Fatal error: Uncaught Error: Class "PHPUnit\Framework\TestCase" not found in /home/www/coc-prococ/vendor/commerceguys/intl/tests/Language/LanguageRepositoryTest.php:14 Stack trace: #0 {main} thrown in /home/www/coc-prococ/vendor/commerceguys/intl/tests/Language/LanguageRepositoryTest.php on line 14