Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/esecureh/public_html/magdemo/vendor/magento/framework-message-queue/Test/Unit/ConsumerTest.php:35 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/vendor/magento/framework-message-queue/Test/Unit/ConsumerTest.php on line 35