       assert Floki.traverse_and_update(html, fn
                {"span", _attrs, _children} -> nil
                tag -> tag
-             end) ==
-               {"div", [], []}
+             end) == {"div", [], []}
     end
 
     test "with div,p and identity function returns div,p" do


      assert Floki.traverse_and_update(html, fn {"div", attrs, children} ->
               {"p", attrs, children}
             end) ==
               {"p", [], ["hello"]}
    end

    test "with style attribute and style->src function returns src attribute" do


      assert Floki.traverse_and_update(html, fn {elem, attrs, _children} ->
               {elem, attrs, ["world"]}
             end) == {"div", [], ["world"]}
    end

    test "with div->span and span deleter function returns div without span" do
