def run_random_trial(self):
G = nx.MultiDiGraph()
nodes = range(1, 10)
edges = generate_edges(nodes, 50)
G.add_edges_from(edges)
source = random.choice(G.nodes())
while True:
target = random.choice(G.nodes())
if target != source:
break
amount = random.randint(1, 10)
G.node[source]['demand'] = -amount
G.node[target]['demand'] = amount
cost, flow_dict, exception = None, None, None
try:
cost, flow_dict = min_cost_flow(G)
except nx.NetworkXException as e:
exception = e
H = unmulti(G)
try:
cost2, flow_dict2 = nx.network_simplex(H)
except nx.NetworkXException as e:
self.assertEquals(type(e) != type(exception))
self.assertEquals(cost, None)
else:
self.assertEquals(cost, cost2)
self.assertEquals(exception, None)
def run_random_trial(self):
G = nx.MultiDiGraph()
nodes = range(1, 10)
edges = generate_edges(nodes, 50)
G.add_edges_from(edges)
source = random.choice(G.nodes())
while True:
target = random.choice(G.nodes())
if target != source:
break
amount = random.randint(1, 10)
G.node[source]['demand'] = -amount
G.node[target]['demand'] = amount
cost, flow_dict, exception = None, None, None
try:
cost, flow_dict = min_cost_flow(G)
except nx.NetworkXException as e:
exception = e
H = unmulti(G)
try:
cost2, flow_dict2 = nx.network_simplex(H)
except nx.NetworkXException as e:
self.assertEquals(type(e) != type(exception))
self.assertEquals(cost, None)
else:
self.assertEquals(cost, cost2)
self.assertEquals(exception, None)
def setUp(self):
self.node_names = range(10)
for i in self.node_names:
Node.objects.create(alias=i)
random.seed(14)
edges = generate_edges(self.node_names, 50, p_reverse=0.7)
for u, v, data in edges:
node = Node.objects.get(alias=u)
account = Account.objects.get_or_create_account(
node, Node.objects.get(alias=v))
cl = CreditLine.objects.get(account=account, node=node)
cl.limit = data['capacity']
cl.save()
def setUp(self):
self.node_names = range(10)
for i in self.node_names:
Node.objects.create(alias=i)
random.seed(14)
edges = generate_edges(self.node_names, 50, p_reverse=0.7)
for u, v, data in edges:
node = Node.objects.get(alias=u)
account = Account.objects.get_or_create_account(
node, Node.objects.get(alias=v))
cl = CreditLine.objects.get(account=account, node=node)
cl.limit = data['capacity']
cl.save()