test/undir_graph_test.cc
author hegyi
Mon, 24 Oct 2005 10:15:40 +0000
changeset 1737 dc821d2668c1
parent 1568 f694f75de683
child 1795 ed3c253b9c29
permissions -rw-r--r--
Newly created map is realized by the property givening by common sense.
     1 // -*- C++ -*-
     2 
     3 #include <lemon/bits/undir_graph_extender.h>
     4 #include <lemon/concept/undir_graph.h>
     5 #include <lemon/list_graph.h>
     6 #include <lemon/smart_graph.h>
     7 #include <lemon/full_graph.h>
     8 #include <lemon/grid_graph.h>
     9 
    10 #include <lemon/graph_utils.h>
    11 
    12 #include "test_tools.h"
    13 
    14 
    15 using namespace lemon;
    16 using namespace lemon::concept;
    17 
    18 void check_concepts() {
    19   typedef UndirGraphExtender<ListGraphBase> UndirListGraphBase;
    20 
    21   typedef IterableUndirGraphExtender<
    22     AlterableUndirGraphExtender<UndirListGraphBase> > IterableUndirListGraph;
    23 
    24   typedef MappableUndirGraphExtender<IterableUndirListGraph>
    25     MappableUndirListGraph;
    26 
    27   typedef ErasableUndirGraphExtender<
    28     ClearableUndirGraphExtender<
    29     ExtendableUndirGraphExtender<MappableUndirListGraph> > > Graph;
    30 
    31   checkConcept<BaseIterableUndirGraphConcept, Graph>();
    32   checkConcept<IterableUndirGraphConcept, Graph>();
    33   checkConcept<MappableUndirGraphConcept, Graph>();
    34 
    35   checkConcept<UndirGraph, Graph>();
    36   checkConcept<ErasableUndirGraph, Graph>();
    37 
    38   checkConcept<UndirGraph, UndirListGraph>();
    39   checkConcept<ErasableUndirGraph, UndirListGraph>();
    40 
    41   checkConcept<UndirGraph, UndirSmartGraph>();
    42   checkConcept<ExtendableUndirGraph, UndirSmartGraph>();
    43 
    44   checkConcept<UndirGraph, UndirFullGraph>();
    45 
    46   checkConcept<UndirGraph, UndirGraph>();
    47 
    48   checkConcept<UndirGraph, GridGraph>();
    49 }
    50 
    51 template <typename Graph>
    52 void check_item_counts(Graph &g, int n, int e) {
    53   int nn = 0;
    54   for (typename Graph::NodeIt it(g); it != INVALID; ++it) {
    55     ++nn;
    56   }
    57 
    58   check(nn == n, "Wrong node number.");
    59   check(countNodes(g) == n, "Wrong node number.");
    60 
    61   int ee = 0;
    62   for (typename Graph::EdgeIt it(g); it != INVALID; ++it) {
    63     ++ee;
    64   }
    65 
    66   check(ee == 2*e, "Wrong edge number.");
    67   check(countEdges(g) == 2*e, "Wrong edge number.");
    68 
    69   int uee = 0;
    70   for (typename Graph::UndirEdgeIt it(g); it != INVALID; ++it) {
    71     ++uee;
    72   }
    73 
    74   check(uee == e, "Wrong undir edge number.");
    75   check(countUndirEdges(g) == e, "Wrong undir edge number.");
    76 }
    77 
    78 template <typename Graph>
    79 void print_items(Graph &g) {
    80 
    81   typedef typename Graph::NodeIt NodeIt;
    82   typedef typename Graph::UndirEdgeIt UEdgeIt;
    83   typedef typename Graph::EdgeIt EdgeIt;
    84 
    85   std::cout << "Nodes" << std::endl;
    86   int i=0;
    87   for(NodeIt it(g); it!=INVALID; ++it, ++i) {
    88     std::cout << "  " << i << ": " << g.id(it) << std::endl;
    89   }
    90 
    91   std::cout << "UndirEdge" << std::endl;
    92   i=0;
    93   for(UEdgeIt it(g); it!=INVALID; ++it, ++i) {
    94     std::cout << "  " << i << ": " << g.id(it) 
    95 	 << " (" << g.id(g.source(it)) << ", " << g.id(g.target(it)) 
    96 	 << ")" << std::endl;
    97   }
    98 
    99   std::cout << "Edge" << std::endl;
   100   i=0;
   101   for(EdgeIt it(g); it!=INVALID; ++it, ++i) {
   102     std::cout << "  " << i << ": " << g.id(it)
   103 	 << " (" << g.id(g.source(it)) << ", " << g.id(g.target(it)) 
   104 	 << ")" << std::endl;
   105   }
   106 
   107 }
   108 
   109 template <typename Graph>
   110 void check_graph() {
   111 
   112   typedef typename Graph::Node Node;
   113   typedef typename Graph::UndirEdge UEdge;
   114   typedef typename Graph::Edge Edge;
   115   typedef typename Graph::NodeIt NodeIt;
   116   typedef typename Graph::UndirEdgeIt UEdgeIt;
   117   typedef typename Graph::EdgeIt EdgeIt;
   118 
   119   Graph g;
   120 
   121   check_item_counts(g,0,0);
   122 
   123   Node
   124     n1 = g.addNode(),
   125     n2 = g.addNode(),
   126     n3 = g.addNode();
   127 
   128   UEdge
   129     e1 = g.addEdge(n1, n2),
   130     e2 = g.addEdge(n2, n3);
   131 
   132   // print_items(g);
   133 
   134   check_item_counts(g,3,2);
   135 }
   136 
   137 void checkGridGraph(const GridGraph& g, int w, int h) {
   138   check(g.width() == w, "Wrong width");
   139   check(g.height() == h, "Wrong height");
   140 
   141   for (int i = 0; i < w; ++i) {
   142     for (int j = 0; j < h; ++j) {
   143       check(g.col(g(i, j)) == i, "Wrong col");
   144       check(g.row(g(i, j)) == j, "Wrong row");
   145     }
   146   }
   147   
   148   for (int i = 0; i < w; ++i) {
   149     for (int j = 0; j < h - 1; ++j) {
   150       check(g.source(g.down(g(i, j))) == g(i, j), "Wrong down");
   151       check(g.target(g.down(g(i, j))) == g(i, j + 1), "Wrong down");
   152     }
   153     check(g.down(g(i, h - 1)) == INVALID, "Wrong down");
   154   }
   155 
   156   for (int i = 0; i < w; ++i) {
   157     for (int j = 1; j < h; ++j) {
   158       check(g.source(g.up(g(i, j))) == g(i, j), "Wrong up");
   159       check(g.target(g.up(g(i, j))) == g(i, j - 1), "Wrong up");
   160     }
   161     check(g.up(g(i, 0)) == INVALID, "Wrong up");
   162   }
   163 
   164   for (int j = 0; j < h; ++j) {
   165     for (int i = 0; i < w - 1; ++i) {
   166       check(g.source(g.right(g(i, j))) == g(i, j), "Wrong right");
   167       check(g.target(g.right(g(i, j))) == g(i + 1, j), "Wrong right");      
   168     }
   169     check(g.right(g(w - 1, j)) == INVALID, "Wrong right");    
   170   }
   171 
   172   for (int j = 0; j < h; ++j) {
   173     for (int i = 1; i < w; ++i) {
   174       check(g.source(g.left(g(i, j))) == g(i, j), "Wrong left");
   175       check(g.target(g.left(g(i, j))) == g(i - 1, j), "Wrong left");      
   176     }
   177     check(g.left(g(0, j)) == INVALID, "Wrong left");    
   178   }
   179 }
   180 
   181 int main() {
   182   check_concepts();
   183 
   184   check_graph<UndirListGraph>();
   185   check_graph<UndirSmartGraph>();
   186 
   187   {
   188     UndirFullGraph g(5);
   189     check_item_counts(g, 5, 10);
   190   }
   191 
   192   {
   193     GridGraph g(5, 6);
   194     check_item_counts(g, 30, 49);
   195     checkGridGraph(g, 5, 6);
   196   }
   197 
   198   std::cout << __FILE__ ": All tests passed.\n";
   199 
   200   return 0;
   201 }