test/graph_test.cc
author Alpar Juttner <alpar@cs.elte.hu>
Mon, 08 Aug 2011 00:00:00 +0200
branch1.0
changeset 429 351009ebb624
parent 228 b6732e0d38c5
permissions -rw-r--r--
Release series 1.0.x has reached its end of life.
     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 
    28 using namespace lemon;
    29 using namespace lemon::concepts;
    30 
    31 template <class Graph>
    32 void checkGraphBuild() {
    33   TEMPLATE_GRAPH_TYPEDEFS(Graph);
    34 
    35   Graph G;
    36   checkGraphNodeList(G, 0);
    37   checkGraphEdgeList(G, 0);
    38   checkGraphArcList(G, 0);
    39 
    40   Node
    41     n1 = G.addNode(),
    42     n2 = G.addNode(),
    43     n3 = G.addNode();
    44   checkGraphNodeList(G, 3);
    45   checkGraphEdgeList(G, 0);
    46   checkGraphArcList(G, 0);
    47 
    48   Edge e1 = G.addEdge(n1, n2);
    49   check((G.u(e1) == n1 && G.v(e1) == n2) || (G.u(e1) == n2 && G.v(e1) == n1),
    50         "Wrong edge");
    51 
    52   checkGraphNodeList(G, 3);
    53   checkGraphEdgeList(G, 1);
    54   checkGraphArcList(G, 2);
    55 
    56   checkGraphIncEdgeArcLists(G, n1, 1);
    57   checkGraphIncEdgeArcLists(G, n2, 1);
    58   checkGraphIncEdgeArcLists(G, n3, 0);
    59 
    60   checkGraphConEdgeList(G, 1);
    61   checkGraphConArcList(G, 2);
    62 
    63   Edge e2 = G.addEdge(n2, n1),
    64        e3 = G.addEdge(n2, n3);
    65 
    66   checkGraphNodeList(G, 3);
    67   checkGraphEdgeList(G, 3);
    68   checkGraphArcList(G, 6);
    69 
    70   checkGraphIncEdgeArcLists(G, n1, 2);
    71   checkGraphIncEdgeArcLists(G, n2, 3);
    72   checkGraphIncEdgeArcLists(G, n3, 1);
    73 
    74   checkGraphConEdgeList(G, 3);
    75   checkGraphConArcList(G, 6);
    76 
    77   checkArcDirections(G);
    78 
    79   checkNodeIds(G);
    80   checkArcIds(G);
    81   checkEdgeIds(G);
    82   checkGraphNodeMap(G);
    83   checkGraphArcMap(G);
    84   checkGraphEdgeMap(G);
    85 }
    86 
    87 template <class Graph>
    88 void checkGraphAlter() {
    89   TEMPLATE_GRAPH_TYPEDEFS(Graph);
    90 
    91   Graph G;
    92   Node n1 = G.addNode(), n2 = G.addNode(),
    93        n3 = G.addNode(), n4 = G.addNode();
    94   Edge e1 = G.addEdge(n1, n2), e2 = G.addEdge(n2, n1),
    95        e3 = G.addEdge(n2, n3), e4 = G.addEdge(n1, n4),
    96        e5 = G.addEdge(n4, n3);
    97 
    98   checkGraphNodeList(G, 4);
    99   checkGraphEdgeList(G, 5);
   100   checkGraphArcList(G, 10);
   101 
   102   // Check changeU() and changeV()
   103   if (G.u(e2) == n2) {
   104     G.changeU(e2, n3);
   105   } else {
   106     G.changeV(e2, n3);
   107   }
   108 
   109   checkGraphNodeList(G, 4);
   110   checkGraphEdgeList(G, 5);
   111   checkGraphArcList(G, 10);
   112 
   113   checkGraphIncEdgeArcLists(G, n1, 3);
   114   checkGraphIncEdgeArcLists(G, n2, 2);
   115   checkGraphIncEdgeArcLists(G, n3, 3);
   116   checkGraphIncEdgeArcLists(G, n4, 2);
   117 
   118   checkGraphConEdgeList(G, 5);
   119   checkGraphConArcList(G, 10);
   120 
   121   if (G.u(e2) == n1) {
   122     G.changeU(e2, n2);
   123   } else {
   124     G.changeV(e2, n2);
   125   }
   126 
   127   checkGraphNodeList(G, 4);
   128   checkGraphEdgeList(G, 5);
   129   checkGraphArcList(G, 10);
   130 
   131   checkGraphIncEdgeArcLists(G, n1, 2);
   132   checkGraphIncEdgeArcLists(G, n2, 3);
   133   checkGraphIncEdgeArcLists(G, n3, 3);
   134   checkGraphIncEdgeArcLists(G, n4, 2);
   135 
   136   checkGraphConEdgeList(G, 5);
   137   checkGraphConArcList(G, 10);
   138 
   139   // Check contract()
   140   G.contract(n1, n4, false);
   141 
   142   checkGraphNodeList(G, 3);
   143   checkGraphEdgeList(G, 5);
   144   checkGraphArcList(G, 10);
   145 
   146   checkGraphIncEdgeArcLists(G, n1, 4);
   147   checkGraphIncEdgeArcLists(G, n2, 3);
   148   checkGraphIncEdgeArcLists(G, n3, 3);
   149 
   150   checkGraphConEdgeList(G, 5);
   151   checkGraphConArcList(G, 10);
   152 
   153   G.contract(n2, n3);
   154 
   155   checkGraphNodeList(G, 2);
   156   checkGraphEdgeList(G, 3);
   157   checkGraphArcList(G, 6);
   158 
   159   checkGraphIncEdgeArcLists(G, n1, 4);
   160   checkGraphIncEdgeArcLists(G, n2, 2);
   161 
   162   checkGraphConEdgeList(G, 3);
   163   checkGraphConArcList(G, 6);
   164 }
   165 
   166 template <class Graph>
   167 void checkGraphErase() {
   168   TEMPLATE_GRAPH_TYPEDEFS(Graph);
   169 
   170   Graph G;
   171   Node n1 = G.addNode(), n2 = G.addNode(),
   172        n3 = G.addNode(), n4 = G.addNode();
   173   Edge e1 = G.addEdge(n1, n2), e2 = G.addEdge(n2, n1),
   174        e3 = G.addEdge(n2, n3), e4 = G.addEdge(n1, n4),
   175        e5 = G.addEdge(n4, n3);
   176 
   177   // Check edge deletion
   178   G.erase(e2);
   179 
   180   checkGraphNodeList(G, 4);
   181   checkGraphEdgeList(G, 4);
   182   checkGraphArcList(G, 8);
   183 
   184   checkGraphIncEdgeArcLists(G, n1, 2);
   185   checkGraphIncEdgeArcLists(G, n2, 2);
   186   checkGraphIncEdgeArcLists(G, n3, 2);
   187   checkGraphIncEdgeArcLists(G, n4, 2);
   188 
   189   checkGraphConEdgeList(G, 4);
   190   checkGraphConArcList(G, 8);
   191 
   192   // Check node deletion
   193   G.erase(n3);
   194 
   195   checkGraphNodeList(G, 3);
   196   checkGraphEdgeList(G, 2);
   197   checkGraphArcList(G, 4);
   198 
   199   checkGraphIncEdgeArcLists(G, n1, 2);
   200   checkGraphIncEdgeArcLists(G, n2, 1);
   201   checkGraphIncEdgeArcLists(G, n4, 1);
   202 
   203   checkGraphConEdgeList(G, 2);
   204   checkGraphConArcList(G, 4);
   205 }
   206 
   207 
   208 template <class Graph>
   209 void checkGraphSnapshot() {
   210   TEMPLATE_GRAPH_TYPEDEFS(Graph);
   211 
   212   Graph G;
   213   Node n1 = G.addNode(), n2 = G.addNode(), n3 = G.addNode();
   214   Edge e1 = G.addEdge(n1, n2), e2 = G.addEdge(n2, n1),
   215        e3 = G.addEdge(n2, n3);
   216 
   217   checkGraphNodeList(G, 3);
   218   checkGraphEdgeList(G, 3);
   219   checkGraphArcList(G, 6);
   220 
   221   typename Graph::Snapshot snapshot(G);
   222 
   223   Node n = G.addNode();
   224   G.addEdge(n3, n);
   225   G.addEdge(n, n3);
   226   G.addEdge(n3, n2);
   227 
   228   checkGraphNodeList(G, 4);
   229   checkGraphEdgeList(G, 6);
   230   checkGraphArcList(G, 12);
   231 
   232   snapshot.restore();
   233 
   234   checkGraphNodeList(G, 3);
   235   checkGraphEdgeList(G, 3);
   236   checkGraphArcList(G, 6);
   237 
   238   checkGraphIncEdgeArcLists(G, n1, 2);
   239   checkGraphIncEdgeArcLists(G, n2, 3);
   240   checkGraphIncEdgeArcLists(G, n3, 1);
   241 
   242   checkGraphConEdgeList(G, 3);
   243   checkGraphConArcList(G, 6);
   244 
   245   checkNodeIds(G);
   246   checkEdgeIds(G);
   247   checkArcIds(G);
   248   checkGraphNodeMap(G);
   249   checkGraphEdgeMap(G);
   250   checkGraphArcMap(G);
   251 
   252   G.addNode();
   253   snapshot.save(G);
   254 
   255   G.addEdge(G.addNode(), G.addNode());
   256 
   257   snapshot.restore();
   258 
   259   checkGraphNodeList(G, 4);
   260   checkGraphEdgeList(G, 3);
   261   checkGraphArcList(G, 6);
   262 }
   263 
   264 void checkConcepts() {
   265   { // Checking graph components
   266     checkConcept<BaseGraphComponent, BaseGraphComponent >();
   267 
   268     checkConcept<IDableGraphComponent<>,
   269       IDableGraphComponent<> >();
   270 
   271     checkConcept<IterableGraphComponent<>,
   272       IterableGraphComponent<> >();
   273 
   274     checkConcept<MappableGraphComponent<>,
   275       MappableGraphComponent<> >();
   276   }
   277   { // Checking skeleton graph
   278     checkConcept<Graph, Graph>();
   279   }
   280   { // Checking ListGraph
   281     checkConcept<Graph, ListGraph>();
   282     checkConcept<AlterableGraphComponent<>, ListGraph>();
   283     checkConcept<ExtendableGraphComponent<>, ListGraph>();
   284     checkConcept<ClearableGraphComponent<>, ListGraph>();
   285     checkConcept<ErasableGraphComponent<>, ListGraph>();
   286   }
   287   { // Checking SmartGraph
   288     checkConcept<Graph, SmartGraph>();
   289     checkConcept<AlterableGraphComponent<>, SmartGraph>();
   290     checkConcept<ExtendableGraphComponent<>, SmartGraph>();
   291     checkConcept<ClearableGraphComponent<>, SmartGraph>();
   292   }
   293 //  { // Checking FullGraph
   294 //    checkConcept<Graph, FullGraph>();
   295 //    checkGraphIterators<FullGraph>();
   296 //  }
   297 //  { // Checking GridGraph
   298 //    checkConcept<Graph, GridGraph>();
   299 //    checkGraphIterators<GridGraph>();
   300 //  }
   301 }
   302 
   303 template <typename Graph>
   304 void checkGraphValidity() {
   305   TEMPLATE_GRAPH_TYPEDEFS(Graph);
   306   Graph g;
   307 
   308   Node
   309     n1 = g.addNode(),
   310     n2 = g.addNode(),
   311     n3 = g.addNode();
   312 
   313   Edge
   314     e1 = g.addEdge(n1, n2),
   315     e2 = g.addEdge(n2, n3);
   316 
   317   check(g.valid(n1), "Wrong validity check");
   318   check(g.valid(e1), "Wrong validity check");
   319   check(g.valid(g.direct(e1, true)), "Wrong validity check");
   320 
   321   check(!g.valid(g.nodeFromId(-1)), "Wrong validity check");
   322   check(!g.valid(g.edgeFromId(-1)), "Wrong validity check");
   323   check(!g.valid(g.arcFromId(-1)), "Wrong validity check");
   324 }
   325 
   326 template <typename Graph>
   327 void checkGraphValidityErase() {
   328   TEMPLATE_GRAPH_TYPEDEFS(Graph);
   329   Graph g;
   330 
   331   Node
   332     n1 = g.addNode(),
   333     n2 = g.addNode(),
   334     n3 = g.addNode();
   335 
   336   Edge
   337     e1 = g.addEdge(n1, n2),
   338     e2 = g.addEdge(n2, n3);
   339 
   340   check(g.valid(n1), "Wrong validity check");
   341   check(g.valid(e1), "Wrong validity check");
   342   check(g.valid(g.direct(e1, true)), "Wrong validity check");
   343 
   344   g.erase(n1);
   345 
   346   check(!g.valid(n1), "Wrong validity check");
   347   check(g.valid(n2), "Wrong validity check");
   348   check(g.valid(n3), "Wrong validity check");
   349   check(!g.valid(e1), "Wrong validity check");
   350   check(g.valid(e2), "Wrong validity check");
   351 
   352   check(!g.valid(g.nodeFromId(-1)), "Wrong validity check");
   353   check(!g.valid(g.edgeFromId(-1)), "Wrong validity check");
   354   check(!g.valid(g.arcFromId(-1)), "Wrong validity check");
   355 }
   356 
   357 // void checkGridGraph(const GridGraph& g, int w, int h) {
   358 //   check(g.width() == w, "Wrong width");
   359 //   check(g.height() == h, "Wrong height");
   360 
   361 //   for (int i = 0; i < w; ++i) {
   362 //     for (int j = 0; j < h; ++j) {
   363 //       check(g.col(g(i, j)) == i, "Wrong col");
   364 //       check(g.row(g(i, j)) == j, "Wrong row");
   365 //     }
   366 //   }
   367 
   368 //   for (int i = 0; i < w; ++i) {
   369 //     for (int j = 0; j < h - 1; ++j) {
   370 //       check(g.source(g.down(g(i, j))) == g(i, j), "Wrong down");
   371 //       check(g.target(g.down(g(i, j))) == g(i, j + 1), "Wrong down");
   372 //     }
   373 //     check(g.down(g(i, h - 1)) == INVALID, "Wrong down");
   374 //   }
   375 
   376 //   for (int i = 0; i < w; ++i) {
   377 //     for (int j = 1; j < h; ++j) {
   378 //       check(g.source(g.up(g(i, j))) == g(i, j), "Wrong up");
   379 //       check(g.target(g.up(g(i, j))) == g(i, j - 1), "Wrong up");
   380 //     }
   381 //     check(g.up(g(i, 0)) == INVALID, "Wrong up");
   382 //   }
   383 
   384 //   for (int j = 0; j < h; ++j) {
   385 //     for (int i = 0; i < w - 1; ++i) {
   386 //       check(g.source(g.right(g(i, j))) == g(i, j), "Wrong right");
   387 //       check(g.target(g.right(g(i, j))) == g(i + 1, j), "Wrong right");
   388 //     }
   389 //     check(g.right(g(w - 1, j)) == INVALID, "Wrong right");
   390 //   }
   391 
   392 //   for (int j = 0; j < h; ++j) {
   393 //     for (int i = 1; i < w; ++i) {
   394 //       check(g.source(g.left(g(i, j))) == g(i, j), "Wrong left");
   395 //       check(g.target(g.left(g(i, j))) == g(i - 1, j), "Wrong left");
   396 //     }
   397 //     check(g.left(g(0, j)) == INVALID, "Wrong left");
   398 //   }
   399 // }
   400 
   401 void checkGraphs() {
   402   { // Checking ListGraph
   403     checkGraphBuild<ListGraph>();
   404     checkGraphAlter<ListGraph>();
   405     checkGraphErase<ListGraph>();
   406     checkGraphSnapshot<ListGraph>();
   407     checkGraphValidityErase<ListGraph>();
   408   }
   409   { // Checking SmartGraph
   410     checkGraphBuild<SmartGraph>();
   411     checkGraphSnapshot<SmartGraph>();
   412     checkGraphValidity<SmartGraph>();
   413   }
   414 //   { // Checking FullGraph
   415 //     FullGraph g(5);
   416 //     checkGraphNodeList(g, 5);
   417 //     checkGraphEdgeList(g, 10);
   418 //   }
   419 //   { // Checking GridGraph
   420 //     GridGraph g(5, 6);
   421 //     checkGraphNodeList(g, 30);
   422 //     checkGraphEdgeList(g, 49);
   423 //     checkGridGraph(g, 5, 6);
   424 //   }
   425 }
   426 
   427 int main() {
   428   checkConcepts();
   429   checkGraphs();
   430   return 0;
   431 }