diff --git a/graphene/test/__init__.py b/graphene/test/__init__.py
index 98c8547c..6ebf8468 100644
--- a/graphene/test/__init__.py
+++ b/graphene/test/__init__.py
@@ -15,7 +15,8 @@ def default_format_error(error):
 def format_execution_result(execution_result, format_error):
     if execution_result:
         response = {}
-
+        response['invalid'] = execution_result.invalid
+        
         if execution_result.errors:
             response['errors'] = [format_error(e) for e in execution_result.errors]