at the bottom of test_helper.rb

module Test # :nodoc: all
  module Unit 
    class TestCase

      def self.should_assign_to_value(name,value)
        should "assign @#{name}" do
          assert assigns(name.to_sym), "The action isn't assigning to @#{name}"
          if value =~ /#\{/
            tmp = '"' + value + '"'
            assert_equal assigns(name.to_sym),eval(tmp,binding)
          else
            assert_equal assigns(name.to_sym),value
          end
        end
      end

      def self.should_redirect_to(url)
        should "redirect to #{url.inspect}" do
          instantiate_variables_from_assigns do

            if url =~ /#\{/
              tmp = '"' + url + '"'
              assert_redirected_to eval(tmp, self.send(:binding), __FILE__, __LINE__)              
            else
              assert_redirected_to eval(url, self.send(:binding), __FILE__, __LINE__)              
            end
            
          end
        end
      end

      
    end
  end
end