1 | /* -*- C++ -*- |
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2 | * test/graph_utils_test.h - Part of LEMON, a generic C++ optimization library |
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3 | * |
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4 | * Copyright (C) 2006 Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport |
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5 | * (Egervary Research Group on Combinatorial Optimization, EGRES). |
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6 | * |
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7 | * Permission to use, modify and distribute this software is granted |
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8 | * provided that this copyright notice appears in all copies. For |
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9 | * precise terms see the accompanying LICENSE file. |
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10 | * |
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11 | * This software is provided "AS IS" with no warranty of any kind, |
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12 | * express or implied, and with no claim as to its suitability for any |
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13 | * purpose. |
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14 | * |
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15 | */ |
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16 | #ifndef LEMON_TEST_GRAPH_UTILS_TEST_H |
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17 | #define LEMON_TEST_GRAPH_UTILS_TEST_H |
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18 | |
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19 | |
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20 | #include "test_tools.h" |
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21 | #include <cstdlib> |
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22 | #include <ctime> |
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23 | |
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24 | //! \ingroup misc |
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25 | //! \file |
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26 | //! \brief Test cases for graph utils. |
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27 | namespace lemon { |
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28 | |
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29 | template <typename Graph> |
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30 | void checkGraphCounters() { |
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31 | const int num = 5; |
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32 | Graph graph; |
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33 | addPetersen(graph, num); |
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34 | bidirGraph(graph); |
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35 | check(countNodes(graph) == 2*num, "Wrong node number."); |
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36 | check(countEdges(graph) == 6*num, "Wrong edge number."); |
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37 | for (typename Graph::NodeIt it(graph); it != INVALID; ++it) { |
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38 | check(countOutEdges(graph, it) == 3, "Wrong out degree number."); |
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39 | check(countInEdges(graph, it) == 3, "Wrong in degree number."); |
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40 | } |
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41 | } |
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42 | |
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43 | template <typename Graph> |
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44 | void checkFindEdge() { |
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45 | typedef typename Graph::Node Node; |
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46 | typedef typename Graph::Edge Edge; |
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47 | typedef typename Graph::NodeIt NodeIt; |
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48 | typedef typename Graph::EdgeIt EdgeIt; |
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49 | Graph graph; |
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50 | srand(time(0)); |
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51 | for (int i = 0; i < 10; ++i) { |
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52 | graph.addNode(); |
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53 | } |
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54 | DescriptorMap<Graph, Node> nodes(graph); |
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55 | typename DescriptorMap<Graph, Node>::InverseMap invNodes(nodes); |
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56 | for (int i = 0; i < 100; ++i) { |
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57 | int src = (int)(rand() / (RAND_MAX + 1.0) * invNodes.size()); |
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58 | int trg = (int)(rand() / (RAND_MAX + 1.0) * invNodes.size()); |
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59 | graph.addEdge(invNodes[src], invNodes[trg]); |
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60 | } |
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61 | typename Graph::template EdgeMap<bool> found(graph, false); |
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62 | DescriptorMap<Graph, Edge> edges(graph); |
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63 | for (NodeIt src(graph); src != INVALID; ++src) { |
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64 | for (NodeIt trg(graph); trg != INVALID; ++trg) { |
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65 | for (ConEdgeIt<Graph> con(graph, src, trg); con != INVALID; ++con) { |
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66 | check(graph.source(con) == src, "Wrong source."); |
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67 | check(graph.target(con) == trg, "Wrong target."); |
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68 | check(found[con] == false, "The edge found already."); |
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69 | found[con] = true; |
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70 | } |
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71 | } |
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72 | } |
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73 | for (EdgeIt it(graph); it != INVALID; ++it) { |
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74 | check(found[it] == true, "The edge is not found."); |
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75 | } |
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76 | } |
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77 | |
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78 | } //namespace lemon |
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79 | |
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80 | |
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81 | #endif |
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