Fatal error: Uncaught Error: Class "PHPUnit_Framework_TestCase" not found in /home/rosengar/Lib/composerRosengartPHP7/vendor/sebastian/diff/tests/LCS/TimeEfficientImplementationTest.php:18 Stack trace: #0 {main} thrown in /home/rosengar/Lib/composerRosengartPHP7/vendor/sebastian/diff/tests/LCS/TimeEfficientImplementationTest.php on line 18