Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/astechc1/public_html/vendor/mercuryseries/flashy-bundle/tests/FlashNotifierTest.php:8 Stack trace: #0 {main} thrown in /home/astechc1/public_html/vendor/mercuryseries/flashy-bundle/tests/FlashNotifierTest.php on line 8