Fatal error: Uncaught Error: Class 'TestCase' not found in /home/user1111058/www/dev.companysam.by/vendor/clue/buzz-react/tests/Io/TransactionTest.php:15 Stack trace: #0 {main} thrown in /home/user1111058/www/dev.companysam.by/vendor/clue/buzz-react/tests/Io/TransactionTest.php on line 15