Fatal error: Uncaught Error: Class 'PHPUnit_Framework_TestCase' not found in E:\xampp\htdocs\api.astka\vendor\sebastian\global-state\tests\SnapshotTest.php:19 Stack trace: #0 {main} thrown in E:\xampp\htdocs\api.astka\vendor\sebastian\global-state\tests\SnapshotTest.php on line 19