assertThat(network.nodeOrder()).isEqualTo(ElementOrder.insertion()); // default
  }

  // Combined node and edge order tests

  @Test
  public void nodeOrderUnorderedAndEdgesSorted() {
    MutableNetwork<Integer, String> network =
        NetworkBuilder.directed()
            .nodeOrder(unordered())
            .edgeOrder(ElementOrder.sorted(Ordering.<String>natural().reverse()))