Fatal error: Uncaught Error: Undefined constant "STDOUT" in /home/supratz/www/skyboard-refac/backend/tests/ResponseEnvelopeTest.php:26 Stack trace: #0 /home/supratz/www/skyboard-refac/backend/tests/ResponseEnvelopeTest.php(30): ResponseEnvelopeTest->run() #1 {main} thrown in /home/supratz/www/skyboard-refac/backend/tests/ResponseEnvelopeTest.php on line 26