test/graph_utils_test.h
author Balazs Dezso <deba@inf.elte.hu>
Sat, 31 May 2008 12:31:21 +0200
changeset 163 c82fd9568d75
permissions -rw-r--r--
Bug fixes and improvements in LGF IO
     1 /* -*- C++ -*-
     2  *
     3  * This file is a part of LEMON, a generic C++ optimization library
     4  *
     5  * Copyright (C) 2003-2008
     6  * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
     7  * (Egervary Research Group on Combinatorial Optimization, EGRES).
     8  *
     9  * Permission to use, modify and distribute this software is granted
    10  * provided that this copyright notice appears in all copies. For
    11  * precise terms see the accompanying LICENSE file.
    12  *
    13  * This software is provided "AS IS" with no warranty of any kind,
    14  * express or implied, and with no claim as to its suitability for any
    15  * purpose.
    16  *
    17  */
    18 
    19 #ifndef LEMON_TEST_GRAPH_UTILS_TEST_H
    20 #define LEMON_TEST_GRAPH_UTILS_TEST_H
    21 
    22 
    23 #include "test_tools.h"
    24 #include <cstdlib>
    25 #include <ctime>
    26 
    27 //! \ingroup misc
    28 //! \file
    29 //! \brief Test cases for graph utils.
    30 namespace lemon {
    31   
    32   template <typename Digraph>
    33   void checkDigraphCounters() {
    34     const int num = 5;
    35     Digraph digraph;
    36     addPetersen(digraph, num);
    37     bidirDigraph(digraph);
    38     check(countNodes(digraph) == 2*num, "Wrong node number.");
    39     check(countArcs(digraph) == 6*num, "Wrong arc number.");    
    40     for (typename Digraph::NodeIt it(digraph); it != INVALID; ++it) {
    41       check(countOutArcs(digraph, it) == 3, "Wrong out degree number.");
    42       check(countInArcs(digraph, it) == 3, "Wrong in degree number.");
    43     }
    44   }
    45 
    46   template <typename Digraph>
    47   void checkFindArc() {
    48     typedef typename Digraph::Node Node;
    49     typedef typename Digraph::Arc Arc;
    50     typedef typename Digraph::NodeIt NodeIt;
    51     typedef typename Digraph::ArcIt ArcIt;
    52     Digraph digraph;
    53     for (int i = 0; i < 10; ++i) {
    54       digraph.addNode();
    55     }
    56     DescriptorMap<Digraph, Node> nodes(digraph);
    57     typename DescriptorMap<Digraph, Node>::InverseMap invNodes(nodes);
    58     for (int i = 0; i < 100; ++i) {
    59       int src = rnd[invNodes.size()];
    60       int trg = rnd[invNodes.size()];
    61       digraph.addArc(invNodes[src], invNodes[trg]);
    62     }
    63     typename Digraph::template ArcMap<bool> found(digraph, false);
    64     DescriptorMap<Digraph, Arc> arcs(digraph);
    65     for (NodeIt src(digraph); src != INVALID; ++src) {
    66       for (NodeIt trg(digraph); trg != INVALID; ++trg) {
    67 	for (ConArcIt<Digraph> con(digraph, src, trg); con != INVALID; ++con) {
    68 	  check(digraph.source(con) == src, "Wrong source.");
    69 	  check(digraph.target(con) == trg, "Wrong target.");
    70 	  check(found[con] == false, "The arc found already.");
    71 	  found[con] = true;
    72 	}
    73       }
    74     }
    75     for (ArcIt it(digraph); it != INVALID; ++it) {
    76       check(found[it] == true, "The arc is not found.");
    77     }
    78   }
    79   
    80 } //namespace lemon
    81 
    82 
    83 #endif