/* -*- C++ -*-
 * src/test/graph_test.h - Part of LEMON, a generic C++ optimization library
 *
 * Copyright (C) 2005 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 * (Egervary Combinatorial Optimization Research Group, 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 "test_tools.h"

//! \ingroup misc
//! \file
//! \brief Some utility and test cases to test graph classes.
namespace lemon {

  template<class Graph> void checkGraphNodeList(Graph &G, int nn)
  {
    typename Graph::NodeIt n(G);
    for(int i=0;i<nn;i++) {
      check(n!=INVALID,"Wrong Node list linking.");
      ++n;
    }
    check(n==INVALID,"Wrong Node list linking.");
  }

  template<class Graph>
  void checkGraphEdgeList(Graph &G, int nn)
  {
    typedef typename Graph::EdgeIt EdgeIt;

    EdgeIt e(G);
    for(int i=0;i<nn;i++) {
      check(e!=INVALID,"Wrong Edge list linking.");
      ++e;
    }
    check(e==INVALID,"Wrong Edge list linking.");
  }

  template<class Graph> 
  void checkGraphOutEdgeList(Graph &G, typename Graph::Node n, int nn)
  {
    typename Graph::OutEdgeIt e(G,n);
    for(int i=0;i<nn;i++) {
      check(e!=INVALID,"Wrong OutEdge list linking.");
      check(n==G.source(e), "Wrong OutEdge list linking.");
      ++e;
    }
    check(e==INVALID,"Wrong OutEdge list linking.");
  }

  template<class Graph> void 
  checkGraphInEdgeList(Graph &G, typename Graph::Node n, int nn)
  {
    typename Graph::InEdgeIt e(G,n);
    for(int i=0;i<nn;i++) {
      check(e!=INVALID,"Wrong InEdge list linking.");
      check(n==G.target(e), "Wrong InEdge list linking.");
      ++e;
    }
    check(e==INVALID,"Wrong InEdge list linking.");
  }

  template <class Graph> 
  void checkGraph() {
    const int num = 5;
    Graph G;
    addPetersen(G, num);
    bidirGraph(G);
    checkBidirPetersen(G, num);
  }

  ///\file
  ///\todo Check target(), source() as well;

  
} //namespace lemon


#endif