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

 *

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

 *

 * Copyright (C) 2003-2011

 * 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/list_graph.h>

#include <lemon/lgf_reader.h>

#include "test_tools.h"

using namespace lemon;

char test_lgf[] =

  "@nodes\n"

  "label\n"

  "0\n"

  "1\n"

  "@arcs\n"

  "     label\n"

  "0 1  0\n"

  "1 0  1\n"

  "@attributes\n"

  "source 0\n"

  "target 1\n";

char test_lgf_nomap[] =

  "@nodes\n"

  "label\n"

  "0\n"

  "1\n"

  "@arcs\n"

  "     -\n"

  "0 1\n";

char test_lgf_bad1[] =

  "@nodes\n"

  "label\n"

  "0\n"

  "1\n"

  "@arcs\n"

  "     - another\n"

  "0 1\n";

char test_lgf_bad2[] =

  "@nodes\n"

  "label\n"

  "0\n"

  "1\n"

  "@arcs\n"

  "     label -\n"

  "0 1\n";

int main() 

{

  {

    ListDigraph d; 

    ListDigraph::Node s,t;

    ListDigraph::ArcMap<int> label(d);

    std::istringstream input(test_lgf);

    digraphReader(d, input).

      node("source", s).

      node("target", t).

      arcMap("label", label).

      run();

    check(countNodes(d) == 2,"There should be 2 nodes");

    check(countArcs(d) == 2,"There should be 2 arcs");

  }

  {

    ListGraph g;

    ListGraph::Node s,t;

    ListGraph::EdgeMap<int> label(g);

    std::istringstream input(test_lgf);

    graphReader(g, input).

      node("source", s).

      node("target", t).

      edgeMap("label", label).

      run();

    check(countNodes(g) == 2,"There should be 2 nodes");

    check(countEdges(g) == 2,"There should be 2 arcs");

  }

  {

    ListDigraph d; 

    std::istringstream input(test_lgf_nomap);

    digraphReader(d, input).

      run();

    check(countNodes(d) == 2,"There should be 2 nodes");

    check(countArcs(d) == 1,"There should be 1 arc");

  }

  {

    ListGraph g;

    std::istringstream input(test_lgf_nomap);

    graphReader(g, input).

      run();

    check(countNodes(g) == 2,"There should be 2 nodes");

    check(countEdges(g) == 1,"There should be 1 edge");

  }

  {

    ListDigraph d; 

    std::istringstream input(test_lgf_bad1);

    bool ok=false;

    try {

      digraphReader(d, input).

        run();

    }

    catch (FormatError& error) 

      {

        ok = true;

      }

    check(ok,"FormatError exception should have occured");

  }

  {

    ListGraph g;

    std::istringstream input(test_lgf_bad1);

    bool ok=false;

    try {

      graphReader(g, input).

        run();

    }

    catch (FormatError& error)

      {

        ok = true;

      }

    check(ok,"FormatError exception should have occured");

  }

  {

    ListDigraph d; 

    std::istringstream input(test_lgf_bad2);

    bool ok=false;

    try {

      digraphReader(d, input).

        run();

    }

    catch (FormatError& error)

      {

        ok = true;

      }

    check(ok,"FormatError exception should have occured");

  }

  {

    ListGraph g;

    std::istringstream input(test_lgf_bad2);

    bool ok=false;

    try {

      graphReader(g, input).

        run();

    }

    catch (FormatError& error)

      {

        ok = true;

      }

    check(ok,"FormatError exception should have occured");

  }

}