def test_interface_fields_missing_model_file_load(self):
err_msg = 'node_name, remote_node_name, name, cost, capacity, circuit_id must be defined for line'
with self.assertRaises(ModelException) as context:
Parallel_Link_Model.load_model_file(
'test/interface_field_info_missing_routing_topology_multidigraph.csv'
)
self.assertTrue(err_msg in err_msg in context.exception.args[0])
def test_unroutable_demand(self):
node_a = Node(name='nodeA', lat=0, lon=0)
node_b = Node(name='nodeB', lat=0, lon=0)
node_d = Node(name='nodeD')
interface_a = Interface(name='inerfaceA-to-B',
cost=4,
capacity=100,
node_object=node_a,
remote_node_object=node_b,
circuit_id=1)
interface_b = Interface(name='inerfaceB-to-A',
cost=4,
capacity=100,
node_object=node_b,
remote_node_object=node_a,
circuit_id=1)
dmd_a_d = Demand(node_a, node_d, traffic=10)
model = Parallel_Link_Model(interface_objects=set(
[interface_a, interface_b]),
node_objects=set([node_a, node_b, node_d]),
demand_objects=set([dmd_a_d]),
rsvp_lsp_objects=set([]))
model.update_simulation()
self.assertEqual(dmd_a_d.path, 'Unrouted')
def test_for_bad_node_in_lsp_data(self):
err_msg = "No Node with name Y in Model"
with self.assertRaises(ModelException) as context:
Parallel_Link_Model.load_model_file(
'test/parallel_link_model_bad_node_in_lsp.csv')
self.assertIn(err_msg, context.exception.args[0])
def test_mismatched_circuit_id(self):
"""
Check that each circuit_id value appears exactly twice in the model file
"""
msg = (
"Each circuit_id value must appear exactly twice; the following circuit_id values do not meet "
"that criteria:")
with self.assertRaises(ModelException) as context:
Parallel_Link_Model.load_model_file(
'test/parallel_link_model_bad_circuit_id.csv')
self.assertIn(msg, context.exception.args[0])
def test_ckt_mismatch_int_capacity_file_load(self):
err_msg = 'circuits_with_mismatched_interface_capacity'
model = Parallel_Link_Model.load_model_file(
'test/mismatched_ckt_int_capacity_topology_parallel_links.csv')
with self.assertRaises(ModelException) as context:
model.update_simulation()
self.assertTrue(err_msg in context.exception.args[0][1][0].keys())
def test_failed_node_interfaces(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
model.fail_node('A')
model.update_simulation()
self.assertEqual(len(model.get_failed_interface_objects()), 10)
def test_fail_node(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
model.fail_node('A')
model.update_simulation()
self.assertTrue(model.get_node_object('A').failed)
def test_get_unfailed_ints_2(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
model.fail_interface('A-to-B', 'A')
model.update_simulation()
self.assertEqual(len(model.get_unfailed_interface_objects()), 38)
def setUpClass(self):
self.model = Parallel_Link_Model.load_model_file(
'test/test_rsvp_3rd_lsp_2_paths_parallel_links.csv')
self.lsp_a_e_1 = self.model.get_rsvp_lsp('A', 'E', 'lsp_a_e_1')
self.lsp_a_e_2 = self.model.get_rsvp_lsp('A', 'E', 'lsp_a_e_2')
self.lsp_a_e_3 = self.model.get_rsvp_lsp('A', 'E', 'lsp_a_e_3')
self.model.update_simulation()
def test_failed_int_node_srlg(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
int_a_b = model.get_interface_object('A-to-B', 'A')
int_b_a = int_a_b.get_remote_interface(model)
node_a = model.get_node_object('A')
model.add_srlg('new_srlg')
model.update_simulation()
int_a_b.add_to_srlg('new_srlg', model)
model.update_simulation()
srlg = model.get_srlg_object('new_srlg')
model.fail_node('A')
model.fail_srlg('new_srlg')
model.update_simulation()
self.assertTrue(int_a_b.failed)
self.assertTrue(int_b_a.failed)
# Unfail the SRLG, int_a_b and int_b_a should stay failed
model.unfail_srlg('new_srlg')
model.update_simulation()
self.assertFalse(srlg.failed)
self.assertTrue(node_a.failed)
self.assertTrue(int_a_b.failed)
self.assertTrue(int_b_a.failed)
def test_int_in_SRLG_failed_node(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
int_a_b = model.get_interface_object('A-to-B', 'A')
int_b_a = int_a_b.get_remote_interface(model)
int_a_b.add_to_srlg('new_srlg', model, create_if_not_present=True)
int_a_b.add_to_srlg('new_srlg_2', model, create_if_not_present=True)
new_srlg = model.get_srlg_object('new_srlg')
model.fail_node('A')
model.fail_srlg('new_srlg')
model.update_simulation()
self.assertTrue(new_srlg.failed)
self.assertTrue(int_a_b.failed)
model.unfail_srlg('new_srlg')
model.update_simulation()
# int_a_b and int_b_a should stay failed since Node('A') is also failed
self.assertTrue(int_a_b.failed)
self.assertTrue(int_b_a.failed)
def test_get_bad_srlg_no_exception(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
bad_srlg = model.get_srlg_object('bad_srlg', raise_exception=False)
self.assertEqual(bad_srlg, None)
def setUpClass(self):
self.maxDiff = None
self.node_a = Node(name='nodeA', lat=0, lon=0)
self.node_b = Node(name='nodeB', lat=0, lon=0)
self.interface_a = Interface(name='inerfaceA-to-B',
cost=4,
capacity=100,
node_object=self.node_a,
remote_node_object=self.node_b,
circuit_id=1)
self.interface_b = Interface(name='inerfaceB-to-A',
cost=4,
capacity=100,
node_object=self.node_b,
remote_node_object=self.node_a,
circuit_id=1)
self.rsvp_lsp_a = RSVP_LSP(source_node_object=self.node_a,
dest_node_object=self.node_b,
lsp_name='A-to-B')
self.model = Parallel_Link_Model(
interface_objects=set([self.interface_a, self.interface_b]),
node_objects=set([self.node_a, self.node_b]),
demand_objects=set([]),
rsvp_lsp_objects=set([self.rsvp_lsp_a]))
self.demand = Demand(source_node_object=self.node_a,
dest_node_object=self.node_b,
traffic=10,
name='A-to-B')
def test_remove_interface_from_srlg(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
int_a_b = model.get_interface_object('A-to-B', 'A')
int_b_a = int_a_b.get_remote_interface(model)
model.add_srlg('new_srlg')
model.update_simulation()
int_a_b.add_to_srlg('new_srlg', model)
model.update_simulation()
srlg = model.get_srlg_object('new_srlg')
self.assertIn(int_a_b, srlg.interface_objects)
self.assertIn(int_b_a, srlg.interface_objects)
self.assertIn(srlg, int_a_b.srlgs)
self.assertIn(srlg, int_b_a.srlgs)
int_b_a.remove_from_srlg('new_srlg', model)
model.update_simulation()
self.assertNotIn(int_a_b, srlg.interface_objects)
self.assertNotIn(int_b_a, srlg.interface_objects)
self.assertNotIn(srlg, int_a_b.srlgs)
self.assertNotIn(srlg, int_b_a.srlgs)
def test_complex_topology_demand_path_2(self):
# Functional test for demand path across a topology where demand takes
# multiple ECMP paths. Some paths have parallel links, the other paths
# have multiple IGP shortcut LSPs
model = Parallel_Link_Model.load_model_file(
"test/igp_shortcuts_model_mult_lsps_in_path_parallel_links_2.csv")
model.update_simulation()
dmd_a_f = model.get_demand_object("A", "F", "dmd_a_f_1")
int_a_g = model.get_interface_object("A-G", "A")
int_g_f = model.get_interface_object("G-F", "G")
int_g_f_2 = model.get_interface_object("G-F_2", "G")
int_a_b = model.get_interface_object("A-B", "A")
int_d_e = model.get_interface_object("D-E", "D")
lsp_b_d_1 = model.get_rsvp_lsp("B", "D", "lsp_b_d_1")
lsp_b_d_2 = model.get_rsvp_lsp("B", "D", "lsp_b_d_2")
lsp_d_f_1 = model.get_rsvp_lsp("D", "F", "lsp_d_f_1")
dmd_a_f_path_1 = [int_a_g, int_g_f]
dmd_a_f_path_2 = [int_a_g, int_g_f_2]
dmd_a_f_path_3 = [int_a_b, lsp_b_d_1, lsp_d_f_1]
dmd_a_f_path_4 = [int_a_b, lsp_b_d_2, lsp_d_f_1]
self.assertIn(dmd_a_f_path_1, dmd_a_f.path)
self.assertIn(dmd_a_f_path_2, dmd_a_f.path)
self.assertIn(dmd_a_f_path_3, dmd_a_f.path)
self.assertIn(dmd_a_f_path_4, dmd_a_f.path)
self.assertEqual(4, len(dmd_a_f.path))
self.assertEqual(80, int_d_e.utilization)
def test_implied_node(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
node_x = model.get_node_object('X')
self.assertTrue(node_x in model.node_objects)
def test_int_in_two_SRLGs(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
int_a_b = model.get_interface_object('A-to-B', 'A')
model.update_simulation()
int_a_b.add_to_srlg('new_srlg', model, create_if_not_present=True)
int_a_b.add_to_srlg('new_srlg_2', model, create_if_not_present=True)
new_srlg = model.get_srlg_object('new_srlg')
new_srlg_2 = model.get_srlg_object('new_srlg_2')
model.fail_srlg('new_srlg')
model.fail_srlg('new_srlg_2')
model.update_simulation()
self.assertTrue(new_srlg.failed)
self.assertTrue(new_srlg_2.failed)
self.assertTrue(int_a_b.failed)
model.unfail_srlg('new_srlg')
model.update_simulation()
# node_a should stay failed since it's part of another SRLG
# that is still failed
self.assertTrue(int_a_b.failed)
def test_duplicate_srlg_2(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.add_srlg('new_srlg')
err_msg = 'SRLG with name new_srlg already exists in Model'
with self.assertRaises(ModelException) as context:
model.add_srlg('new_srlg')
self.assertTrue(err_msg in context.exception.args[0])
def test_get_bad_dmd(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
with self.assertRaises(ModelException) as context:
model.get_demand_object('F', 'A', 'bad_demand')
self.assertIn('no matching demand', context.exception.args[0])
def test_traffic_non_failed_int(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology_igp_only.csv')
model.update_simulation()
int_b_e = model.get_interface_object('B-to-E', 'B')
self.assertTrue(int_b_e.traffic, 10)
def test_get_ckt(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
ckt = model.get_circuit_object_from_interface('A-to-B', 'A')
self.assertIn(ckt, model.circuit_objects)
def test_get_bad_srlg(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
err_msg = 'No SRLG with name bad_srlg exists in Model'
with self.assertRaises(ModelException) as context:
model.get_srlg_object('bad_srlg')
self.assertTrue(err_msg in context.exception.args[0])
def test_equality(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology_igp_only.csv')
model.update_simulation()
ckt_1 = model.get_circuit_object_from_interface('A-to-B', 'A')
int_a, int_b = ckt_1.get_circuit_interfaces(model)
self.assertNotEqual(int_a, int_b)
def test_ckt_non_failure(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology_igp_only.csv')
model.update_simulation()
ckt_1 = model.get_circuit_object_from_interface('A-to-B', 'A')
self.assertFalse(ckt_1.failed(model))
def test_parallel_link_model_repr(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.add_demand('A', 'B', 40, 'dmd_a_b')
model.update_simulation()
self.assertEqual(
self.model.__repr__(),
'FlexModel(Interfaces: 40, Nodes: 10, Demands: 15, RSVP_LSPs: 4)')
def test_get_unrouted_dmds(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
model.fail_node('X')
model.update_simulation()
dmd_a_y = model.get_demand_object('A', 'Y', 'dmd_a_y_1')
self.assertTrue(dmd_a_y, model.get_unrouted_demand_objects())
def test_bad_ckt(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
with self.assertRaises(ModelException) as context:
model.get_circuit_object_from_interface('A-to-Z', 'A')
self.assertTrue(
'specified interface does not exist' in context.exception.args[0])
def test_all_paths_needed_bw(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology.csv')
model.update_simulation()
all_paths = model.get_all_paths_reservable_bw('A', 'D', False, 3, 105)
self.assertEqual(len(all_paths['path']), 1)
path_lengths = [len(path) for path in all_paths['path']]
path_lengths.sort()
self.assertEqual(path_lengths, [2])
def test_demands_non_failed(self):
model = Parallel_Link_Model.load_model_file(
'test/parallel_link_model_test_topology_igp_only.csv')
model.update_simulation()
int_b_e = model.get_interface_object('B-to-E', 'B')
dmd_a_e_1 = model.get_demand_object('A', 'E', 'dmd_a_e_1')
self.assertEqual(int_b_e.demands(model), [dmd_a_e_1])
def test_parallel_link_model_repr(self):
model = Parallel_Link_Model.load_model_file(
"test/parallel_link_model_test_topology.csv")
model.add_demand("A", "B", 40, "dmd_a_b")
model.update_simulation()
self.assertEqual(
self.model.__repr__(),
"FlexModel(Interfaces: 40, Nodes: 10, Demands: 15, RSVP_LSPs: 4)",
)
