17 best PHP Unit Testing libraries in 2022

Unit testing is a software development process in which the smallest testable parts of an application, called units, are individually and independently scrutinized for proper operation. Unit testing can be done manually but is often automated. The goal of unit testing is to isolate each part of the program and show that individual parts are correct in terms of requirements and functionality. A unit test provides a strict, written contract that the piece of code must satisfy. The entire list of the best 17 best Python Unit Testing Open Source libraries including phpunit - The PHP Unit Testing framework; mockery - simple yet flexible PHP mock object framework; atoum - The modern, simple and intuitive PHP unit testing framework.