Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /var/www/html/w/tests/phpunit/unit/includes/libs/Leximorph/Handler/PluralTest.php:26 Stack trace: #0 {main} thrown in /var/www/html/w/tests/phpunit/unit/includes/libs/Leximorph/Handler/PluralTest.php on line 26