Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /mnt/VenusReview/review/lyrasoft/dva/master/vendor/myclabs/php-enum/tests/EnumTest.php:14 Stack trace: #0 {main} thrown in /mnt/VenusReview/review/lyrasoft/dva/master/vendor/myclabs/php-enum/tests/EnumTest.php on line 14