Disable confirmation email for guest user

app/helpers/application_helper.rb

@@ -31,6 +31,7 @@ module ApplicationHelper
     u = User.create(:name => "guest", :email => "guest_#{Time.now.to_i}#{rand(99)}@example.com")
     end
     u.admin = false
+    u.skip_confirmation!
     u.save(:validate => false)
     u
   end