@Test
  public void test8BytesFlags() {
    Directory dir = new RAMDirectory();
    List<FlagEncoder> list = new ArrayList<FlagEncoder>();
    list.add(new TmpCarFlagEncoder(29, 0.001));
    list.add(new TmpCarFlagEncoder(29, 0.001));
    EncodingManager manager = new EncodingManager(list, 8, 0);
    graph = new GraphHopperStorage(dir, manager, false).create(defaultSize);

    EdgeIteratorState edge = graph.edge(0, 1);
    edge.setFlags(Long.MAX_VALUE / 3);
    // System.out.println(BitUtil.LITTLE.toBitString(Long.MAX_VALUE / 3) + "\n" +
    // BitUtil.LITTLE.toBitString(edge.getFlags()));
    assertEquals(Long.MAX_VALUE / 3, edge.getFlags());
    graph.close();

    graph = new GraphHopperStorage(dir, manager, false).create(defaultSize);

    edge = graph.edge(0, 1);
    edge.setFlags(list.get(0).setProperties(99.123, true, true));
    assertEquals(99.123, list.get(0).getSpeed(edge.getFlags()), 1e-3);
    long flags = GHUtility.getEdge(graph, 1, 0).getFlags();
    assertEquals(99.123, list.get(0).getSpeed(flags), 1e-3);
    assertTrue(list.get(0).isBool(flags, FlagEncoder.K_FORWARD));
    assertTrue(list.get(0).isBool(flags, FlagEncoder.K_BACKWARD));
    edge = graph.edge(2, 3);
    edge.setFlags(list.get(1).setProperties(44.123, true, false));
    assertEquals(44.123, list.get(1).getSpeed(edge.getFlags()), 1e-3);
    flags = GHUtility.getEdge(graph, 3, 2).getFlags();
    assertEquals(44.123, list.get(1).getSpeed(flags), 1e-3);
    assertTrue(list.get(1).isBool(flags, FlagEncoder.K_FORWARD));
    assertFalse(list.get(1).isBool(flags, FlagEncoder.K_BACKWARD));
  }
  @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 testCreateDuplicateEdges() {
    graph = createGraph();
    graph.edge(2, 1, 12, true);
    graph.edge(2, 3, 12, true);
    graph.edge(2, 3, 13, false);
    assertEquals(3, GHUtility.count(carOutExplorer.setBaseNode(2)));

    // no exception
    graph.getEdgeProps(1, 3);

    // raise exception
    try {
      graph.getEdgeProps(4, 3);
      assertTrue(false);
    } catch (Exception ex) {
    }
    try {
      graph.getEdgeProps(-1, 3);
      assertTrue(false);
    } catch (Exception ex) {
    }

    EdgeIterator iter = carOutExplorer.setBaseNode(2);
    assertTrue(iter.next());
    EdgeIteratorState oneIter = graph.getEdgeProps(iter.getEdge(), 3);
    assertEquals(13, oneIter.getDistance(), 1e-6);
    assertEquals(2, oneIter.getBaseNode());
    assertTrue(carEncoder.isBool(oneIter.getFlags(), FlagEncoder.K_FORWARD));
    assertFalse(carEncoder.isBool(oneIter.getFlags(), FlagEncoder.K_BACKWARD));

    oneIter = graph.getEdgeProps(iter.getEdge(), 2);
    assertEquals(13, oneIter.getDistance(), 1e-6);
    assertEquals(3, oneIter.getBaseNode());
    assertFalse(carEncoder.isBool(oneIter.getFlags(), FlagEncoder.K_FORWARD));
    assertTrue(carEncoder.isBool(oneIter.getFlags(), FlagEncoder.K_BACKWARD));

    graph.edge(3, 2, 14, true);
    assertEquals(4, GHUtility.count(carOutExplorer.setBaseNode(2)));
  }
  @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());
  }