Fatal error: Uncaught Error: Undefined constant "STDOUT" in /home/supratz/www/skyboard-refac/backend/tests/RulesSchemaProviderTest.php:14 Stack trace: #0 /home/supratz/www/skyboard-refac/backend/tests/RulesSchemaProviderTest.php(38): RulesSchemaProviderTest->run() #1 {main} thrown in /home/supratz/www/skyboard-refac/backend/tests/RulesSchemaProviderTest.php on line 14