Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /data/htmlwww/wookteam/vendor/myclabs/deep-copy/tests/DeepCopyTest/Reflection/ReflectionHelperTest.php:14 Stack trace: #0 {main} thrown in /data/htmlwww/wookteam/vendor/myclabs/deep-copy/tests/DeepCopyTest/Reflection/ReflectionHelperTest.php on line 14