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

  // The default ordering is INSERTION unless otherwise specified.
  @Test
  public void edgeOrder_default() {
    MutableNetwork<Integer, String> network = NetworkBuilder.directed().build();

    addEdges(network);

    assertThat(network.edgeOrder()).isEqualTo(ElementOrder.insertion());