Fatal error: Uncaught Error: Class 'React\Tests\Dns\TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/react/dns/tests/Query/UdpTransportExecutorTest.php:13 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/react/dns/tests/Query/UdpTransportExecutorTest.php on line 13