Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /usr/home/jiexusheng/domains/linuxdo.isgre.at/public_html/vendor/clagiordano/weblibs-configmanager/tests/ConfigManagerTest.php:12
Stack trace:
#0 {main}
  thrown in /usr/home/jiexusheng/domains/linuxdo.isgre.at/public_html/vendor/clagiordano/weblibs-configmanager/tests/ConfigManagerTest.php on line 12