Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/tests/Unit/ExampleTest.php:7 Stack trace: #0 {main} thrown in /home2/santhos2/public_html/kannan.firstmatrix.in.net/core/tests/Unit/ExampleTest.php on line 7