def assert_have_no_selector(name, attributes = {}, &block)
      matcher = HaveSelector.new(name, attributes, &block)
      assert !matcher.matches?(response_body), matcher.negative_failure_message
    end
def assert_have_no_selector(name, attributes = {}, &block)
      matcher = HaveSelector.new(name, attributes, &block)
      assert !matcher.matches?(response_body), matcher.negative_failure_message
    end
Asserts that the body of the response
 does not contain the supplied string or regepx