test/graph_test.cc
author Alpar Juttner <alpar@cs.elte.hu>
Sat, 17 May 2008 06:30:02 +0100
changeset 156 e561aa7675de
parent 109 abddaa08b507
child 171 02f4d5d9bfd7
permissions -rw-r--r--
More flexible header names in .lgf + largely improved doc
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/* -*- C++ -*-
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 *
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 * This file is a part of LEMON, a generic C++ optimization library
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 *
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 * Copyright (C) 2003-2008
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 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
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 * (Egervary Research Group on Combinatorial Optimization, EGRES).
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 *
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 * Permission to use, modify and distribute this software is granted
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 * provided that this copyright notice appears in all copies. For
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 * precise terms see the accompanying LICENSE file.
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 *
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 * This software is provided "AS IS" with no warranty of any kind,
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 * express or implied, and with no claim as to its suitability for any
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 * purpose.
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 *
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 */
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#include <lemon/concepts/graph.h>
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#include <lemon/list_graph.h>
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#include <lemon/smart_graph.h>
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// #include <lemon/full_graph.h>
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// #include <lemon/grid_graph.h>
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#include <lemon/graph_utils.h>
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#include "test_tools.h"
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using namespace lemon;
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using namespace lemon::concepts;
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void check_concepts() {
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  { // checking digraph components
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    checkConcept<BaseGraphComponent, BaseGraphComponent >();
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    checkConcept<IDableGraphComponent<>, 
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      IDableGraphComponent<> >();
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    checkConcept<IterableGraphComponent<>, 
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      IterableGraphComponent<> >();
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    checkConcept<MappableGraphComponent<>, 
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      MappableGraphComponent<> >();
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  }
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  {
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    checkConcept<Graph, ListGraph>();    
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    checkConcept<Graph, SmartGraph>();    
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//     checkConcept<Graph, FullGraph>();    
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//     checkConcept<Graph, Graph>();    
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//     checkConcept<Graph, GridGraph>();
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  }
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}
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template <typename Graph>
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void check_item_counts(Graph &g, int n, int e) {
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  int nn = 0;
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  for (typename Graph::NodeIt it(g); it != INVALID; ++it) {
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    ++nn;
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  }
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  check(nn == n, "Wrong node number.");
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  //  check(countNodes(g) == n, "Wrong node number.");
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  int ee = 0;
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  for (typename Graph::ArcIt it(g); it != INVALID; ++it) {
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    ++ee;
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  }
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  check(ee == 2*e, "Wrong arc number.");
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  //  check(countArcs(g) == 2*e, "Wrong arc number.");
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  int uee = 0;
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  for (typename Graph::EdgeIt it(g); it != INVALID; ++it) {
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    ++uee;
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  }
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  check(uee == e, "Wrong edge number.");
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  //  check(countEdges(g) == e, "Wrong edge number.");
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}
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template <typename Graph>
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void check_graph_counts() {
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  TEMPLATE_GRAPH_TYPEDEFS(Graph);
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  Graph g;
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  check_item_counts(g,0,0);
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  Node
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    n1 = g.addNode(),
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    n2 = g.addNode(),
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    n3 = g.addNode();
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  Edge
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    e1 = g.addEdge(n1, n2),
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    e2 = g.addEdge(n2, n3);
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  check_item_counts(g,3,2);
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}
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template <typename Graph>
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void check_graph_validity() {
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  TEMPLATE_GRAPH_TYPEDEFS(Graph);
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  Graph g;
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  check_item_counts(g,0,0);
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  Node
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    n1 = g.addNode(),
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    n2 = g.addNode(),
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    n3 = g.addNode();
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  Edge
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    e1 = g.addEdge(n1, n2),
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    e2 = g.addEdge(n2, n3);
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  check(g.valid(n1), "Validity check");
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  check(g.valid(e1), "Validity check");
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  check(g.valid(g.direct(e1, true)), "Validity check");
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  check(!g.valid(g.nodeFromId(-1)), "Validity check");
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  check(!g.valid(g.edgeFromId(-1)), "Validity check");
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  check(!g.valid(g.arcFromId(-1)), "Validity check");
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}
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template <typename Graph>
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void check_graph_validity_erase() {
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  TEMPLATE_GRAPH_TYPEDEFS(Graph);
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  Graph g;
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  check_item_counts(g,0,0);
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  Node
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    n1 = g.addNode(),
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    n2 = g.addNode(),
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    n3 = g.addNode();
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  Edge
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    e1 = g.addEdge(n1, n2),
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    e2 = g.addEdge(n2, n3);
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  check(g.valid(n1), "Validity check");
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  check(g.valid(e1), "Validity check");
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  check(g.valid(g.direct(e1, true)), "Validity check");
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  g.erase(n1);
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  check(!g.valid(n1), "Validity check");
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  check(g.valid(n2), "Validity check");
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  check(g.valid(n3), "Validity check");
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  check(!g.valid(e1), "Validity check");
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  check(g.valid(e2), "Validity check");
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  check(!g.valid(g.nodeFromId(-1)), "Validity check");
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  check(!g.valid(g.edgeFromId(-1)), "Validity check");
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  check(!g.valid(g.arcFromId(-1)), "Validity check");
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}
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// void checkGridGraph(const GridGraph& g, int w, int h) {
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//   check(g.width() == w, "Wrong width");
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//   check(g.height() == h, "Wrong height");
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//   for (int i = 0; i < w; ++i) {
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//     for (int j = 0; j < h; ++j) {
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//       check(g.col(g(i, j)) == i, "Wrong col");
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//       check(g.row(g(i, j)) == j, "Wrong row");
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//     }
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//   }
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//   for (int i = 0; i < w; ++i) {
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//     for (int j = 0; j < h - 1; ++j) {
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//       check(g.source(g.down(g(i, j))) == g(i, j), "Wrong down");
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//       check(g.target(g.down(g(i, j))) == g(i, j + 1), "Wrong down");
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//     }
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//     check(g.down(g(i, h - 1)) == INVALID, "Wrong down");
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//   }
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//   for (int i = 0; i < w; ++i) {
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//     for (int j = 1; j < h; ++j) {
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//       check(g.source(g.up(g(i, j))) == g(i, j), "Wrong up");
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//       check(g.target(g.up(g(i, j))) == g(i, j - 1), "Wrong up");
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//     }
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//     check(g.up(g(i, 0)) == INVALID, "Wrong up");
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//   }
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//   for (int j = 0; j < h; ++j) {
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//     for (int i = 0; i < w - 1; ++i) {
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//       check(g.source(g.right(g(i, j))) == g(i, j), "Wrong right");
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//       check(g.target(g.right(g(i, j))) == g(i + 1, j), "Wrong right");      
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//     }
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//     check(g.right(g(w - 1, j)) == INVALID, "Wrong right");    
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//   }
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//   for (int j = 0; j < h; ++j) {
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//     for (int i = 1; i < w; ++i) {
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//       check(g.source(g.left(g(i, j))) == g(i, j), "Wrong left");
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//       check(g.target(g.left(g(i, j))) == g(i - 1, j), "Wrong left");      
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//     }
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//     check(g.left(g(0, j)) == INVALID, "Wrong left");    
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//   }
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// }
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int main() {
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  check_concepts();
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  check_graph_counts<ListGraph>();
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  check_graph_counts<SmartGraph>();
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  check_graph_validity_erase<ListGraph>();
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  check_graph_validity<SmartGraph>();
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//   {
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//     FullGraph g(5);
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//     check_item_counts(g, 5, 10);
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//   }
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//   {
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//     GridGraph g(5, 6);
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//     check_item_counts(g, 30, 49);
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//     checkGridGraph(g, 5, 6);
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//   }
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  std::cout << __FILE__ ": All tests passed.\n";
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  return 0;
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}