@Test
  public void testSimpleDelete() {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    na.setNode(0, 12, 23);
    na.setNode(1, 38.33f, 135.3f);
    na.setNode(2, 3, 3);
    na.setNode(3, 78, 89);

    graph.edge(3, 0, 21, true);
    graph.edge(5, 0, 22, true);
    graph.edge(5, 3, 23, true);

    graph.markNodeRemoved(0);
    graph.markNodeRemoved(3);

    assertEquals(6, graph.getNodes());
    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    // now actually perform deletion
    graph.optimize();

    assertEquals(4, graph.getNodes());
    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));
    // shouldn't change anything
    graph.optimize();
    assertEquals(4, graph.getNodes());
    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));
  }
  @Test
  public void testGetAllEdgesWithDelete() {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    na.setNode(0, 0, 5);
    na.setNode(1, 1, 5);
    na.setNode(2, 2, 5);
    na.setNode(3, 3, 5);
    graph.edge(0, 1, 1, true);
    graph.edge(0, 2, 1, true);
    graph.edge(1, 2, 1, true);
    graph.edge(2, 3, 1, true);
    AllEdgesIterator iter = graph.getAllEdges();
    assertEquals(4, GHUtility.count(iter));
    assertEquals(4, iter.getMaxId());

    // delete
    graph.markNodeRemoved(1);
    graph.optimize();
    iter = graph.getAllEdges();
    assertEquals(2, GHUtility.count(iter));
    assertEquals(4, iter.getMaxId());

    iter = graph.getAllEdges();
    iter.next();
    EdgeIteratorState eState = iter.detach(false);
    assertEquals(iter.toString(), eState.toString());
    iter.next();
    assertNotEquals(iter.toString(), eState.toString());

    EdgeIteratorState eState2 = iter.detach(true);
    assertEquals(iter.getAdjNode(), eState2.getBaseNode());
    iter.next();
    assertNotEquals(iter.getAdjNode(), eState2.getBaseNode());
  }
  @Test
  public void testSimpleDelete3() {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    na.setNode(7, 7, 1);
    na.setNode(8, 8, 1);
    na.setNode(9, 9, 1);
    na.setNode(11, 11, 1);

    // mini subnetwork which gets completely removed:
    graph.edge(5, 10, 510, true);
    graph.markNodeRemoved(3);
    graph.markNodeRemoved(4);
    graph.markNodeRemoved(5);
    graph.markNodeRemoved(10);

    graph.edge(9, 11, 911, true);
    graph.edge(7, 9, 78, true);
    graph.edge(8, 9, 89, true);

    // perform deletion
    graph.optimize();

    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    assertEquals(3, GHUtility.count(carAllExplorer.setBaseNode(getIdOf(graph, 9))));
    assertEquals(1, GHUtility.count(carAllExplorer.setBaseNode(getIdOf(graph, 7))));
    assertEquals(1, GHUtility.count(carAllExplorer.setBaseNode(getIdOf(graph, 8))));
    assertEquals(1, GHUtility.count(carAllExplorer.setBaseNode(getIdOf(graph, 11))));
  }
  @Test
  public void testDeleteNodeForUnidir() {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    na.setNode(10, 10, 1);
    na.setNode(6, 6, 1);
    na.setNode(20, 20, 1);
    na.setNode(21, 21, 1);

    graph.edge(10, 20, 10, false);
    graph.edge(21, 6, 10, false);

    graph.markNodeRemoved(0);
    graph.markNodeRemoved(7);
    assertEquals(22, graph.getNodes());
    graph.optimize();
    assertEquals(20, graph.getNodes());

    assertEquals(1, GHUtility.count(carInExplorer.setBaseNode(getIdOf(graph, 20))));
    assertEquals(0, GHUtility.count(carOutExplorer.setBaseNode(getIdOf(graph, 20))));

    assertEquals(1, GHUtility.count(carOutExplorer.setBaseNode(getIdOf(graph, 10))));
    assertEquals(0, GHUtility.count(carInExplorer.setBaseNode(getIdOf(graph, 10))));

    assertEquals(1, GHUtility.count(carInExplorer.setBaseNode(getIdOf(graph, 6))));
    assertEquals(0, GHUtility.count(carOutExplorer.setBaseNode(getIdOf(graph, 6))));

    assertEquals(1, GHUtility.count(carOutExplorer.setBaseNode(getIdOf(graph, 21))));
    assertEquals(0, GHUtility.count(carInExplorer.setBaseNode(getIdOf(graph, 21))));
  }
 @Test
 public void testDeleteAndOptimize() {
   graph = createGraph();
   NodeAccess na = graph.getNodeAccess();
   na.setNode(20, 10, 10);
   na.setNode(21, 10, 11);
   graph.markNodeRemoved(20);
   graph.optimize();
   assertEquals(11, na.getLongitude(20), 1e-5);
 }
  public void testDeleteNodes(int fillToSize) {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    na.setNode(0, 12, 23);
    na.setNode(1, 38.33f, 135.3f);
    na.setNode(2, 3, 3);
    na.setNode(3, 78, 89);
    na.setNode(4, 2, 1);
    na.setNode(5, 2.5f, 1);

    int deleted = 2;
    for (int i = 6; i < fillToSize; i++) {
      na.setNode(i, i * 1.5, i * 1.6);
      if (i % 3 == 0) {
        graph.markNodeRemoved(i);
        deleted++;
      } else {
        // connect to
        // ... a deleted node
        graph.edge(i, 0, 10 * i, true);
        // ... a non-deleted and non-moved node
        graph.edge(i, 2, 10 * i, true);
        // ... a moved node
        graph.edge(i, fillToSize - 1, 10 * i, true);
      }
    }

    graph.edge(0, 1, 10, true);
    graph.edge(0, 3, 20, false);
    graph.edge(3, 5, 20, true);
    graph.edge(1, 5, 20, false);

    graph.markNodeRemoved(0);
    graph.markNodeRemoved(2);
    // no deletion happend
    assertEquals(fillToSize, graph.getNodes());

    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    // now actually perform deletion
    graph.optimize();

    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    assertEquals(fillToSize - deleted, graph.getNodes());
    int id1 = getIdOf(graph, 38.33f);
    assertEquals(135.3f, na.getLongitude(id1), 1e-4);
    assertTrue(containsLatitude(graph, carAllExplorer.setBaseNode(id1), 2.5));
    assertFalse(containsLatitude(graph, carAllExplorer.setBaseNode(id1), 12));

    int id3 = getIdOf(graph, 78);
    assertEquals(89, na.getLongitude(id3), 1e-4);
    assertTrue(containsLatitude(graph, carAllExplorer.setBaseNode(id3), 2.5));
    assertFalse(containsLatitude(graph, carAllExplorer.setBaseNode(id3), 12));
  }
  @Test
  public void testSimpleDelete2() {
    graph = createGraph();
    NodeAccess na = graph.getNodeAccess();
    assertEquals(-1, getIdOf(graph, 12));
    na.setNode(9, 9, 1);
    assertEquals(-1, getIdOf(graph, 12));

    na.setNode(11, 11, 1);
    na.setNode(12, 12, 1);

    // mini subnetwork which gets completely removed:
    graph.edge(5, 10, 510, true);
    graph.markNodeRemoved(5);
    graph.markNodeRemoved(10);

    PointList pl = new PointList();
    pl.add(1, 2, Double.NaN);
    pl.add(1, 3, Double.NaN);
    graph.edge(9, 11, 911, true).setWayGeometry(pl);
    graph.edge(9, 12, 912, true).setWayGeometry(pl);

    assertEquals(13, graph.getNodes());
    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    // perform deletion
    graph.optimize();

    assertEquals(11, graph.getNodes());
    assertEquals(Arrays.<String>asList(), GHUtility.getProblems(graph));

    int id11 = getIdOf(graph, 11); // is now 10
    int id12 = getIdOf(graph, 12); // is now 5
    int id9 = getIdOf(graph, 9); // is now 9
    assertEquals(
        GHUtility.asSet(id12, id11), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id9)));
    assertEquals(GHUtility.asSet(id9), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id11)));
    assertEquals(GHUtility.asSet(id9), GHUtility.getNeighbors(carAllExplorer.setBaseNode(id12)));

    EdgeIterator iter = carAllExplorer.setBaseNode(id9);
    assertTrue(iter.next());
    assertEquals(id12, iter.getAdjNode());
    assertEquals(2, iter.fetchWayGeometry(0).getLongitude(0), 1e-7);

    assertTrue(iter.next());
    assertEquals(id11, iter.getAdjNode());
    assertEquals(2, iter.fetchWayGeometry(0).getLongitude(0), 1e-7);
  }
  @Test
  public void testEdgeProperties() {
    graph = createGraph();
    EdgeIteratorState iter1 = graph.edge(0, 1, 10, true);
    EdgeIteratorState iter2 = graph.edge(0, 2, 20, true);

    int edgeId = iter1.getEdge();
    EdgeIteratorState iter = graph.getEdgeProps(edgeId, 0);
    assertEquals(10, iter.getDistance(), 1e-5);

    edgeId = iter2.getEdge();
    iter = graph.getEdgeProps(edgeId, 0);
    assertEquals(2, iter.getBaseNode());
    assertEquals(0, iter.getAdjNode());
    assertEquals(20, iter.getDistance(), 1e-5);

    iter = graph.getEdgeProps(edgeId, 2);
    assertEquals(0, iter.getBaseNode());
    assertEquals(2, iter.getAdjNode());
    assertEquals(20, iter.getDistance(), 1e-5);

    iter = graph.getEdgeProps(edgeId, Integer.MIN_VALUE);
    assertFalse(iter == null);
    assertEquals(0, iter.getBaseNode());
    assertEquals(2, iter.getAdjNode());
    iter = graph.getEdgeProps(edgeId, 1);
    assertTrue(iter == null);

    // delete
    graph.markNodeRemoved(1);
    graph.optimize();

    // throw exception if accessing deleted edge
    try {
      graph.getEdgeProps(iter1.getEdge(), -1);
      assertTrue(false);
    } catch (Exception ex) {
    }
  }