Fatal error: Uncaught Error: Class 'PHPUnit\Framework\TestCase' not found in /home/app/htdocs/ninja/vendor/symfony/options-resolver/Tests/OptionsResolverTest.php:20
Stack trace:
#0 {main}
thrown in /home/app/htdocs/ninja/vendor/symfony/options-resolver/Tests/OptionsResolverTest.php on line 20