Investigating "super unless allow" issues

base_spec-fragment.rb

# Demonstrating the the "super unless allow?(method)" line *might* cause
# problems, but only under weird circumstances involving the ancestors
# of the Draper::Base class.  Since the ancestor list is pretty stable,
# this probably isn't an issue (note I had to include a module into 
# Draper::Base to trigger the problem -- Yikes!).
#
# So, after analysis, "super unless allow?" isn't a practical problem.
#
# HOWEVER, it would be nice for the code to reflect that it isn't a 
# problem without requiring extensive research.

    context "in weird inheritance tree" do
      PING_COUNTER = []

      class NoPingDecorator < Decorator
        denies :ping
      end

      module NastyAncestor
        def method_missing(sym, *args, &block)
          if sym == :ping
            PING_COUNTER << :ping
          else
            super
          end
        end
      end

      class Draper::Base
        include NastyAncestor
      end

      subject{ NoPingDecorator.new(source) }

      it "is not called twice" do
        PING_COUNTER.clear
        subject.ping
        PING_COUNTER.should == [:ping]
      end
    end

Wow.