class Shoulda::Matchers::Doublespeak::Double

def restore_original_method
  original_method = world.original_method_for(klass, method_name)
  klass.__send__(:remove_method, method_name)
  klass.__send__(:define_method, method_name) do |*args, &block|
    original_method.bind(self).call(*args, &block)
  end
end