Fatal error: Uncaught Error: Class 'Magento\TestFramework\TestCase\SetupTestCase' not found in /home/esecureh/public_html/magdemo/dev/tests/setup-integration/testsuite/Magento/Setup/SafeInstallerTest.php:19 Stack trace: #0 {main} thrown in /home/esecureh/public_html/magdemo/dev/tests/setup-integration/testsuite/Magento/Setup/SafeInstallerTest.php on line 19