Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/websupportontdem/public_html/uscabinetonline.websupportondemo.com/old/vendor/magento/module-adobe-ims/Test/Integration/DbSchemaTest.php:18 Stack trace: #0 {main} thrown in /home/websupportontdem/public_html/uscabinetonline.websupportondemo.com/old/vendor/magento/module-adobe-ims/Test/Integration/DbSchemaTest.php on line 18