.from.should == 'mapperproxy'       end              @instance.push('/welcome/aboard', 'iZac')     end          it "should mark the message as persistent when the option is specified on the parameter" do       @fanout.should_receive(:publish).with do |push|         push = @instance.serializer.load(push)         push.persistent.should == true       end              @instance.push('/welcome/aboard', 'iZac', :