Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /var/www/html/vendor/phpunit/php-code-coverage/tests/_files/NamespaceCoverageNotProtectedTest.php:4 Stack trace: #0 {main} thrown in /var/www/html/vendor/phpunit/php-code-coverage/tests/_files/NamespaceCoverageNotProtectedTest.php on line 4