       %{author: Factory.build(:user, %{updated_at: other_date})},
     ]
 
-    assert etag(post) == etag(post)
     for change <- changes do
       new_post = Map.merge(post, change)
-      assert etag(post) != etag(new_post)
+      refute etag(post) == etag(new_post)
     end
   end
 

      %{promotionals: [%{}, %{}, %{}]}
    ]

    assert etag(category) == etag(category)
    for change <- changes do
      new_category = Map.merge(category, change)
      assert etag(category) != etag(new_category)
    end
  end


      %{relationship_to_current_user: nil},
    ]

    for change <- changes do
      new_user = Map.merge(user, change)
      refute etag(user) == etag(new_user)
    end
  end

