Programmer-friendly testing framework for Java and the JVM
Cucumber for Ruby
High-performance load testing tool, written in Golang
Node.js test runner that lets you develop with confidence
A PHP library that generates fake data for you
Unit testing framework for Fortran with MPI extensions
Test spies, stubs and mocks for JavaScript
Monkey testing library for web apps and Node.js
Arbitrary expression evaluation for golang
Modular web site spider for web developers.