protected void initExampleGraph(Graph g) {
   NodeAccess na = g.getNodeAccess();
   na.setNode(0, 12, 23);
   na.setNode(1, 38.33f, 135.3f);
   na.setNode(2, 6, 139);
   na.setNode(3, 78, 89);
   na.setNode(4, 2, 1);
   na.setNode(5, 7, 5);
   g.edge(0, 1, 12, true);
   g.edge(0, 2, 212, true);
   g.edge(0, 3, 212, true);
   g.edge(0, 4, 212, true);
   g.edge(0, 5, 212, true);
 }
  @Test
  public void testClone() {
    graph = createGraph();
    graph.edge(1, 2, 10, true);
    NodeAccess na = graph.getNodeAccess();
    na.setNode(0, 12, 23);
    na.setNode(1, 8, 13);
    na.setNode(2, 2, 10);
    na.setNode(3, 5, 9);
    graph.edge(1, 3, 10, true);

    Graph clone = graph.copyTo(createGraph(locationParent + "/clone", false));
    assertEquals(graph.getNodes(), clone.getNodes());
    assertEquals(
        count(carOutExplorer.setBaseNode(1)),
        count(clone.createEdgeExplorer(carOutFilter).setBaseNode(1)));
    clone.edge(1, 4, 10, true);
    assertEquals(3, count(clone.createEdgeExplorer(carOutFilter).setBaseNode(1)));
    assertEquals(graph.getBounds(), clone.getBounds());
    Helper.close((Closeable) clone);
  }