Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\svn\bitfx\vendor\sebastian\diff\tests\Output\DiffOnlyOutputBuilderTest.php:22 Stack trace: #0 {main} thrown in D:\svn\bitfx\vendor\sebastian\diff\tests\Output\DiffOnlyOutputBuilderTest.php on line 22