Fatal error: Uncaught Error: Class "CodeIgniter\Test\CIUnitTestCase" not found in /var/www/testingnew.webddocsystems.com/tests/session/ExampleSessionTest.php:9 Stack trace: #0 {main} thrown in /var/www/testingnew.webddocsystems.com/tests/session/ExampleSessionTest.php on line 9