Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /mnt/VenusReview/review/lyrasoft/dva/master/vendor/php-http/discovery/tests/Exception/InitializeExceptionTest.php:8 Stack trace: #0 {main} thrown in /mnt/VenusReview/review/lyrasoft/dva/master/vendor/php-http/discovery/tests/Exception/InitializeExceptionTest.php on line 8