add tests for object_should_be_processed_as_public? and delegegated public to the parent of relayable objects

app/models/comment.rb

@@ -76,4 +76,5 @@ class Comment < ActiveRecord::Base
   def parent= parent
     self.post = parent
   end
+
 end

lib/diaspora/relayable.rb

@@ -15,6 +15,8 @@ module Diaspora
 
         validates_associated :parent
         validates :author, :presence => true
+        
+        delegate :public?, :to => :parent
       end
     end
 

lib/postzord/dispatcher.rb

@@ -27,8 +27,6 @@ class Postzord::Dispatcher
   def self.object_should_be_processed_as_public?(object)
     if object.respond_to?(:public?) && object.public?
       true
-    elsif object.respond_to?(:relayable?) && object.parent.respond_to?(:public?) && object.parent.public?
-      true
     else
       false
     end

spec/lib/postzord/dispatcher_spec.rb

@@ -256,6 +256,24 @@ describe Postzord::Dispatcher do
       end
     end
 
+    describe '#object_should_be_processed_as_public?' do
+      it 'returns true with a comment on a public post' do
+        f = Factory(:comment, :post => Factory(:status_message, :public => true))
+        Postzord::Dispatcher.object_should_be_processed_as_public?(f).should be_true
+      end
+
+      it 'returns false with a comment on a private post' do
+        f = Factory(:comment, :post => Factory(:status_message, :public => false))
+        Postzord::Dispatcher.object_should_be_processed_as_public?(f).should be_false
+      end
+
+      it 'returns true with a like on a comment on a private post' do
+        f = Factory(:like, :target => Factory(:comment, :post => Factory(:status_message, :public => true)))
+        Postzord::Dispatcher.object_should_be_processed_as_public?(f).should be_true
+      end
+    end
+
+
     describe '#deliver_to_services' do
       before do
         alice.aspects.create(:name => "whatever")