Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/demoinvfsanz/public_html/vendor/doctrine/instantiator/tests/DoctrineTest/InstantiatorTest/Exception/InvalidArgumentExceptionTest.php:21 Stack trace: #0 {main} thrown in /home/demoinvfsanz/public_html/vendor/doctrine/instantiator/tests/DoctrineTest/InstantiatorTest/Exception/InvalidArgumentExceptionTest.php on line 21