test/graph_test.cc
author Alpar Juttner <alpar@cs.elte.hu>
Thu, 24 Jan 2008 16:49:10 +0000
changeset 97 ee1324c91288
child 107 31a2e6d28f61
permissions -rw-r--r--
Doc improvements
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2007
     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 <lemon/graph_utils.h>
    26 
    27 #include "test_tools.h"
    28 
    29 
    30 using namespace lemon;
    31 using namespace lemon::concepts;
    32 
    33 void check_concepts() {
    34 
    35   { // checking digraph components
    36     checkConcept<BaseGraphComponent, BaseGraphComponent >();
    37 
    38     checkConcept<IDableGraphComponent<>, 
    39       IDableGraphComponent<> >();
    40 
    41     checkConcept<IterableGraphComponent<>, 
    42       IterableGraphComponent<> >();
    43 
    44     checkConcept<MappableGraphComponent<>, 
    45       MappableGraphComponent<> >();
    46 
    47   }
    48   {
    49     checkConcept<Graph, ListGraph>();    
    50 //     checkConcept<Graph, SmartGraph>();    
    51 //     checkConcept<Graph, FullGraph>();    
    52 //     checkConcept<Graph, Graph>();    
    53 //     checkConcept<Graph, GridGraph>();
    54   }
    55 }
    56 
    57 template <typename Graph>
    58 void check_item_counts(Graph &g, int n, int e) {
    59   int nn = 0;
    60   for (typename Graph::NodeIt it(g); it != INVALID; ++it) {
    61     ++nn;
    62   }
    63 
    64   check(nn == n, "Wrong node number.");
    65   //  check(countNodes(g) == n, "Wrong node number.");
    66 
    67   int ee = 0;
    68   for (typename Graph::ArcIt it(g); it != INVALID; ++it) {
    69     ++ee;
    70   }
    71 
    72   check(ee == 2*e, "Wrong arc number.");
    73   //  check(countArcs(g) == 2*e, "Wrong arc number.");
    74 
    75   int uee = 0;
    76   for (typename Graph::EdgeIt it(g); it != INVALID; ++it) {
    77     ++uee;
    78   }
    79 
    80   check(uee == e, "Wrong edge number.");
    81   //  check(countEdges(g) == e, "Wrong edge number.");
    82 }
    83 
    84 template <typename Graph>
    85 void print_items(Graph &g) {
    86 
    87   typedef typename Graph::NodeIt NodeIt;
    88   typedef typename Graph::EdgeIt EdgeIt;
    89   typedef typename Graph::ArcIt ArcIt;
    90 
    91   std::cout << "Nodes" << std::endl;
    92   int i=0;
    93   for(NodeIt it(g); it!=INVALID; ++it, ++i) {
    94     std::cout << "  " << i << ": " << g.id(it) << std::endl;
    95   }
    96 
    97   std::cout << "Edge" << std::endl;
    98   i=0;
    99   for(EdgeIt it(g); it!=INVALID; ++it, ++i) {
   100     std::cout << "  " << i << ": " << g.id(it) 
   101 	 << " (" << g.id(g.source(it)) << ", " << g.id(g.target(it)) 
   102 	 << ")" << std::endl;
   103   }
   104 
   105   std::cout << "Arc" << std::endl;
   106   i=0;
   107   for(ArcIt it(g); it!=INVALID; ++it, ++i) {
   108     std::cout << "  " << i << ": " << g.id(it)
   109 	 << " (" << g.id(g.source(it)) << ", " << g.id(g.target(it)) 
   110 	 << ")" << std::endl;
   111   }
   112 
   113 }
   114 
   115 template <typename Graph>
   116 void check_graph() {
   117 
   118   typedef typename Graph::Node Node;
   119   typedef typename Graph::Edge Edge;
   120   typedef typename Graph::Arc Arc;
   121   typedef typename Graph::NodeIt NodeIt;
   122   typedef typename Graph::EdgeIt EdgeIt;
   123   typedef typename Graph::ArcIt ArcIt;
   124 
   125   Graph g;
   126 
   127   check_item_counts(g,0,0);
   128 
   129   Node
   130     n1 = g.addNode(),
   131     n2 = g.addNode(),
   132     n3 = g.addNode();
   133 
   134   Edge
   135     e1 = g.addEdge(n1, n2),
   136     e2 = g.addEdge(n2, n3);
   137 
   138   // print_items(g);
   139 
   140   check_item_counts(g,3,2);
   141 }
   142 
   143 // void checkGridGraph(const GridGraph& g, int w, int h) {
   144 //   check(g.width() == w, "Wrong width");
   145 //   check(g.height() == h, "Wrong height");
   146 
   147 //   for (int i = 0; i < w; ++i) {
   148 //     for (int j = 0; j < h; ++j) {
   149 //       check(g.col(g(i, j)) == i, "Wrong col");
   150 //       check(g.row(g(i, j)) == j, "Wrong row");
   151 //     }
   152 //   }
   153   
   154 //   for (int i = 0; i < w; ++i) {
   155 //     for (int j = 0; j < h - 1; ++j) {
   156 //       check(g.source(g.down(g(i, j))) == g(i, j), "Wrong down");
   157 //       check(g.target(g.down(g(i, j))) == g(i, j + 1), "Wrong down");
   158 //     }
   159 //     check(g.down(g(i, h - 1)) == INVALID, "Wrong down");
   160 //   }
   161 
   162 //   for (int i = 0; i < w; ++i) {
   163 //     for (int j = 1; j < h; ++j) {
   164 //       check(g.source(g.up(g(i, j))) == g(i, j), "Wrong up");
   165 //       check(g.target(g.up(g(i, j))) == g(i, j - 1), "Wrong up");
   166 //     }
   167 //     check(g.up(g(i, 0)) == INVALID, "Wrong up");
   168 //   }
   169 
   170 //   for (int j = 0; j < h; ++j) {
   171 //     for (int i = 0; i < w - 1; ++i) {
   172 //       check(g.source(g.right(g(i, j))) == g(i, j), "Wrong right");
   173 //       check(g.target(g.right(g(i, j))) == g(i + 1, j), "Wrong right");      
   174 //     }
   175 //     check(g.right(g(w - 1, j)) == INVALID, "Wrong right");    
   176 //   }
   177 
   178 //   for (int j = 0; j < h; ++j) {
   179 //     for (int i = 1; i < w; ++i) {
   180 //       check(g.source(g.left(g(i, j))) == g(i, j), "Wrong left");
   181 //       check(g.target(g.left(g(i, j))) == g(i - 1, j), "Wrong left");      
   182 //     }
   183 //     check(g.left(g(0, j)) == INVALID, "Wrong left");    
   184 //   }
   185 // }
   186 
   187 int main() {
   188   check_concepts();
   189 
   190   check_graph<ListGraph>();
   191 //  check_graph<SmartGraph>();
   192 
   193 //   {
   194 //     FullGraph g(5);
   195 //     check_item_counts(g, 5, 10);
   196 //   }
   197 
   198 //   {
   199 //     GridGraph g(5, 6);
   200 //     check_item_counts(g, 30, 49);
   201 //     checkGridGraph(g, 5, 6);
   202 //   }
   203 
   204   std::cout << __FILE__ ": All tests passed.\n";
   205 
   206   return 0;
   207 }