Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/mohamed/education.mohamed-emad.com/vendor/zircote/swagger-php/tools/tests/CSFixer/SpecNamespaceAliasFixerTest.php:14 Stack trace: #0 {main} thrown in /home/mohamed/education.mohamed-emad.com/vendor/zircote/swagger-php/tools/tests/CSFixer/SpecNamespaceAliasFixerTest.php on line 14