Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/user/valentin/home/projects/mpdf/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php:15
Stack trace:
#0 {main}
thrown in /var/www/user/valentin/home/projects/mpdf/vendor/psr/log/Psr/Log/Test/LoggerInterfaceTest.php on line 15