diff -r d8475431bbbb -r 8e85e6bbefdf test/dijkstra_test.cc --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/test/dijkstra_test.cc Mon May 23 04:48:14 2005 +0000 @@ -0,0 +1,155 @@ +/* -*- C++ -*- + * test/dijkstra_test.cc - Part of LEMON, a generic C++ optimization library + * + * Copyright (C) 2005 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 "test_tools.h" +#include +#include +#include +#include +#include +#include +using namespace lemon; + +const int PET_SIZE =5; + + +void check_Dijkstra_BinHeap_Compile() +{ + typedef int VType; + typedef concept::StaticGraph Graph; + + typedef Graph::Edge Edge; + typedef Graph::Node Node; + typedef Graph::EdgeIt EdgeIt; + typedef Graph::NodeIt NodeIt; + typedef concept::ReadMap LengthMap; + + typedef Dijkstra DType; + + Graph G; + Node n; + Edge e; + VType l; + bool b; + DType::DistMap d(G); + DType::PredMap p(G); + // DType::PredNodeMap pn(G); + LengthMap cap; + + DType dijkstra_test(G,cap); + + dijkstra_test.run(n); + + l = dijkstra_test.dist(n); + e = dijkstra_test.pred(n); + n = dijkstra_test.predNode(n); + d = dijkstra_test.distMap(); + p = dijkstra_test.predMap(); + // pn = dijkstra_test.predNodeMap(); + b = dijkstra_test.reached(n); + + DirPath pp(G); + dijkstra_test.getPath(pp,n); +} + +void check_Dijkstra_Function_Compile() +{ + typedef int VType; + typedef concept::StaticGraph Graph; + + typedef Graph::Edge Edge; + typedef Graph::Node Node; + typedef Graph::EdgeIt EdgeIt; + typedef Graph::NodeIt NodeIt; + typedef concept::ReadMap LengthMap; + + dijkstra(Graph(),LengthMap(),Node()).run(); + dijkstra(Graph(),LengthMap()).source(Node()).run(); + dijkstra(Graph(),LengthMap()) + .predMap(concept::WriteMap()) + .distMap(concept::WriteMap()) + .run(Node()); + +} + + +int main() +{ + + typedef SmartGraph Graph; + + typedef Graph::Edge Edge; + typedef Graph::Node Node; + typedef Graph::EdgeIt EdgeIt; + typedef Graph::NodeIt NodeIt; + typedef Graph::EdgeMap LengthMap; + + Graph G; + Node s, t; + LengthMap cap(G); + PetStruct ps = addPetersen(G,PET_SIZE); + + for(int i=0;i + dijkstra_test(G, cap); + dijkstra_test.run(s); + + check(dijkstra_test.dist(t)==13,"Dijkstra found a wrong path."); + + + DirPath p(G); + check(dijkstra_test.getPath(p,t),"getPath() failed to set the path."); + check(p.length()==4,"getPath() found a wrong path."); + + + for(EdgeIt e(G); e!=INVALID; ++e) { + Node u=G.source(e); + Node v=G.target(e); + check( !dijkstra_test.reached(u) || + (dijkstra_test.dist(v) - dijkstra_test.dist(u) <= cap[e]), + "dist(target)-dist(source)- edge_length= " + << dijkstra_test.dist(v) - dijkstra_test.dist(u) + - cap[e]); + } + + ///\bug This works only for integer lengths + for(NodeIt v(G); v!=INVALID; ++v){ + check(dijkstra_test.reached(v),"Each node should be reached."); + if ( dijkstra_test.pred(v)!=INVALID ) { + Edge e=dijkstra_test.pred(v); + Node u=G.source(e); + check(u==dijkstra_test.predNode(v),"Wrong tree."); + check(dijkstra_test.dist(v) - dijkstra_test.dist(u) == cap[e], + "Wrong distance! Difference: " + << std::abs(dijkstra_test.dist(v) - dijkstra_test.dist(u) + - cap[e])); + } + } + + + { + NullMap myPredMap; + dijkstra(G,cap).predMap(myPredMap).run(s); + } + return 0; +}