it "returns proposals ordered by cached_votes_up" do
      proposal1 = create(:proposal, cached_votes_up: 1,  tag_list: "Sport")
      proposal2 = create(:proposal, cached_votes_up: 5,  tag_list: "Sport")
      proposal3 = create(:proposal, cached_votes_up: 10, tag_list: "Sport")
      proposal4 = create(:proposal, tag_list: "Sport")