COIN-OR::LEMON - Graph Library

source: lemon-1.2/test/graph_test.cc @ 336:052cecabcb71

Last change on this file since 336:052cecabcb71 was 336:052cecabcb71, checked in by Peter Kovacs <kpeter@…>, 11 years ago

Fixes and improvements related to GridGraph?

File size: 7.8 KB
Line 
1/* -*- mode: C++; indent-tabs-mode: nil; -*-
2 *
3 * This file is a part of LEMON, a generic C++ optimization library.
4 *
5 * Copyright (C) 2003-2008
6 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7 * (Egervary Research Group on Combinatorial Optimization, EGRES).
8 *
9 * Permission to use, modify and distribute this software is granted
10 * provided that this copyright notice appears in all copies. For
11 * precise terms see the accompanying LICENSE file.
12 *
13 * This software is provided "AS IS" with no warranty of any kind,
14 * express or implied, and with no claim as to its suitability for any
15 * purpose.
16 *
17 */
18
19#include <lemon/concepts/graph.h>
20#include <lemon/list_graph.h>
21#include <lemon/smart_graph.h>
22// #include <lemon/full_graph.h>
23#include <lemon/grid_graph.h>
24
25#include "test_tools.h"
26#include "graph_test.h"
27
28using namespace lemon;
29using namespace lemon::concepts;
30
31template <class Graph>
32void checkGraph() {
33  TEMPLATE_GRAPH_TYPEDEFS(Graph);
34
35  Graph G;
36  checkGraphNodeList(G, 0);
37  checkGraphEdgeList(G, 0);
38
39  Node
40    n1 = G.addNode(),
41    n2 = G.addNode(),
42    n3 = G.addNode();
43  checkGraphNodeList(G, 3);
44  checkGraphEdgeList(G, 0);
45
46  Edge e1 = G.addEdge(n1, n2);
47  check((G.u(e1) == n1 && G.v(e1) == n2) || (G.u(e1) == n2 && G.v(e1) == n1),
48        "Wrong edge");
49  checkGraphNodeList(G, 3);
50  checkGraphArcList(G, 2);
51  checkGraphEdgeList(G, 1);
52
53  checkGraphOutArcList(G, n1, 1);
54  checkGraphOutArcList(G, n2, 1);
55  checkGraphOutArcList(G, n3, 0);
56
57  checkGraphInArcList(G, n1, 1);
58  checkGraphInArcList(G, n2, 1);
59  checkGraphInArcList(G, n3, 0);
60
61  checkGraphIncEdgeList(G, n1, 1);
62  checkGraphIncEdgeList(G, n2, 1);
63  checkGraphIncEdgeList(G, n3, 0);
64
65  checkGraphConArcList(G, 2);
66  checkGraphConEdgeList(G, 1);
67
68  Edge e2 = G.addEdge(n2, n1), e3 = G.addEdge(n2, n3);
69  checkGraphNodeList(G, 3);
70  checkGraphArcList(G, 6);
71  checkGraphEdgeList(G, 3);
72
73  checkGraphOutArcList(G, n1, 2);
74  checkGraphOutArcList(G, n2, 3);
75  checkGraphOutArcList(G, n3, 1);
76
77  checkGraphInArcList(G, n1, 2);
78  checkGraphInArcList(G, n2, 3);
79  checkGraphInArcList(G, n3, 1);
80
81  checkGraphIncEdgeList(G, n1, 2);
82  checkGraphIncEdgeList(G, n2, 3);
83  checkGraphIncEdgeList(G, n3, 1);
84
85  checkGraphConArcList(G, 6);
86  checkGraphConEdgeList(G, 3);
87
88  checkArcDirections(G);
89
90  checkNodeIds(G);
91  checkArcIds(G);
92  checkEdgeIds(G);
93  checkGraphNodeMap(G);
94  checkGraphArcMap(G);
95  checkGraphEdgeMap(G);
96}
97
98void checkConcepts() {
99  { // Checking graph components
100    checkConcept<BaseGraphComponent, BaseGraphComponent >();
101
102    checkConcept<IDableGraphComponent<>,
103      IDableGraphComponent<> >();
104
105    checkConcept<IterableGraphComponent<>,
106      IterableGraphComponent<> >();
107
108    checkConcept<MappableGraphComponent<>,
109      MappableGraphComponent<> >();
110  }
111  { // Checking skeleton graph
112    checkConcept<Graph, Graph>();
113  }
114  { // Checking ListGraph
115    checkConcept<Graph, ListGraph>();
116    checkConcept<AlterableGraphComponent<>, ListGraph>();
117    checkConcept<ExtendableGraphComponent<>, ListGraph>();
118    checkConcept<ClearableGraphComponent<>, ListGraph>();
119    checkConcept<ErasableGraphComponent<>, ListGraph>();
120  }
121  { // Checking SmartGraph
122    checkConcept<Graph, SmartGraph>();
123    checkConcept<AlterableGraphComponent<>, SmartGraph>();
124    checkConcept<ExtendableGraphComponent<>, SmartGraph>();
125    checkConcept<ClearableGraphComponent<>, SmartGraph>();
126  }
127//  { // Checking FullGraph
128//    checkConcept<Graph, FullGraph>();
129//    checkGraphIterators<FullGraph>();
130//  }
131  { // Checking GridGraph
132    checkConcept<Graph, GridGraph>();
133  }
134}
135
136template <typename Graph>
137void checkGraphValidity() {
138  TEMPLATE_GRAPH_TYPEDEFS(Graph);
139  Graph g;
140
141  Node
142    n1 = g.addNode(),
143    n2 = g.addNode(),
144    n3 = g.addNode();
145
146  Edge
147    e1 = g.addEdge(n1, n2),
148    e2 = g.addEdge(n2, n3);
149
150  check(g.valid(n1), "Wrong validity check");
151  check(g.valid(e1), "Wrong validity check");
152  check(g.valid(g.direct(e1, true)), "Wrong validity check");
153
154  check(!g.valid(g.nodeFromId(-1)), "Wrong validity check");
155  check(!g.valid(g.edgeFromId(-1)), "Wrong validity check");
156  check(!g.valid(g.arcFromId(-1)), "Wrong validity check");
157}
158
159template <typename Graph>
160void checkGraphValidityErase() {
161  TEMPLATE_GRAPH_TYPEDEFS(Graph);
162  Graph g;
163
164  Node
165    n1 = g.addNode(),
166    n2 = g.addNode(),
167    n3 = g.addNode();
168
169  Edge
170    e1 = g.addEdge(n1, n2),
171    e2 = g.addEdge(n2, n3);
172
173  check(g.valid(n1), "Wrong validity check");
174  check(g.valid(e1), "Wrong validity check");
175  check(g.valid(g.direct(e1, true)), "Wrong validity check");
176
177  g.erase(n1);
178
179  check(!g.valid(n1), "Wrong validity check");
180  check(g.valid(n2), "Wrong validity check");
181  check(g.valid(n3), "Wrong validity check");
182  check(!g.valid(e1), "Wrong validity check");
183  check(g.valid(e2), "Wrong validity check");
184
185  check(!g.valid(g.nodeFromId(-1)), "Wrong validity check");
186  check(!g.valid(g.edgeFromId(-1)), "Wrong validity check");
187  check(!g.valid(g.arcFromId(-1)), "Wrong validity check");
188}
189
190void checkGridGraph(int width, int height) {
191  typedef GridGraph Graph;
192  GRAPH_TYPEDEFS(Graph);
193  Graph G(width, height);
194
195  check(G.width() == width, "Wrong column number");
196  check(G.height() == height, "Wrong row number");
197
198  for (int i = 0; i < width; ++i) {
199    for (int j = 0; j < height; ++j) {
200      check(G.col(G(i, j)) == i, "Wrong column");
201      check(G.row(G(i, j)) == j, "Wrong row");
202      check(G.pos(G(i, j)).x == i, "Wrong column");
203      check(G.pos(G(i, j)).y == j, "Wrong row");
204    }
205  }
206
207  for (int j = 0; j < height; ++j) {
208    for (int i = 0; i < width - 1; ++i) {
209      check(G.source(G.right(G(i, j))) == G(i, j), "Wrong right");
210      check(G.target(G.right(G(i, j))) == G(i + 1, j), "Wrong right");
211    }
212    check(G.right(G(width - 1, j)) == INVALID, "Wrong right");
213  }
214
215  for (int j = 0; j < height; ++j) {
216    for (int i = 1; i < width; ++i) {
217      check(G.source(G.left(G(i, j))) == G(i, j), "Wrong left");
218      check(G.target(G.left(G(i, j))) == G(i - 1, j), "Wrong left");
219    }
220    check(G.left(G(0, j)) == INVALID, "Wrong left");
221  }
222
223  for (int i = 0; i < width; ++i) {
224    for (int j = 0; j < height - 1; ++j) {
225      check(G.source(G.up(G(i, j))) == G(i, j), "Wrong up");
226      check(G.target(G.up(G(i, j))) == G(i, j + 1), "Wrong up");
227    }
228    check(G.up(G(i, height - 1)) == INVALID, "Wrong up");
229  }
230
231  for (int i = 0; i < width; ++i) {
232    for (int j = 1; j < height; ++j) {
233      check(G.source(G.down(G(i, j))) == G(i, j), "Wrong down");
234      check(G.target(G.down(G(i, j))) == G(i, j - 1), "Wrong down");
235    }
236    check(G.down(G(i, 0)) == INVALID, "Wrong down");
237  }
238
239  checkGraphNodeList(G, width * height);
240  checkGraphEdgeList(G, width * (height - 1) + (width - 1) * height);
241  checkGraphArcList(G, 2 * (width * (height - 1) + (width - 1) * height));
242
243  for (NodeIt n(G); n != INVALID; ++n) {
244    int nb = 4;
245    if (G.col(n) == 0) --nb;
246    if (G.col(n) == width - 1) --nb;
247    if (G.row(n) == 0) --nb;
248    if (G.row(n) == height - 1) --nb;
249
250    checkGraphOutArcList(G, n, nb);
251    checkGraphInArcList(G, n, nb);
252    checkGraphIncEdgeList(G, n, nb);
253  }
254
255  checkArcDirections(G);
256
257  checkGraphConArcList(G, 2 * (width * (height - 1) + (width - 1) * height));
258  checkGraphConEdgeList(G, width * (height - 1) + (width - 1) * height);
259
260  checkNodeIds(G);
261  checkArcIds(G);
262  checkEdgeIds(G);
263  checkGraphNodeMap(G);
264  checkGraphArcMap(G);
265  checkGraphEdgeMap(G);
266
267}
268
269void checkGraphs() {
270  { // Checking ListGraph
271    checkGraph<ListGraph>();
272    checkGraphValidityErase<ListGraph>();
273  }
274  { // Checking SmartGraph
275    checkGraph<SmartGraph>();
276    checkGraphValidity<SmartGraph>();
277  }
278//   { // Checking FullGraph
279//     FullGraph g(5);
280//     checkGraphNodeList(g, 5);
281//     checkGraphEdgeList(g, 10);
282//   }
283  { // Checking GridGraph
284    checkGridGraph(5, 8);
285    checkGridGraph(8, 5);
286    checkGridGraph(5, 5);
287    checkGridGraph(0, 0);
288    checkGridGraph(1, 1);
289  }
290}
291
292int main() {
293  checkConcepts();
294  checkGraphs();
295  return 0;
296}
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