Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in I:\www\pvcStruct\tests\unit_tests\tree\dto\TreenodeDtoOrderedTest.php:8 Stack trace: #0 {main} thrown in I:\www\pvcStruct\tests\unit_tests\tree\dto\TreenodeDtoOrderedTest.php on line 8