Mockery : Mockery is a simple yet flexible PHP mock object framework for use in unit testing with PHPUnit, PHPSpec or any other testing framework. Its core goal...
mock : A Python Mocking and Patching Library for Testing
Polly.JS : Polly.JS is a standalone, framework-agnostic JavaScript library that enables recording, replaying, and stubbing HTTP interactions.
Polly taps into nat...
Cobra : Cobra is a library providing a simple interface to create powerful modern CLI interfaces similar to git & go tools.
Cobra is also an application that ...
Go code (golang) set of packages that provide many tools for testifying that your code will behave as you intend.