@Test
public void testSort2()
{

    Graph g = initUnsorted(createGraph());
    Graph newG = GHUtility.sortDFS(g, createGraph());
    assertEquals(g.getNodes(), newG.getNodes());
    NodeAccess na = newG.getNodeAccess();
    assertEquals(0, na.getLatitude(0), 1e-4); // 0
    assertEquals(2.5, na.getLatitude(1), 1e-4); // 1
    assertEquals(4.5, na.getLatitude(2), 1e-4); // 2
    assertEquals(4.6, na.getLatitude(3), 1e-4); // 8        
}