A unit testing framework.

A mock object library for testing.

A highly opinionated mocking framework.

A full stack testing framework.

A fake data generator library.

An expressive fixture generation library.

A parallel testing library for PHPUnit.

An AST-based PHP Mutation testing framework.

A design by specification unit testing library.

A simple testing library.

A virtual filesystem stream wrapper for testing.

Full stack Unit/BDD testing framework with built-in stub, mock and code-coverage support.

A fixture factory generation library for Doctrine.

A MySQL engine written in pure PHP.

Another mock object library for testing.

A productive and enjoyable parallel unit testing framework.

A mock library for built-in PHP functions (e.g. time()).

Simplifies running PHPUnit tests on multiple PHPUnit versions.