Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/appgulf1/elevator.hifisys.com/elevator/vendor/phpunit/php-timer/tests/ResourceUsageFormatterTest.php:20 Stack trace: #0 {main} thrown in /home/appgulf1/elevator.hifisys.com/elevator/vendor/phpunit/php-timer/tests/ResourceUsageFormatterTest.php on line 20