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

  *

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

  *

  * Copyright (C) 2003-2009

  * 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.

  *

  */

 #include <lemon/smart_graph.h>

 #include <lemon/list_graph.h>

 #include <lemon/static_graph.h>

 #include <lemon/lgf_reader.h>

 #include <lemon/error.h>

 #include "test_tools.h"

 using namespace std;

 using namespace lemon;

 template <typename GR>

 void digraph_copy_test() {

   const int nn = 10;

   // Build a digraph

   SmartDigraph from;

   SmartDigraph::NodeMap<int> fnm(from);

   SmartDigraph::ArcMap<int> fam(from);

   SmartDigraph::Node fn = INVALID;

   SmartDigraph::Arc fa = INVALID;

   std::vector<SmartDigraph::Node> fnv;

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

     SmartDigraph::Node node = from.addNode();

     fnv.push_back(node);

     fnm[node] = i * i;

     if (i == 0) fn = node;

   }

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

     for (int j = 0; j < nn; ++j) {

       SmartDigraph::Arc arc = from.addArc(fnv[i], fnv[j]);

       fam[arc] = i + j * j;

       if (i == 0 && j == 0) fa = arc;

     }

   }

   // Test digraph copy

   GR to;

   typename GR::template NodeMap<int> tnm(to);

   typename GR::template ArcMap<int> tam(to);

   typename GR::Node tn;

   typename GR::Arc ta;

   SmartDigraph::NodeMap<typename GR::Node> nr(from);

   SmartDigraph::ArcMap<typename GR::Arc> er(from);

   typename GR::template NodeMap<SmartDigraph::Node> ncr(to);

   typename GR::template ArcMap<SmartDigraph::Arc> ecr(to);

   digraphCopy(from, to).

     nodeMap(fnm, tnm).arcMap(fam, tam).

     nodeRef(nr).arcRef(er).

     nodeCrossRef(ncr).arcCrossRef(ecr).

     node(fn, tn).arc(fa, ta).run();

   check(countNodes(from) == countNodes(to), "Wrong copy.");

   check(countArcs(from) == countArcs(to), "Wrong copy.");

   for (SmartDigraph::NodeIt it(from); it != INVALID; ++it) {

     check(ncr[nr[it]] == it, "Wrong copy.");

     check(fnm[it] == tnm[nr[it]], "Wrong copy.");

   }

   for (SmartDigraph::ArcIt it(from); it != INVALID; ++it) {

     check(ecr[er[it]] == it, "Wrong copy.");

     check(fam[it] == tam[er[it]], "Wrong copy.");

     check(nr[from.source(it)] == to.source(er[it]), "Wrong copy.");

     check(nr[from.target(it)] == to.target(er[it]), "Wrong copy.");

   }

   for (typename GR::NodeIt it(to); it != INVALID; ++it) {

     check(nr[ncr[it]] == it, "Wrong copy.");

   }

   for (typename GR::ArcIt it(to); it != INVALID; ++it) {

     check(er[ecr[it]] == it, "Wrong copy.");

   }

   check(tn == nr[fn], "Wrong copy.");

   check(ta == er[fa], "Wrong copy.");

   // Test repeated copy

   digraphCopy(from, to).run();

   check(countNodes(from) == countNodes(to), "Wrong copy.");

   check(countArcs(from) == countArcs(to), "Wrong copy.");

 }

 template <typename GR>

 void graph_copy_test() {

   const int nn = 10;

   // Build a graph

   SmartGraph from;

   SmartGraph::NodeMap<int> fnm(from);

   SmartGraph::ArcMap<int> fam(from);

   SmartGraph::EdgeMap<int> fem(from);

   SmartGraph::Node fn = INVALID;

   SmartGraph::Arc fa = INVALID;

   SmartGraph::Edge fe = INVALID;

   std::vector<SmartGraph::Node> fnv;

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

     SmartGraph::Node node = from.addNode();

     fnv.push_back(node);

     fnm[node] = i * i;

     if (i == 0) fn = node;

   }

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

     for (int j = 0; j < nn; ++j) {

       SmartGraph::Edge edge = from.addEdge(fnv[i], fnv[j]);

       fem[edge] = i * i + j * j;

       fam[from.direct(edge, true)] = i + j * j;

       fam[from.direct(edge, false)] = i * i + j;

       if (i == 0 && j == 0) fa = from.direct(edge, true);

       if (i == 0 && j == 0) fe = edge;

     }

   }

   // Test graph copy

   GR to;

   typename GR::template NodeMap<int> tnm(to);

   typename GR::template ArcMap<int> tam(to);

   typename GR::template EdgeMap<int> tem(to);

   typename GR::Node tn;

   typename GR::Arc ta;

   typename GR::Edge te;

   SmartGraph::NodeMap<typename GR::Node> nr(from);

   SmartGraph::ArcMap<typename GR::Arc> ar(from);

   SmartGraph::EdgeMap<typename GR::Edge> er(from);

   typename GR::template NodeMap<SmartGraph::Node> ncr(to);

   typename GR::template ArcMap<SmartGraph::Arc> acr(to);

   typename GR::template EdgeMap<SmartGraph::Edge> ecr(to);

   graphCopy(from, to).

     nodeMap(fnm, tnm).arcMap(fam, tam).edgeMap(fem, tem).

     nodeRef(nr).arcRef(ar).edgeRef(er).

     nodeCrossRef(ncr).arcCrossRef(acr).edgeCrossRef(ecr).

     node(fn, tn).arc(fa, ta).edge(fe, te).run();

   check(countNodes(from) == countNodes(to), "Wrong copy.");

   check(countEdges(from) == countEdges(to), "Wrong copy.");

   check(countArcs(from) == countArcs(to), "Wrong copy.");

   for (SmartGraph::NodeIt it(from); it != INVALID; ++it) {

     check(ncr[nr[it]] == it, "Wrong copy.");

     check(fnm[it] == tnm[nr[it]], "Wrong copy.");

   }

   for (SmartGraph::ArcIt it(from); it != INVALID; ++it) {

     check(acr[ar[it]] == it, "Wrong copy.");

     check(fam[it] == tam[ar[it]], "Wrong copy.");

     check(nr[from.source(it)] == to.source(ar[it]), "Wrong copy.");

     check(nr[from.target(it)] == to.target(ar[it]), "Wrong copy.");

   }

   for (SmartGraph::EdgeIt it(from); it != INVALID; ++it) {

     check(ecr[er[it]] == it, "Wrong copy.");

     check(fem[it] == tem[er[it]], "Wrong copy.");

     check(nr[from.u(it)] == to.u(er[it]) || nr[from.u(it)] == to.v(er[it]),

           "Wrong copy.");

     check(nr[from.v(it)] == to.u(er[it]) || nr[from.v(it)] == to.v(er[it]),

           "Wrong copy.");

     check((from.u(it) != from.v(it)) == (to.u(er[it]) != to.v(er[it])),

           "Wrong copy.");

   }

   for (typename GR::NodeIt it(to); it != INVALID; ++it) {

     check(nr[ncr[it]] == it, "Wrong copy.");

   }

   for (typename GR::ArcIt it(to); it != INVALID; ++it) {

     check(ar[acr[it]] == it, "Wrong copy.");

   }

   for (typename GR::EdgeIt it(to); it != INVALID; ++it) {

     check(er[ecr[it]] == it, "Wrong copy.");

   }

   check(tn == nr[fn], "Wrong copy.");

   check(ta == ar[fa], "Wrong copy.");

   check(te == er[fe], "Wrong copy.");

   // Test repeated copy

   graphCopy(from, to).run();

   check(countNodes(from) == countNodes(to), "Wrong copy.");

   check(countEdges(from) == countEdges(to), "Wrong copy.");

   check(countArcs(from) == countArcs(to), "Wrong copy.");

 }

 int main() {

   digraph_copy_test<SmartDigraph>();

   digraph_copy_test<ListDigraph>();

   digraph_copy_test<StaticDigraph>();

   graph_copy_test<SmartGraph>();

   graph_copy_test<ListGraph>();

   return 0;

 }