1.1 --- a/test/test_tools.h	Tue Mar 18 16:45:21 2008 +0100
     1.2 +++ b/test/test_tools.h	Thu Mar 20 12:12:24 2008 +0000
     1.3 @@ -20,6 +20,17 @@
     1.4  #define LEMON_TEST_TEST_TOOLS_H
     1.5  
     1.6  #include <iostream>
     1.7 +#include <vector>
     1.8 +
     1.9 +#include <cstdlib>
    1.10 +#include <ctime>
    1.11 +
    1.12 +#include <lemon/concept_check.h>
    1.13 +#include <lemon/concepts/digraph.h>
    1.14 +
    1.15 +#include <lemon/random.h>
    1.16 +
    1.17 +using namespace lemon;
    1.18  
    1.19  //! \ingroup misc
    1.20  //! \file
    1.21 @@ -36,7 +47,7 @@
    1.22  ///For example
    1.23  ///\code check(0==1,"This is obviously false.");\endcode will
    1.24  ///print this (and then exits).
    1.25 -///\verbatim graph_test.cc:123: error: This is obviously false. \endverbatim
    1.26 +///\verbatim digraph_test.cc:123: error: This is obviously false. \endverbatim
    1.27  ///
    1.28  ///\todo It should be in \c error.h
    1.29  #define check(rc, msg) \
    1.30 @@ -45,4 +56,126 @@
    1.31      abort(); \
    1.32    } else { } \
    1.33  
    1.34 +///Structure returned by \ref addPetersen().
    1.35 +
    1.36 +///Structure returned by \ref addPetersen().
    1.37 +///
    1.38 +template<class Digraph> struct PetStruct
    1.39 +{
    1.40 +  ///Vector containing the outer nodes.
    1.41 +  std::vector<typename Digraph::Node> outer;
    1.42 +  ///Vector containing the inner nodes.
    1.43 +  std::vector<typename Digraph::Node> inner;
    1.44 +  ///Vector containing the arcs of the inner circle.
    1.45 +  std::vector<typename Digraph::Arc> incir;
    1.46 +  ///Vector containing the arcs of the outer circle.
    1.47 +  std::vector<typename Digraph::Arc> outcir;
    1.48 +  ///Vector containing the chord arcs.
    1.49 +  std::vector<typename Digraph::Arc> chords;
    1.50 +};
    1.51 +
    1.52 +
    1.53 +
    1.54 +///Adds a Petersen digraph to \c G.
    1.55 +
    1.56 +///Adds a Petersen digraph to \c G.
    1.57 +///\return The nodes and arcs of the generated digraph.
    1.58 +
    1.59 +template<typename Digraph>
    1.60 +PetStruct<Digraph> addPetersen(Digraph &G,int num = 5)
    1.61 +{
    1.62 +  PetStruct<Digraph> n;
    1.63 +
    1.64 +  for(int i=0;i<num;i++) {
    1.65 +    n.outer.push_back(G.addNode());
    1.66 +    n.inner.push_back(G.addNode());
    1.67 +  }
    1.68 +
    1.69 + for(int i=0;i<num;i++) {
    1.70 +   n.chords.push_back(G.addArc(n.outer[i],n.inner[i]));
    1.71 +   n.outcir.push_back(G.addArc(n.outer[i],n.outer[(i+1) % num]));
    1.72 +   n.incir.push_back(G.addArc(n.inner[i],n.inner[(i+2) % num]));
    1.73 +  }
    1.74 + return n;
    1.75 +}
    1.76 +
    1.77 +/// \brief Adds to the digraph the reverse pair of all arcs.
    1.78 +///
    1.79 +/// Adds to the digraph the reverse pair of all arcs.
    1.80 +///
    1.81 +template<class Digraph> void bidirDigraph(Digraph &G)
    1.82 +{
    1.83 +  typedef typename Digraph::Arc Arc;
    1.84 +  typedef typename Digraph::ArcIt ArcIt;
    1.85 +  
    1.86 +  std::vector<Arc> ee;
    1.87 +  
    1.88 +  for(ArcIt e(G);e!=INVALID;++e) ee.push_back(e);
    1.89 +
    1.90 +  for(typename std::vector<Arc>::iterator p=ee.begin();p!=ee.end();p++)
    1.91 +    G.addArc(G.target(*p),G.source(*p));
    1.92 +}
    1.93 +
    1.94 +
    1.95 +/// \brief Checks the bidirectioned Petersen digraph.
    1.96 +///
    1.97 +///  Checks the bidirectioned Petersen digraph.
    1.98 +///
    1.99 +template<class Digraph> void checkBidirPetersen(Digraph &G, int num = 5)
   1.100 +{
   1.101 +  typedef typename Digraph::Node Node;
   1.102 +
   1.103 +  typedef typename Digraph::ArcIt ArcIt;
   1.104 +  typedef typename Digraph::NodeIt NodeIt;
   1.105 +
   1.106 +  checkDigraphNodeList(G, 2 * num);
   1.107 +  checkDigraphArcList(G, 6 * num);
   1.108 +
   1.109 +  for(NodeIt n(G);n!=INVALID;++n) {
   1.110 +    checkDigraphInArcList(G, n, 3);
   1.111 +    checkDigraphOutArcList(G, n, 3);
   1.112 +  }  
   1.113 +}
   1.114 +
   1.115 +///Structure returned by \ref addUPetersen().
   1.116 +
   1.117 +///Structure returned by \ref addUPetersen().
   1.118 +///
   1.119 +template<class Digraph> struct UPetStruct
   1.120 +{
   1.121 +  ///Vector containing the outer nodes.
   1.122 +  std::vector<typename Digraph::Node> outer;
   1.123 +  ///Vector containing the inner nodes.
   1.124 +  std::vector<typename Digraph::Node> inner;
   1.125 +  ///Vector containing the arcs of the inner circle.
   1.126 +  std::vector<typename Digraph::Edge> incir;
   1.127 +  ///Vector containing the arcs of the outer circle.
   1.128 +  std::vector<typename Digraph::Edge> outcir;
   1.129 +  ///Vector containing the chord arcs.
   1.130 +  std::vector<typename Digraph::Edge> chords;
   1.131 +};
   1.132 +
   1.133 +///Adds a Petersen digraph to the undirected \c G.
   1.134 +
   1.135 +///Adds a Petersen digraph to the undirected \c G.
   1.136 +///\return The nodes and arcs of the generated digraph.
   1.137 +
   1.138 +template<typename Digraph>
   1.139 +UPetStruct<Digraph> addUPetersen(Digraph &G,int num=5)
   1.140 +{
   1.141 +  UPetStruct<Digraph> n;
   1.142 +
   1.143 +  for(int i=0;i<num;i++) {
   1.144 +    n.outer.push_back(G.addNode());
   1.145 +    n.inner.push_back(G.addNode());
   1.146 +  }
   1.147 +
   1.148 + for(int i=0;i<num;i++) {
   1.149 +   n.chords.push_back(G.addArc(n.outer[i],n.inner[i]));
   1.150 +   n.outcir.push_back(G.addArc(n.outer[i],n.outer[(i+1)%5]));
   1.151 +   n.incir.push_back(G.addArc(n.inner[i],n.inner[(i+2)%5]));
   1.152 + }
   1.153 + return n;
   1.154 +}
   1.155 +
   1.156  #endif