Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in I:\www\pvcHtml\vendor\pvc\struct\tests\unit_tests\collection\CollectionOrderedFactoryTest.php:10 Stack trace: #0 {main} thrown in I:\www\pvcHtml\vendor\pvc\struct\tests\unit_tests\collection\CollectionOrderedFactoryTest.php on line 10