Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in I:\www\php_vendor_tests\vendor\lsolesen\pel\test\imagetests\PentaxIstDSTest.php:30 Stack trace: #0 {main} thrown in I:\www\php_vendor_tests\vendor\lsolesen\pel\test\imagetests\PentaxIstDSTest.php on line 30