}

  // Node/edge sets and node/edge connections are the same, but edge order differs.
  // In this case the graphs are considered equivalent; the edge add orderings are irrelevant.
  @Test
  public void equivalent_edgeAddOrdersDiffer() {
    GraphBuilder<Integer> builder = GraphBuilder.from(graph);
    MutableGraph<Integer> g1 = builder.build();
    MutableGraph<Integer> g2 = builder.build();

    // for g1, add 1->2 first, then 3->1