Got tests running on Rails 3: 369 tests, 486 assertions, 45 failures, 124 errors.

test/support/webrat/integrations/rails.rb

@@ -0,0 +1,31 @@
+require 'webrat/core/elements/field'
+
+module Webrat
+  Field.class_eval do
+    def parse_rails_request_params(params)
+      Rack::Utils.parse_nested_query(params)
+    end
+  end
+end
+
+module ActionController #:nodoc:
+  IntegrationTest.class_eval do
+    include Webrat::Methods
+    include Webrat::Matchers
+ 
+    # The Rails version of within supports passing in a model and Webrat
+    # will apply a scope based on Rails' dom_id for that model.
+    #
+    # Example:
+    #   within User.last do
+    #     click_link "Delete"
+    #   end
+    def within(selector_or_object, &block)
+      if selector_or_object.is_a?(String)
+        super
+      else
+        super('#' + RecordIdentifier.dom_id(selector_or_object), &block)
+      end
+    end
+  end
+end