Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/digitalproduct/public_html/onlinejobportal/vendor/windwalker/structure/Test/Format/JsonFormatTest.php:18 Stack trace: #0 {main} thrown in /home/digitalproduct/public_html/onlinejobportal/vendor/windwalker/structure/Test/Format/JsonFormatTest.php on line 18