xdebug/blog/vendor/phpunit/phpunit-mock-objects/README.md

PHPUnit_MockObject

PHPUnit_MockObject is the default mock object library for PHPUnit.

Requirements

• PHP 5.6 is required but using the latest version of PHP is highly recommended

Installation

You can add this library as a local, per-project dependency to your project using Composer:

composer require phpunit/phpunit-mock-objects

If you only need this library during development, for instance to run your project's test suite, then you should add it as a development-time dependency:

composer require --dev phpunit/phpunit-mock-objects