Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/ysiidorg/public_html/vendor/marcusschwarz/lesserphp/tests/ErrorHandlingTest.php:6 Stack trace: #0 {main} thrown in /home/ysiidorg/public_html/vendor/marcusschwarz/lesserphp/tests/ErrorHandlingTest.php on line 6