Exemplo n.º 1
0
TEST_F(GraphTest, testIsEdge)
{
    Graph::Node *n;
    n = g->get_node(108);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(24, nbrs.size());
    EXPECT_TRUE(g->is_edge(108, 100));

    n = g->get_node(80);
    list<int> nbrs2 = n->get_nbrs();
    EXPECT_EQ(22, nbrs2.size());
    EXPECT_FALSE(g->is_edge(80, 12));
}
TEST_F(VertexWeightedGraphTest, testGetNode)
{
    Graph::Node *n;
    n = wmg->get_node(108);
    list<int> nbrs = n->get_nbrs();
    EXPECT_EQ(24, nbrs.size());
}
Exemplo n.º 3
0
TEST_F(MutableGraphTest, testGetNode)
{
	Graph::Node *n;
	n = mg->get_node(108);
	list<int> nbrs = n->get_nbrs();
	EXPECT_EQ(24, nbrs.size());
}
void remove_all_edges(int i){
    list<int>::iterator it;
    Graph::Node *n = mg->get_node(i);
    list<int> nbrs = n->get_nbrs();
    for(it = nbrs.begin(); it != nbrs.end(); ++it){
        mg->remove_edge(i, *it);
    }
}
TEST_F(VertexWeightedGraphTest, testIsEdge)
{
    Graph::Node *n;
    n = wmg->get_node(108);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(24, nbrs.size());
    EXPECT_TRUE(wmg->is_edge(108, 100));
}
Exemplo n.º 6
0
TEST_F(MutableGraphTest, testIsEdge)
{
    Graph::Node *n;
    n = mg->get_node(108);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(24, nbrs.size());
    EXPECT_TRUE(mg->is_edge(108, 100));
}
Exemplo n.º 7
0
TEST_F(MutableGraphTest, testEliminateVertex)
{
	EXPECT_TRUE(mg->is_edge(108, 100));
	EXPECT_EQ(1471, mg->get_num_edges());
	EXPECT_EQ(24, mg->get_degree(108));
	EXPECT_EQ(24, mg->get_degree(100));

	Graph::Node *na;
	na = mg->get_node(108);
	list<int> nbrs_a = na->get_nbrs();
	vector<int> nbrsvec_a(nbrs_a.begin(), nbrs_a.end());

	Graph::Node *nb;
	nb = mg->get_node(100);
	list<int> nbrs_b = nb->get_nbrs();
	vector<int> nbrsvec_b(nbrs_b.begin(), nbrs_b.end());

	int common_nbrs = 0;
	int final_degree = 0;
	int new_edges = 0;

	for (int ia = 0; ia < nbrsvec_a.size(); ia++)
	{
		for (int ib = 0; ib < nbrsvec_b.size(); ib++)
		{
			if (nbrsvec_a[ia] == nbrsvec_b[ib])
			{
				common_nbrs++;
			}
		}
	}

	new_edges = mg->get_degree(108) - common_nbrs - 1;
	new_edges = new_edges + mg->get_degree(100) - 1;


	mg->eliminate_vertex(108, NULL, true);

	EXPECT_FALSE(mg->is_edge(108, 100));
	EXPECT_FALSE(mg->is_edge(100, 108));
	EXPECT_EQ(1597, mg->get_num_edges());
	EXPECT_EQ(new_edges, mg->get_degree(100));
	EXPECT_EQ(0, mg->get_degree(108));
}
Exemplo n.º 8
0
TEST_F(MutableGraphTest, testContractEdge)
{
	EXPECT_TRUE(mg->is_edge(108, 100));
	EXPECT_EQ(1471, mg->get_num_edges());
	EXPECT_EQ(24, mg->get_degree(108));
	EXPECT_EQ(24, mg->get_degree(100));

	Graph::Node *na;
	na = mg->get_node(108);
	list<int> nbrs_a = na->get_nbrs();
	vector<int> nbrsvec_a(nbrs_a.begin(), nbrs_a.end());

	Graph::Node *nb;
	nb = mg->get_node(100);
	list<int> nbrs_b = nb->get_nbrs();
	vector<int> nbrsvec_b(nbrs_b.begin(), nbrs_b.end());

	int common_nbrs = 0;
	int final_degree = 0;
	int new_edges = 0;

	for (int ia = 0; ia < nbrsvec_a.size(); ia++)
	{
		for (int ib = 0; ib < nbrsvec_b.size(); ib++)
		{
			if (nbrsvec_a[ia] == nbrsvec_b[ib])
			{
				common_nbrs++;
			}
		}
	}

	final_degree = mg->get_degree(108) + mg->get_degree(100) - common_nbrs - 2;
	new_edges = mg->get_num_edges() - common_nbrs - 1;

	int x = mg->contract_edge(108, 100);

	EXPECT_FALSE(mg->is_edge(108, 100));
	EXPECT_FALSE(mg->is_edge(100, 108));
	EXPECT_EQ(0, mg->get_degree(100));
	EXPECT_EQ(new_edges, mg->get_num_edges());
	EXPECT_EQ(final_degree, mg->get_degree(108));
}
TEST_F(GraphPropertyTest, testClique)
{
    Graph::Node *n;
    n = mg->get_node(108);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(24, nbrs.size());
    EXPECT_FALSE(properties.is_clique(mg, &nbrs));
    nbrs.push_back(108);
    properties.make_clique(mg, &nbrs);
    EXPECT_TRUE(properties.is_clique(mg, &nbrs));
}
Exemplo n.º 10
0
TEST_F(GraphUtilTest, testRecomputeDegree)
{
    Graph::Node *n = mg->get_node(36);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(29, nbrs.size());
    EXPECT_FALSE(mg->is_edge(36, 3));

    mg->add_edge(36, 3);
    EXPECT_EQ(30, mg->get_degree(36));
    mg->remove_edge(36, 3);

    nbrs.push_back(3);
    n->set_nbr(nbrs);
    nbrs = n->get_nbrs();
    EXPECT_EQ(30, nbrs.size());
    EXPECT_EQ(29, mg->get_degree(36));

    util.recompute_degrees(mg);
    EXPECT_EQ(30, mg->get_degree(36));
}
Exemplo n.º 11
0
TEST_F(GraphTest, testFuseVertices)
{
    EXPECT_FALSE(g->is_edge(80, 12));
    EXPECT_EQ(1471, g->get_num_edges());
    EXPECT_EQ(22, g->get_degree(80));
    EXPECT_EQ(19, g->get_degree(12));

    Graph::Node *na;
    na = g->get_node(80);
    list<int> nbrs_a = na->get_nbrs();
    vector<int> nbrsvec_a(nbrs_a.begin(), nbrs_a.end());

    Graph::Node *nb;
    nb = g->get_node(12);
    list<int> nbrs_b = nb->get_nbrs();
    vector<int> nbrsvec_b(nbrs_b.begin(), nbrs_b.end());

    int common_nbrs = 0;
    int final_degree = 0;
    int new_edges = 0;

    for(int ia = 0; ia < nbrsvec_a.size(); ia++){
        for(int ib = 0; ib < nbrsvec_b.size(); ib++){
            if(nbrsvec_a[ia] == nbrsvec_b[ib]){
                common_nbrs++;
            }
        }
    }

    final_degree = g->get_degree(80) + g->get_degree(12) - common_nbrs;
    new_edges = g->get_num_edges() - common_nbrs;

    int x = g->fuse_vertices(80, 12, false);

    EXPECT_FALSE(g->is_edge(80, 12));
    EXPECT_FALSE(g->is_edge(12, 80));
    EXPECT_EQ(0, g->get_degree(12));
    EXPECT_EQ(new_edges, g->get_num_edges());
    EXPECT_EQ(final_degree, g->get_degree(80));
}
TEST_F(MetisGraphReaderTest, testGetNode)
{
    //dim_writer->write_graph(g);

    creator.set_file_name("data/1dc.128.met");
    creator.set_graph_type("Metis");
    g = creator.create_graph();

    Graph::Node *n;
    n = g->get_node(108);
    list<int> nbrs = n->get_nbrs();
    EXPECT_EQ(24, nbrs.size());
}
Exemplo n.º 13
0
TEST_F(GraphPropertyTest, testIsPath)
{
    Graph::Node *n = mg->get_node(20);
    list<int> nbrs = n->get_nbrs();

    EXPECT_GT(nbrs.size(), 0);
    EXPECT_TRUE(properties.is_path(mg, nbrs.front(), nbrs.back()));

    remove_all_edges(nbrs.front());

    EXPECT_FALSE(properties.is_path(mg, nbrs.front(), nbrs.back()));
    EXPECT_GT(mg->get_num_edges(), 0);
}
Exemplo n.º 14
0
TEST_F(GraphReaderWriterFactoryTest, testDimacsGraphWriterGetNode)
{
	gw = factory.create_writer("dimacs", "data/dimacsout.out");
	gw->write_graph(g);

	creator.set_file_name("data/dimacsout.out");
	creator.set_graph_type("dimacs");
	g = creator.create_graph();
	Graph::Node *n;
	n = g->get_node(108);
	list<int> nbrs = n->get_nbrs();
	EXPECT_EQ(24, nbrs.size());
}
Exemplo n.º 15
0
TEST_F(DIMACSGraphWriterTest, testGetNode)
{
	dim_writer->write_graph(g);

	creator.set_file_name("../data/1dc.128.out");
	creator.set_graph_type("DIMACS");
	g = creator.create_graph();

	Graph::Node *n;
	n = g->get_node(108);
	list<int> nbrs = n->get_nbrs();
	EXPECT_EQ(24, nbrs.size());
}
Exemplo n.º 16
0
TEST_F(MetisGraphWriterTest, testIsEdge)
{
	dim_writer->write_graph(g);

	creator.set_file_name("../data/1dc.128.met");
	creator.set_graph_type("Metis");
	g = creator.create_graph();

	Graph::Node *n;
	n = g->get_node(108);
	list<int> nbrs = n->get_nbrs();

	EXPECT_EQ(24, nbrs.size());
	EXPECT_TRUE(g->is_edge(108, 100));

}
Exemplo n.º 17
0
TEST_F(DIMACSGraphWriterTest, testshuffle)
{
    string out_file("../data/1dc.128.out.shuf");
    dim_writer->set_out_file_name(out_file);
    dim_writer->shuffle(g, time(NULL));
	dim_writer->write_graph(g);

	creator.set_file_name("../data/1dc.128.out.shuf");
	creator.set_graph_type("DIMACS");
	g = creator.create_graph();

	Graph::Node *n;
	n = g->get_node(108);
	list<int> nbrs = n->get_nbrs();
	//BDS - problem if randomization happens to put a vertex of 
	//degree 24 in this location. Temporary fix.
	//EXPECT_NE(24, nbrs.size());
	EXPECT_NE(0, nbrs.size());
}
Exemplo n.º 18
0
TEST_F(GraphPropertyTest, testIsIndependentSet)
{
    Graph::Node *n = mg->get_node(20);
    list<int> nbrs = n->get_nbrs();
    EXPECT_FALSE(properties.is_independent_set(mg, &nbrs));

    list<int>::iterator it;
    list<int>::iterator jt;
    for(it = nbrs.begin(); it != nbrs.end(); ++it){
        // Remove all edges between them
        for(jt = nbrs.begin(); jt != nbrs.end(); ++jt){
            if(*it != *jt){
                mg->remove_edge(*it, *jt);
            }
        }
    }

    EXPECT_TRUE(properties.is_independent_set(mg, &nbrs));
    EXPECT_GT(mg->get_num_edges(), 0);
}
Exemplo n.º 19
0
TEST_F(GraphPropertyTest, testSimple)
{
    Graph::Node *n;
    n = mg->get_node(108);
    list<int> nbrs = n->get_nbrs();

    EXPECT_EQ(24, nbrs.size());
    EXPECT_TRUE(mg->is_edge(108, 100));

    EXPECT_EQ(24, mg->get_degree(108));
    mg->add_edge(108, 100);
    mg->add_edge(108, 108);

    EXPECT_EQ(1473, mg->get_num_edges());
    EXPECT_EQ(26, mg->get_degree(108));

    EXPECT_FALSE(properties.check_simple(mg));
    properties.make_simple(mg);
    EXPECT_TRUE(properties.check_simple(mg));
    EXPECT_EQ(24, mg->get_degree(108));
}