Avoid warning when running tests

lib/webrat/rails_extensions.rb

@@ -2,19 +2,24 @@ module ActionController
   module Integration
 
     class Session
+      
+      unless instance_methods.include?("put_via_redirect")
         # Waiting for http://dev.rubyonrails.org/ticket/10497 to be committed.
         def put_via_redirect(path, parameters = {}, headers = {})
           put path, parameters, headers
           follow_redirect! while redirect?
           status
         end
+      end
 
+      unless instance_methods.include?("delete_via_redirect")
         # Waiting for http://dev.rubyonrails.org/ticket/10497 to be committed.
         def delete_via_redirect(path, parameters = {}, headers = {})
           delete path, parameters, headers
           follow_redirect! while redirect?
           status
         end
+      end
 
     end
     

lib/webrat/session.rb

@@ -454,7 +454,7 @@ module ActionController
       end
 
       def dom # :nodoc:
-        return @dom if @dom
+        return @dom if defined?(@dom) && @dom
         raise "You must visit a path before working with the page." unless response
         @dom = Hpricot(response.body)
         add_default_params

test/helper.rb

@@ -4,9 +4,13 @@ require "test/unit"
 begin require "redgreen" unless ENV['TM_CURRENT_LINE']; rescue LoadError; end
 require "mocha"
 
+
 require "active_support"
+
+silence_warnings do
   require "action_controller"
   require "action_controller/integration"
+end
 
 require File.expand_path(File.dirname(__FILE__) + "/../lib/webrat")