Utility method to define a method and a stub override

src/spectator/mocks/double.cr

@@ -19,7 +19,7 @@ module Spectator
       {% if name %}@[DoubleName({{name}})]{% end %}
       class {{type_name.id}} < {{@type.name}}
         {% for key, value in value_methods %}
-          stub def {{key.id}}
+          inject_stub def {{key.id}}
             {{value}}
           end
         {% end %}

src/spectator/mocks/stubable.cr

@@ -71,5 +71,10 @@ module Spectator
         end
       end
     end
+
+    private macro inject_stub(method)
+      {{method}}
+      stub {{method}}
+    end
   end
 end