You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: mark_discounts_as_redeemed_test.rb
    path of file: ./repos/workarea/core/test/workers/workarea
    
    the code of the file until where you have to start completion: require 'test_helper'

module Worka
    
    def test_touching_the_discount
      current_value = @product_discount.updated_at
      travel_to(Time.current + 1.second)
      MarkDiscountsAsRedeemed.new.mark_redeemed(@order, [@shipping])
      @product_discount.reload

      assert_not_equal(current_value, @product_discount.updated_at)
    end