     end
   end
 
-  describe ".set_error/3, with a badarg" do
+  describe ".add_error/4, with a badarg" do
     setup :create_root_span
 
     setup %{span: span} do

    end
  end

  describe ".set_error/3, with a nil span" do
    setup do
      return =
        try do

    end
  end

  describe ".add_error/4" do
    setup :create_root_span

    setup %{span: span} do
