Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/symfony/http-kernel/Tests/CacheWarmer/CacheWarmerTest.php:17 Stack trace: #0 {main} thrown in /opt/lampp/htdocs/myhospitalnow/mhn-hospital-ms/vendorback/symfony/http-kernel/Tests/CacheWarmer/CacheWarmerTest.php on line 17