Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in I:\www\pvcValidator\tests\val_tester\ctype\CTypeTesterAlphaNumericTest.php:11 Stack trace: #0 {main} thrown in I:\www\pvcValidator\tests\val_tester\ctype\CTypeTesterAlphaNumericTest.php on line 11