Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/airtimer/public_html/dev/tests/static/testsuite/Magento/Test/Integrity/GraphQlDependencyTest.php:21 Stack trace: #0 {main} thrown in /home/airtimer/public_html/dev/tests/static/testsuite/Magento/Test/Integrity/GraphQlDependencyTest.php on line 21