Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/azsoluti/public_html/kimai.azsolutionspk.com/tests/Security/UserCheckerTest.php:21 Stack trace: #0 {main} thrown in /home/azsoluti/public_html/kimai.azsolutionspk.com/tests/Security/UserCheckerTest.php on line 21