def test_graph_creation(self):
generator = graph_util()
for deg in xrange(2, 11, 2):
for n_side in xrange(2*deg+4,33,7):
g_p = generator.generate_random_regular_bipartite(n_side, deg)
g_c_structure = graph.create_graph_structure_test(n_side)
g_c = graph.create_graph_edges_test(n_side)
# Create the graph in C
# first n vertices are on left, second n are on right
for edge in g_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
# Check that graph in C matches the graph in Python
for node in xrange(2 * n_side):
self.assertEqual(g_p.degree(node), graph.get_degree(g_c, node))
for node in xrange(2 * n_side):
if (g_p.degree(node) > 0):
self.assertTrue(graph.has_neighbor(g_c, node))
graph.destroy_graph_structure_test(g_c_structure)
graph.destroy_graph_edges_test(g_c)
pass
def test(self):
degree = 40
n_nodes = 15
# initialize kr
generator = kr_util()
kr = generator.build_kr(n_nodes, degree, print_debug=True)
# generate graph and arbitrary matching
g_p = graph_util().generate_random_regular_bipartite(n_nodes, degree)
arbitrary_p = graph_util().generate_random_regular_bipartite(n_nodes, 1)
# create the C versions of the graphs, and copies
g_c_structure = graph.create_graph_structure_test(n_nodes)
g_c = graph.create_graph_edges_test(n_nodes)
g_c_copy = graph.create_graph_edges_test(n_nodes)
for edge in g_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.copy_edges(g_c, g_c_copy, n_nodes)
self.assertEqual(graph.get_max_degree(g_c, n_nodes), degree)
self.assertEqual(graph.get_max_degree(g_c_copy, n_nodes), degree)
arbitrary_c = graph.create_graph_edges_test(n_nodes)
for edge in arbitrary_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.set_edge(g_c_structure, g_c_copy, arbitrary_c, edge[0], edge[1])
self.assertEqual(graph.get_max_degree(arbitrary_c, n_nodes), 1)
# solve
solution = kapoorrizzi.create_matching_set()
kapoorrizzi.solve(kr, g_c_structure, g_c_copy, arbitrary_c, solution)
# check solution
# check that we have the correct number of matchings
num_matchings = kapoorrizzi.get_num_matchings(solution)
self.assertEqual(num_matchings, degree + 1)
# check that each matching is a perfect matching
for i in range(num_matchings):
matching = kapoorrizzi.get_matching(solution, i)
self.assertTrue(graph.is_perfect_matching(matching, n_nodes))
# check sum of matchings equals the original graph
matchings_graph_c = graph.create_graph_edges_test(n_nodes)
for i in range(num_matchings):
matching = kapoorrizzi.get_matching(solution, i)
graph.add_edges(matchings_graph_c, matching, n_nodes)
self.assertTrue(graph.are_equal(matchings_graph_c, g_c, n_nodes))
# clean up
kapoorrizzi.destroy_kr(kr)
kapoorrizzi.destroy_matching_set(solution)
graph.destroy_graph_structure_test(g_c_structure)
graph.destroy_graph_edges_test(g_c)
graph.destroy_graph_edges_test(g_c_copy)
graph.destroy_graph_edges_test(arbitrary_c)
pass
def test_keeps_edge_set(self):
generator = graph_util()
for deg in xrange(2, 11, 2):
for n_side in xrange(2 * deg + 4, 33, 7):
g_p = generator.generate_random_regular_bipartite(n_side, deg)
# Create the graph in C
g_c_structure = graph.create_graph_structure_test(n_side)
g_c = graph.create_graph_edges_test(n_side)
g_c_copy = graph.create_graph_edges_test(n_side)
for edge in g_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.copy_edges(g_c, g_c_copy, n_side)
self.assertEqual(graph.get_max_degree(g_c, n_side), deg)
self.assertEqual(graph.get_max_degree(g_c_copy, n_side), deg)
# Create the output graphs
g1_c = graph.create_graph_edges_test(n_side)
g2_c = graph.create_graph_edges_test(n_side)
eulersplit.split(g_c_structure, g_c_copy, g1_c, g2_c)
# Check that the input graph is now empty
self.assertEqual(graph.get_max_degree(g_c_copy, n_side), 0)
for node in xrange(2 * n_side):
self.assertEqual(graph.get_degree(g_c_copy, node), 0)
# Check that graphs have the correct degree
self.assertEqual(graph.get_max_degree(g1_c, n_side), deg / 2)
self.assertEqual(graph.get_max_degree(g2_c, n_side), deg / 2)
# Check that vertices have the correct degree
for node in xrange(2 * n_side):
self.assertEqual(graph.get_degree(g1_c, node), deg / 2)
self.assertEqual(graph.get_degree(g2_c, node), deg / 2)
# Check that the combination of the two graphs equals the original graph
graph.add_edges(g1_c, g2_c, n_side)
self.assertTrue(graph.are_equal(g_c, g1_c, n_side))
graph.destroy_graph_structure_test(g_c_structure)
graph.destroy_graph_edges_test(g_c)
graph.destroy_graph_edges_test(g_c_copy)
graph.destroy_graph_edges_test(g1_c)
graph.destroy_graph_edges_test(g2_c)
pass
def test_keeps_edge_set(self):
generator = graph_util()
for deg in xrange(2, 11, 2):
for n_side in xrange(2*deg+4,33,7):
g_p = generator.generate_random_regular_bipartite(n_side, deg)
# Create the graph in C
g_c_structure = graph.create_graph_structure_test(n_side);
g_c = graph.create_graph_edges_test(n_side);
g_c_copy = graph.create_graph_edges_test(n_side)
for edge in g_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.copy_edges(g_c, g_c_copy, n_side)
self.assertEqual(graph.get_max_degree(g_c, n_side), deg)
self.assertEqual(graph.get_max_degree(g_c_copy, n_side), deg)
# Create the output graphs
g1_c = graph.create_graph_edges_test(n_side)
g2_c = graph.create_graph_edges_test(n_side)
eulersplit.split(g_c_structure, g_c_copy, g1_c, g2_c)
# Check that the input graph is now empty
self.assertEqual(graph.get_max_degree(g_c_copy, n_side), 0)
for node in xrange(2 * n_side):
self.assertEqual(graph.get_degree(g_c_copy, node), 0)
# Check that graphs have the correct degree
self.assertEqual(graph.get_max_degree(g1_c, n_side), deg / 2)
self.assertEqual(graph.get_max_degree(g2_c, n_side), deg / 2)
# Check that vertices have the correct degree
for node in xrange(2 * n_side):
self.assertEqual(graph.get_degree(g1_c, node), deg / 2)
self.assertEqual(graph.get_degree(g2_c, node), deg / 2)
# Check that the combination of the two graphs equals the original graph
graph.add_edges(g1_c, g2_c, n_side)
self.assertTrue(graph.are_equal(g_c, g1_c, n_side))
graph.destroy_graph_structure_test(g_c_structure)
graph.destroy_graph_edges_test(g_c)
graph.destroy_graph_edges_test(g_c_copy)
graph.destroy_graph_edges_test(g1_c)
graph.destroy_graph_edges_test(g2_c)
pass
def test(self):
degree = 40
n_nodes = 15
# initialize kr
generator = kr_util()
kr = generator.build_kr(n_nodes, degree, print_debug=True)
# generate graph and arbitrary matching
g_p = graph_util().generate_random_regular_bipartite(n_nodes, degree)
arbitrary_p = graph_util().generate_random_regular_bipartite(
n_nodes, 1)
# create the C versions of the graphs, and copies
g_c_structure = graph.create_graph_structure_test(n_nodes)
g_c = graph.create_graph_edges_test(n_nodes)
g_c_copy = graph.create_graph_edges_test(n_nodes)
for edge in g_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.copy_edges(g_c, g_c_copy, n_nodes)
self.assertEqual(graph.get_max_degree(g_c, n_nodes), degree)
self.assertEqual(graph.get_max_degree(g_c_copy, n_nodes), degree)
arbitrary_c = graph.create_graph_edges_test(n_nodes)
for edge in arbitrary_p.edges_iter():
graph.add_edge(g_c_structure, g_c, edge[0], edge[1])
graph.set_edge(g_c_structure, g_c_copy, arbitrary_c, edge[0],
edge[1])
self.assertEqual(graph.get_max_degree(arbitrary_c, n_nodes), 1)
# solve
solution = kapoorrizzi.create_matching_set()
kapoorrizzi.solve(kr, g_c_structure, g_c_copy, arbitrary_c, solution)
# check solution
# check that we have the correct number of matchings
num_matchings = kapoorrizzi.get_num_matchings(solution)
self.assertEqual(num_matchings, degree + 1)
# check that each matching is a perfect matching
for i in range(num_matchings):
matching = kapoorrizzi.get_matching(solution, i)
self.assertTrue(graph.is_perfect_matching(matching, n_nodes))
# check sum of matchings equals the original graph
matchings_graph_c = graph.create_graph_edges_test(n_nodes)
for i in range(num_matchings):
matching = kapoorrizzi.get_matching(solution, i)
graph.add_edges(matchings_graph_c, matching, n_nodes)
self.assertTrue(graph.are_equal(matchings_graph_c, g_c, n_nodes))
# clean up
kapoorrizzi.destroy_kr(kr)
kapoorrizzi.destroy_matching_set(solution)
graph.destroy_graph_structure_test(g_c_structure)
graph.destroy_graph_edges_test(g_c)
graph.destroy_graph_edges_test(g_c_copy)
graph.destroy_graph_edges_test(arbitrary_c)
pass