/* -*- mode: C++; indent-tabs-mode: nil; -*-

  *

  * This file is a part of LEMON, a generic C++ optimization library.

  *

  * Copyright (C) 2003-2008

  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

  * (Egervary Research Group on Combinatorial Optimization, EGRES).

  *

  * Permission to use, modify and distribute this software is granted

  * provided that this copyright notice appears in all copies. For

  * precise terms see the accompanying LICENSE file.

  *

  * This software is provided "AS IS" with no warranty of any kind,

  * express or implied, and with no claim as to its suitability for any

  * purpose.

  *

  */

 #ifndef LEMON_TEST_GRAPH_TEST_H

 #define LEMON_TEST_GRAPH_TEST_H

 #include <set>

 #include <lemon/core.h>

 #include <lemon/maps.h>

 #include "test_tools.h"

 namespace lemon {

   template<class Graph>

   void checkGraphNodeList(const Graph &G, int cnt)

   {

     typename Graph::NodeIt n(G);

     for(int i=0;i<cnt;i++) {

       check(n!=INVALID,"Wrong Node list linking.");

       ++n;

     }

     check(n==INVALID,"Wrong Node list linking.");

     check(countNodes(G)==cnt,"Wrong Node number.");

   }

   template<class Graph>

   void checkGraphArcList(const Graph &G, int cnt)

   {

     typename Graph::ArcIt e(G);

     for(int i=0;i<cnt;i++) {

       check(e!=INVALID,"Wrong Arc list linking.");

       check(G.oppositeNode(G.source(e), e) == G.target(e),

             "Wrong opposite node");

       check(G.oppositeNode(G.target(e), e) == G.source(e),

             "Wrong opposite node");

       ++e;

     }

     check(e==INVALID,"Wrong Arc list linking.");

     check(countArcs(G)==cnt,"Wrong Arc number.");

   }

   template<class Graph>

   void checkGraphOutArcList(const Graph &G, typename Graph::Node n, int cnt)

   {

     typename Graph::OutArcIt e(G,n);

     for(int i=0;i<cnt;i++) {

       check(e!=INVALID,"Wrong OutArc list linking.");

       check(n==G.source(e),"Wrong OutArc list linking.");

       check(n==G.baseNode(e),"Wrong OutArc list linking.");

       check(G.target(e)==G.runningNode(e),"Wrong OutArc list linking.");

       ++e;

     }

     check(e==INVALID,"Wrong OutArc list linking.");

     check(countOutArcs(G,n)==cnt,"Wrong OutArc number.");

   }

   template<class Graph>

   void checkGraphInArcList(const Graph &G, typename Graph::Node n, int cnt)

   {

     typename Graph::InArcIt e(G,n);

     for(int i=0;i<cnt;i++) {

       check(e!=INVALID,"Wrong InArc list linking.");

       check(n==G.target(e),"Wrong InArc list linking.");

       check(n==G.baseNode(e),"Wrong OutArc list linking.");

       check(G.source(e)==G.runningNode(e),"Wrong OutArc list linking.");

       ++e;

     }

     check(e==INVALID,"Wrong InArc list linking.");

     check(countInArcs(G,n)==cnt,"Wrong InArc number.");

   }

   template<class Graph>

   void checkGraphEdgeList(const Graph &G, int cnt)

   {

     typename Graph::EdgeIt e(G);

     for(int i=0;i<cnt;i++) {

       check(e!=INVALID,"Wrong Edge list linking.");

       check(G.oppositeNode(G.u(e), e) == G.v(e), "Wrong opposite node");

       check(G.oppositeNode(G.v(e), e) == G.u(e), "Wrong opposite node");

       ++e;

     }

     check(e==INVALID,"Wrong Edge list linking.");

     check(countEdges(G)==cnt,"Wrong Edge number.");

   }

   template<class Graph>

   void checkGraphIncEdgeList(const Graph &G, typename Graph::Node n, int cnt)

   {

     typename Graph::IncEdgeIt e(G,n);

     for(int i=0;i<cnt;i++) {

       check(e!=INVALID,"Wrong IncEdge list linking.");

       check(n==G.u(e) || n==G.v(e),"Wrong IncEdge list linking.");

       check(n==G.baseNode(e),"Wrong OutArc list linking.");

       check(G.u(e)==G.runningNode(e) || G.v(e)==G.runningNode(e),

             "Wrong OutArc list linking.");

       ++e;

     }

     check(e==INVALID,"Wrong IncEdge list linking.");

     check(countIncEdges(G,n)==cnt,"Wrong IncEdge number.");

   }

   template <class Graph>

   void checkGraphIncEdgeArcLists(const Graph &G, typename Graph::Node n,

                                  int cnt)

   {

     checkGraphIncEdgeList(G, n, cnt);

     checkGraphOutArcList(G, n, cnt);

     checkGraphInArcList(G, n, cnt);

   }

   template <class Graph>

   void checkGraphConArcList(const Graph &G, int cnt) {

     int i = 0;

     for (typename Graph::NodeIt u(G); u != INVALID; ++u) {

       for (typename Graph::NodeIt v(G); v != INVALID; ++v) {

         for (ConArcIt<Graph> a(G, u, v); a != INVALID; ++a) {

           check(G.source(a) == u, "Wrong iterator.");

           check(G.target(a) == v, "Wrong iterator.");

           ++i;

         }

       }

     }

     check(cnt == i, "Wrong iterator.");

   }

   template <class Graph>

   void checkGraphConEdgeList(const Graph &G, int cnt) {

     int i = 0;

     for (typename Graph::NodeIt u(G); u != INVALID; ++u) {

       for (typename Graph::NodeIt v(G); v != INVALID; ++v) {

         for (ConEdgeIt<Graph> e(G, u, v); e != INVALID; ++e) {

           check((G.u(e) == u && G.v(e) == v) ||

                 (G.u(e) == v && G.v(e) == u), "Wrong iterator.");

           i += u == v ? 2 : 1;

         }

       }

     }

     check(2 * cnt == i, "Wrong iterator.");

   }

   template <typename Graph>

   void checkArcDirections(const Graph& G) {

     for (typename Graph::ArcIt a(G); a != INVALID; ++a) {

       check(G.source(a) == G.target(G.oppositeArc(a)), "Wrong direction");

       check(G.target(a) == G.source(G.oppositeArc(a)), "Wrong direction");

       check(G.direct(a, G.direction(a)) == a, "Wrong direction");

     }

   }

   template <typename Graph>

   void checkNodeIds(const Graph& G) {

     std::set<int> values;

     for (typename Graph::NodeIt n(G); n != INVALID; ++n) {

       check(G.nodeFromId(G.id(n)) == n, "Wrong id");

       check(values.find(G.id(n)) == values.end(), "Wrong id");

       check(G.id(n) <= G.maxNodeId(), "Wrong maximum id");

       values.insert(G.id(n));

     }

   }

   template <typename Graph>

   void checkArcIds(const Graph& G) {

     std::set<int> values;

     for (typename Graph::ArcIt a(G); a != INVALID; ++a) {

       check(G.arcFromId(G.id(a)) == a, "Wrong id");

       check(values.find(G.id(a)) == values.end(), "Wrong id");

       check(G.id(a) <= G.maxArcId(), "Wrong maximum id");

       values.insert(G.id(a));

     }

   }

   template <typename Graph>

   void checkEdgeIds(const Graph& G) {

     std::set<int> values;

     for (typename Graph::EdgeIt e(G); e != INVALID; ++e) {

       check(G.edgeFromId(G.id(e)) == e, "Wrong id");

       check(values.find(G.id(e)) == values.end(), "Wrong id");

       check(G.id(e) <= G.maxEdgeId(), "Wrong maximum id");

       values.insert(G.id(e));

     }

   }

   template <typename Graph>

   void checkGraphNodeMap(const Graph& G) {

     typedef typename Graph::Node Node;

     typedef typename Graph::NodeIt NodeIt;

     typedef typename Graph::template NodeMap<int> IntNodeMap;

     IntNodeMap map(G, 42);

     for (NodeIt it(G); it != INVALID; ++it) {

       check(map[it] == 42, "Wrong map constructor.");

     }

     int s = 0;

     for (NodeIt it(G); it != INVALID; ++it) {

       map[it] = 0;

       check(map[it] == 0, "Wrong operator[].");

       map.set(it, s);

       check(map[it] == s, "Wrong set.");

       ++s;

     }

     s = s * (s - 1) / 2;

     for (NodeIt it(G); it != INVALID; ++it) {

       s -= map[it];

     }

     check(s == 0, "Wrong sum.");

     // map = constMap<Node>(12);

     // for (NodeIt it(G); it != INVALID; ++it) {

     //   check(map[it] == 12, "Wrong operator[].");

     // }

   }

   template <typename Graph>

   void checkGraphArcMap(const Graph& G) {

     typedef typename Graph::Arc Arc;

     typedef typename Graph::ArcIt ArcIt;

     typedef typename Graph::template ArcMap<int> IntArcMap;

     IntArcMap map(G, 42);

     for (ArcIt it(G); it != INVALID; ++it) {

       check(map[it] == 42, "Wrong map constructor.");

     }

     int s = 0;

     for (ArcIt it(G); it != INVALID; ++it) {

       map[it] = 0;

       check(map[it] == 0, "Wrong operator[].");

       map.set(it, s);

       check(map[it] == s, "Wrong set.");

       ++s;

     }

     s = s * (s - 1) / 2;

     for (ArcIt it(G); it != INVALID; ++it) {

       s -= map[it];

     }

     check(s == 0, "Wrong sum.");

     // map = constMap<Arc>(12);

     // for (ArcIt it(G); it != INVALID; ++it) {

     //   check(map[it] == 12, "Wrong operator[].");

     // }

   }

   template <typename Graph>

   void checkGraphEdgeMap(const Graph& G) {

     typedef typename Graph::Edge Edge;

     typedef typename Graph::EdgeIt EdgeIt;

     typedef typename Graph::template EdgeMap<int> IntEdgeMap;

     IntEdgeMap map(G, 42);

     for (EdgeIt it(G); it != INVALID; ++it) {

       check(map[it] == 42, "Wrong map constructor.");

     }

     int s = 0;

     for (EdgeIt it(G); it != INVALID; ++it) {

       map[it] = 0;

       check(map[it] == 0, "Wrong operator[].");

       map.set(it, s);

       check(map[it] == s, "Wrong set.");

       ++s;

     }

     s = s * (s - 1) / 2;

     for (EdgeIt it(G); it != INVALID; ++it) {

       s -= map[it];

     }

     check(s == 0, "Wrong sum.");

     // map = constMap<Edge>(12);

     // for (EdgeIt it(G); it != INVALID; ++it) {

     //   check(map[it] == 12, "Wrong operator[].");

     // }

   }

 } //namespace lemon

 #endif