gistfile1

$ ./run-specs.sh 
(in /Users/jay/Projects/gemini.fresh)
** Invoke spec (first_time)
** Execute spec
Failed to evaluate code:
          def position=(*arg1)
            raise Gemini::InvalidWrapWithCallbacksError.new("Cannot wrap position= with callbacks without \"position\"") unless respond_to?(:position)
            event = ValueChangedEvent.new(@target.position, *arg1)
            callback_abort = CallbackStatus.new
            @target.notify :before_position_changes, event
            if callback_abort.continue?
              self.wrapped_position=(*arg1)
              @target.notify :after_position_changes, event
            end
          end
./src/behavior.rb:63:in `class_eval': ./src/behavior.rb:69: , unexpected tRPAREN (SyntaxError)