How to stub and return module in functionaltetsing

Hi friends,
I need to mock/stub resultset = Search::Dataload.check_data_users({:a => 'ds',:d => '22'}) in below code.I need to stop execute this method while running testcases for this controller.i need to stub that line of code and return expected result set withouth executing that
resultset is type of HASH
class MyDatacontroller < Authcontroller
    def check_data
          resultset = Search::Dataload.check_data_users({:a => 'ds',:d => '22'})
     end
end

In lib search.rb
module Search
class Dataload
      def self.check_data_users(options)
              ..............
            ........................
      end
end
end