumber steps for testing mixpanel integration

Page Object DSL for iOS and Android mobile testing

Beaneater mock for testing

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

A command line tool for at-a-glance testing.

UnitController assists with unit testing controllers by stubbing view rendering.

Generating dummy data, perhaps for integration or performance testing

Minitest-based black box testing thing

Provide snapshot testing utilities for Rails views

Testing your library against different gem versions and ruby versions using RVM and Bundler

The Mutagem library provides file based mutexes for recursion protection and classes for threading of external processes with support for output and exit status capturing. A test suite is provided for both unit and functional testing. The c...

utilities for mutation testing

Contains macros / matchers for database behavious testing

Automate mutation testing to find weaknesses in code

Stress testing toolkit for Zold network