Add extra linefeeds to input stream to mimic empty answers

Author: lenar

Tests/Command/GenerateCommandTest.php

@@ -43,7 +43,7 @@ protected function getBundle()
     protected function getInputStream($input)
     {
         $stream = fopen('php://memory', 'r+', false);
-        fputs($stream, $input);
+        fputs($stream, $input.str_repeat("\n", 10));
         rewind($stream);
 
         return $stream;