@Test
  public void testCopyProperties() {
    graph = createGraph();
    EdgeIteratorState edge =
        graph.edge(1, 3, 10, false).setName("testing").setWayGeometry(Helper.createPointList(1, 2));

    EdgeIteratorState newEdge = graph.edge(1, 3, 10, false);
    edge.copyPropertiesTo(newEdge);
    assertEquals(edge.getName(), newEdge.getName());
    assertEquals(edge.getDistance(), newEdge.getDistance(), 1e-7);
    assertEquals(edge.getFlags(), newEdge.getFlags());
    assertEquals(edge.fetchWayGeometry(0), newEdge.fetchWayGeometry(0));
  }
  @Test
  public void testDetachEdge() {
    graph = createGraph();
    graph.edge(0, 1, 2, true);
    long flags = carEncoder.setProperties(10, true, false);
    graph.edge(0, 2, 2, true).setWayGeometry(Helper.createPointList(1, 2, 3, 4)).setFlags(flags);
    graph.edge(1, 2, 2, true);

    EdgeIterator iter = graph.createEdgeExplorer().setBaseNode(0);
    try {
      // currently not possible to detach without next, without introducing a new property inside
      // EdgeIterable
      iter.detach(false);
      assertTrue(false);
    } catch (Exception ex) {
    }

    iter.next();
    EdgeIteratorState edgeState2 = iter.detach(false);
    assertEquals(2, iter.getAdjNode());
    assertEquals(1, edgeState2.fetchWayGeometry(0).getLatitude(0), 1e-1);
    assertEquals(2, edgeState2.getAdjNode());
    assertTrue(carEncoder.isBool(edgeState2.getFlags(), FlagEncoder.K_FORWARD));

    EdgeIteratorState edgeState3 = iter.detach(true);
    assertEquals(0, edgeState3.getAdjNode());
    assertEquals(2, edgeState3.getBaseNode());
    assertEquals(3, edgeState3.fetchWayGeometry(0).getLatitude(0), 1e-1);
    assertFalse(carEncoder.isBool(edgeState3.getFlags(), FlagEncoder.K_FORWARD));
    assertEquals(GHUtility.getEdge(graph, 0, 2).getFlags(), edgeState2.getFlags());
    assertEquals(GHUtility.getEdge(graph, 2, 0).getFlags(), edgeState3.getFlags());

    iter.next();
    assertEquals(1, iter.getAdjNode());
    assertEquals(2, edgeState2.getAdjNode());
    assertEquals(2, edgeState3.getBaseNode());

    assertEquals(0, iter.fetchWayGeometry(0).size());
    assertEquals(1, edgeState2.fetchWayGeometry(0).getLatitude(0), 1e-1);
    assertEquals(3, edgeState3.fetchWayGeometry(0).getLatitude(0), 1e-1);

    // #162 a directed self referencing edge should be able to reverse its state too
    graph.edge(3, 3, 2, true).setFlags(flags);
    EdgeIterator iter2 = graph.createEdgeExplorer().setBaseNode(3);
    iter2.next();
    assertEquals(edgeState2.getFlags(), iter2.detach(false).getFlags());
    assertEquals(edgeState3.getFlags(), iter2.detach(true).getFlags());
  }