Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in D:\svn\bitfx\vendor\sebastian\diff\tests\Output\Integration\UnifiedDiffOutputBuilderIntegrationTest.php:25 Stack trace: #0 {main} thrown in D:\svn\bitfx\vendor\sebastian\diff\tests\Output\Integration\UnifiedDiffOutputBuilderIntegrationTest.php on line 25