libs/graph/test/graph.cpp
//=======================================================================
// Copyright 2002 Indiana University.
// Authors: Andrew Lumsdaine, Lie-Quan Lee, Jeremy G. Siek
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//=======================================================================
#include <boost/config.hpp>
#include <iostream>
#include <vector>
#include <set>
#include <utility>
#include <algorithm>
#define VERBOSE 0
#include <boost/utility.hpp>
#include <boost/graph/graph_utility.hpp>
#include <boost/graph/random.hpp>
#include <boost/pending/indirect_cmp.hpp>
#include <boost/random/mersenne_twister.hpp>
enum vertex_id_t { vertex_id = 500 };
enum edge_id_t { edge_id = 501 };
namespace boost {
BOOST_INSTALL_PROPERTY(vertex, id);
BOOST_INSTALL_PROPERTY(edge, id);
}
#include "graph_type.hpp" // this provides a typedef for Graph
using namespace boost;
/*
This program tests models of the MutableGraph concept.
*/
using std::cout;
using std::endl;
using std::cerr;
using std::find;
template <class Graph, class Vertex, class ID>
bool check_vertex_cleared(Graph& g, Vertex v, ID id)
{
typename graph_traits<Graph>::vertex_iterator vi, viend;
for (boost::tie(vi,viend) = vertices(g); vi != viend; ++vi) {
typename graph_traits<Graph>::adjacency_iterator ai, aiend, found;
boost::tie(ai, aiend) = adjacent_vertices(*vi, g);
boost::indirect_cmp<ID, std::equal_to<std::size_t> > cmp(id);
#if (defined(BOOST_MSVC) && BOOST_MSVC <= 1300) && defined(__SGI_STL_PORT)
// seeing internal compiler errors when using std::find_if()
found = aiend;
for ( ; ai != aiend; ++ai)
if (cmp(*ai, v)) {
found = ai;
break;
}
#elif defined(BOOST_NO_CXX98_BINDERS)
found = std::find_if(ai, aiend, std::bind(cmp,v,std::placeholders::_1));
#else
found = std::find_if(ai, aiend, std::bind1st(cmp,v));
#endif
if ( found != aiend ) {
#if VERBOSE
std::cerr << "should not have found vertex " << id[*found] << std::endl;
#endif
return false;
}
}
return true;
}
template <class Graph, class Edge, class EdgeID>
bool check_edge_added(Graph& g, Edge e,
typename graph_traits<Graph>::vertex_descriptor a,
typename graph_traits<Graph>::vertex_descriptor b,
EdgeID edge_id, std::size_t correct_id,
bool inserted)
{
if (! (source(e, g) == a)) {
#if VERBOSE
cerr << " Failed, vertex a not source of e."<< endl;
#endif
return false;
} else if (! (target(e, g) == b)) {
#if VERBOSE
cerr << " Failed, vertex b not source of e."<< endl;
#endif
return false;
} else if (! is_adjacent(g, a, b)) {
#if VERBOSE
cerr << " Failed, not adj."<< endl;
#endif
return false;
} else if (! in_edge_set(g,e)) {
#if VERBOSE
cerr << " Failed, not in edge set."<< endl;
#endif
return false;
} else if (inserted && edge_id[e] != correct_id) {
#if VERBOSE
cerr << " Failed, invalid edge property."<< endl;
#endif
return false;
} else if (!inserted && edge_id[e] != edge_id[edge(a, b, g).first]) {
#if VERBOSE
cerr << " Failed, invalid edge property."<< endl;
#endif
return false;
} else if (num_edges(g) != count_edges(g)) {
#if VERBOSE
cerr << " Failed, invalid number of edges."<< endl;
#endif
return false;
}
return true;
}
template <class Graph>
std::size_t count_edges(Graph& g)
{
std::size_t e = 0;
typename boost::graph_traits<Graph>::edge_iterator ei,ei_end;
for (boost::tie(ei,ei_end) = edges(g); ei != ei_end; ++ei)
++e;
return e;
}
int main(int, char* [])
{
int ret = 0;
std::size_t N = 5, E = 0;
std::size_t old_N;
typedef ::Graph Graph;
Graph g;
typedef boost::graph_traits<Graph>::vertex_descriptor Vertex;
typedef boost::graph_traits<Graph>::edge_descriptor Edge;
int i, j;
std::size_t current_vertex_id = 0;
std::size_t current_edge_id = 0;
bool is_failed = false;
property_map<Graph, vertex_id_t>::type vertex_id_map = get(vertex_id, g);
property_map<Graph, edge_id_t>::type edge_id_map = get(edge_id, g);
for (std::size_t k = 0; k < N; ++k)
add_vertex(current_vertex_id++, g);
// also need to test EdgeIterator graph constructor -JGS
mt19937 gen;
for (j=0; j < 10; ++j) {
// add_edge
#if VERBOSE
cerr << "Testing add_edge ..." << endl;
#endif
for (i=0; i < 6; ++i) {
Vertex a, b;
a = random_vertex(g, gen);
do {
b = random_vertex(g, gen);
} while ( a == b ); // don't do self edges
#if VERBOSE
cerr << "add_edge(" << vertex_id_map[a] << "," << vertex_id_map[b] <<")" << endl;
#endif
Edge e;
bool inserted;
boost::tie(e, inserted) = add_edge(a, b, current_edge_id++, g);
#if VERBOSE
std::cout << "inserted: " << inserted << std::endl;
std::cout << "source(e,g)" << source(e,g) << endl;
std::cout << "target(e,g)" << target(e,g) << endl;
std::cout << "edge_id[e] = " << edge_id_map[e] << std::endl;
print_edges2(g, vertex_id_map, edge_id_map);
print_graph(g, vertex_id_map);
std::cout << "finished printing" << std::endl;
// print_in_edges(g, vertex_id_map);
#endif
if (! check_edge_added(g, e, a, b, edge_id_map,
current_edge_id - 1, inserted)) {
ret = -1;
break;
}
++E;
}
// remove_edge(u, v, g)
#if VERBOSE
cerr << "Testing remove_edge(u, v, g) ..." << endl; is_failed = false;
#endif
for (i = 0; i < 2; ++i) {
#if VERBOSE
print_edges(g, vertex_id_map);
#endif
Vertex a, b;
Edge e = random_edge(g, gen);
boost::tie(a,b) = boost::incident(e, g);
--E;
#if VERBOSE
cerr << "remove_edge(" << vertex_id_map[a] << "," << vertex_id_map[b] << ")" << endl;
#endif
remove_edge(a, b, g);
#if VERBOSE
print_graph(g, vertex_id_map);
// print_in_edges(g, vertex_id_map);
print_edges(g, vertex_id_map);
#endif
is_failed = is_failed || is_adjacent(g, a, b) || in_edge_set(g, a, b)
|| num_edges(g) != count_edges(g);
if (is_failed)
break;
}
if ( is_failed ) {
ret = -1;
#if VERBOSE
cerr << " Failed."<< endl;
#endif
} else {
#if VERBOSE
cerr << " Passed."<< endl;
#endif
}
// remove_edge(e, g)
#if VERBOSE
cerr << "Testing remove_edge(e, g) ..." << endl; is_failed = false;
#endif
for (i = 0; i < 2; ++i) {
#if VERBOSE
print_edges(g, vertex_id_map);
#endif
Vertex a, b;
Edge e = random_edge(g, gen);
boost::tie(a,b) = boost::incident(e, g);
--E;
#if VERBOSE
cerr << "remove_edge(" << vertex_id_map[a] << "," << vertex_id_map[b] << ")" << endl;
#endif
graph_traits<Graph>::edges_size_type old_E = num_edges(g);
remove_edge(e, g);
#if VERBOSE
print_graph(g, vertex_id_map);
// print_in_edges(g, vertex_id_map);
print_edges(g, vertex_id_map);
#endif
is_failed = is_failed || old_E != num_edges(g) + 1
|| num_edges(g) != count_edges(g);
if (is_failed)
break;
}
if ( is_failed ) {
ret = -1;
#if VERBOSE
cerr << " Failed."<< endl;
#endif
} else {
#if VERBOSE
cerr << " Passed."<< endl;
#endif
}
// add_vertex
#if VERBOSE
cerr << "Testing add_vertex ..." << endl; is_failed = false;
#endif
old_N = num_vertices(g);
graph_traits<Graph>::vertex_descriptor vid = add_vertex(g),
vidp1 = add_vertex(g);
vertex_id_map[vid] = current_vertex_id++;
vertex_id_map[vidp1] = current_vertex_id++;
#if VERBOSE
print_vertices(g,vertex_id_map);
print_graph(g,vertex_id_map);
// print_in_edges(g,vertex_id_map);
print_edges(g,vertex_id_map);
#endif
// make sure the two added vertices are in the graph's vertex set
{
if (!in_vertex_set(g, vid)) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vid] << " not in vertices(g)" << endl;
#endif
ret = -1;
break;
}
if (!in_vertex_set(g, vidp1)) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vidp1] << " not in vertices(g)" << endl;
#endif
ret = -1;
break;
}
}
// make sure the vertices do not have any out edges yet
{
graph_traits<Graph>::out_edge_iterator e, e_end;
boost::tie(e,e_end) = out_edges(vid,g);
if (e != e_end) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vid]
<< " should not have any out-edges yet" << endl;
#endif
ret = -1;
break;
}
boost::tie(e,e_end) = out_edges(vidp1,g);
if (e != e_end) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vidp1]
<< " should not have any out-edges yet" << endl;
#endif
ret = -1;
break;
}
}
// make sure the vertices do not yet appear in any of the edges
{
graph_traits<Graph>::edge_iterator e, e_end;
for (boost::tie(e, e_end) = edges(g); e != e_end; ++e) {
if (source(*e,g) == vid || target(*e,g) == vid) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vid]
<< " should not have any edges" << endl;
#endif
ret = -1;
break;
}
if (source(*e,g) == vidp1 || target(*e,g) == vidp1) {
#if VERBOSE
cerr << " Failed, " << vertex_id_map[vidp1]
<< " should not have any edges" << endl;
#endif
ret = -1;
break;
}
}
}
// Make sure num_vertices(g) has been updated
N = num_vertices(g);
if ( (N - 2) != old_N ) {
ret = -1;
#if VERBOSE
cerr << " Failed. N = " << N
<< " but should be " << old_N + 2 << endl;
#endif
break;
} else {
#if VERBOSE
cerr << " Passed."<< endl;
#endif
}
// add_edge again
#if VERBOSE
cerr << "Testing add_edge after add_vertex ..." << endl; is_failed = false;
#endif
for (i=0; i<2; ++i) {
Vertex a = random_vertex(g, gen), b = random_vertex(g, gen);
while ( a == vid ) a = random_vertex(g, gen);
while ( b == vidp1 ) b = random_vertex(g, gen);
Edge e;
bool inserted;
#if VERBOSE
cerr << "add_edge(" << vertex_id_map[vid] << "," << vertex_id_map[a] <<")" << endl;
#endif
boost::tie(e,inserted) = add_edge(vid, a, EdgeID(current_edge_id++), g);
if (! check_edge_added(g, e, vid, a, edge_id_map, current_edge_id - 1,
inserted)) {
ret = -1;
break;
}
#if VERBOSE
cerr << "add_edge(" << vertex_id_map[b] << "," << vertex_id_map[vidp1] <<")" << endl;
#endif
// add_edge without plugin
boost::tie(e,inserted) = add_edge(b, vidp1, g);
if (inserted)
edge_id_map[e] = current_edge_id;
++current_edge_id;
if (! check_edge_added(g, e, b, vidp1, edge_id_map,
current_edge_id - 1, inserted)) {
ret = -1;
break;
}
}
// clear_vertex
Vertex c = random_vertex(g, gen);
#if VERBOSE
cerr << "Testing clear vertex ..." << endl; is_failed = false;
print_graph(g, vertex_id_map);
// print_in_edges(g, vertex_id_map);
cerr << "clearing vertex " << vertex_id_map[c] << endl;
#endif
clear_vertex(c, g);
#if VERBOSE
print_graph(g, vertex_id_map);
// print_in_edges(g, vertex_id_map);
print_edges(g, vertex_id_map);
#endif
if (check_vertex_cleared(g, c, vertex_id_map) && num_edges(g) == count_edges(g)) {
#if VERBOSE
cerr << " Passed."<< endl;
#endif
} else {
#if VERBOSE
cerr << "**** Failed" << endl;
#endif
ret = -1;
break;
}
#if VERBOSE
cerr << "Testing remove vertex ..." << endl; is_failed = false;
cerr << "removing vertex " << vertex_id_map[c] << endl;
#endif
old_N = num_vertices(g);
remove_vertex(c, g);
#if VERBOSE
print_graph(g,vertex_id_map);
// print_in_edges(g,vertex_id_map);
print_edges(g, vertex_id_map);
#endif
// can't check in_vertex_set here because the vertex_descriptor c
// is no longer valid, we'll just make sure the vertex set has
// one fewer vertex
{
graph_traits<Graph>::vertex_iterator v, v_end;
boost::tie(v, v_end) = vertices(g);
for (N = 0; v != v_end; ++v) ++N; // N = std::distance(v, v_end);
if (N != old_N - 1) {
ret = -1;
#if VERBOSE
cerr << " Failed. N = " << N
<< " but should be " << old_N - 1 << endl;
#endif
}
}
N = num_vertices(g);
if (N != old_N - 1) {
ret = -1;
#if VERBOSE
cerr << " Failed. N = " << N
<< " but should be " << old_N - 1 << endl;
#endif
} else {
#if VERBOSE
cerr << " Passed."<< endl;
#endif
}
}
if (ret == 0)
std::cout << "tests passed" << std::endl;
return ret;
}