Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/phpunit/php-code-coverage/tests/_files/NamespaceCoverageCoversClassPublicTest.php:7 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/phpunit/php-code-coverage/tests/_files/NamespaceCoverageCoversClassPublicTest.php on line 7