def test_node_connect(self):
"""Test connecting one node to another"""
net = models.Network()
self.db.add(net)
self.db.commit()
node1 = models.Node(network=net)
node2 = models.Node(network=net)
node3 = models.Node(network=net)
node4 = models.Node(network=net)
# self.add(node1, node2, node3, node4)
# self.db.commit()
node1.connect(whom=node2)
assert node1.neighbors(direction="to") == [node2]
assert node2.neighbors(direction="from") == [node1]
node2.connect(whom=[node3, node4])
for n in node2.neighbors(direction="to"):
assert n in [node3, node4]
assert node3.neighbors(direction="from") == [node2]
assert_raises(ValueError, node1.connect, whom=node1)
net = models.Network()
self.add(net)
assert_raises(TypeError, node1.connect, whom=net)
def test_agent_transmit_everything_to_everyone(self):
net = models.Network()
self.db.add(net)
self.db.commit()
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
agent3 = nodes.ReplicatorAgent(network=net)
agent1.connect(direction="to", whom=agent2)
agent1.connect(direction="to", whom=agent3)
info = models.Info(origin=agent1, contents="foo")
agent1.transmit(what=models.Info, to_whom=nodes.Agent)
agent2.receive()
agent3.receive()
assert agent1.infos()[0].contents == agent2.infos()[0].contents
assert agent1.infos()[0].contents == agent3.infos()[0].contents
assert agent1.infos()[0].id != agent2.infos()[0].id != agent3.infos(
)[0].id
transmissions = info.transmissions()
assert len(transmissions) == 2
def test_transmit_selector_all_of_type(self):
net = models.Network()
self.db.add(net)
# Create a network of two biological nodes.
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
agent1.connect(direction="to", whom=agent2)
information.Meme(origin=agent1, contents="foo1")
information.Meme(origin=agent1, contents="foo2")
information.Meme(origin=agent1, contents="foo3")
information.Gene(origin=agent1, contents="bar")
assert len(agent1.infos(type=Meme)) == 3
assert len(agent2.infos(type=Meme)) == 0
assert len(agent1.infos(type=Gene)) == 1
assert len(agent2.infos(type=Gene)) == 0
# Transmit memes from agent 1 to 2.
agent1.transmit(what=information.Meme, to_whom=agent2)
# Receive the transmission.
agent2.receive()
# Make sure that Agent 2 has a blank memome and the right gene.
assert not agent2.infos(type=Gene)
assert len(agent2.infos(type=Meme)) == 3
def test_create_bidirectional_vectors(self):
"""Test creating a bidirectional connection between nodes"""
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
vector1 = models.Vector(origin=node1, destination=node2)
vector2 = models.Vector(origin=node2, destination=node1)
self.add(node1, node2, vector1, vector2)
assert vector1.origin_id == node1.id
assert vector1.destination_id == node2.id
assert vector2.origin_id == node2.id
assert vector2.destination_id == node1.id
assert node1.vectors(direction="incoming") == [vector2]
assert node1.vectors(direction="outgoing") == [vector1]
assert node2.vectors(direction="incoming") == [vector1]
assert node2.vectors(direction="outgoing") == [vector2]
assert node1.is_connected(direction="to", whom=node2)
assert node1.is_connected(direction="from", whom=node2)
assert node2.is_connected(direction="to", whom=node1)
assert node2.is_connected(direction="from", whom=node1)
assert len(node1.vectors(direction="incoming")) == 1
assert len(node2.vectors(direction="incoming")) == 1
assert len(node1.vectors(direction="outgoing")) == 1
assert len(node2.vectors(direction="outgoing")) == 1
assert len(vector1.transmissions()) == 0
assert len(vector2.transmissions()) == 0
def test_random_walk_from_source(self):
net = models.Network()
self.db.add(net)
self.db.commit()
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
agent3 = nodes.ReplicatorAgent(network=net)
agent1.connect(whom=agent2)
agent2.connect(whom=agent3)
source = nodes.RandomBinaryStringSource(network=net)
from operator import attrgetter
source.connect(
whom=min(net.nodes(type=Agent), key=attrgetter('creation_time')))
source.create_information()
processes.random_walk(net)
agent1.receive()
msg = agent1.infos()[0].contents
processes.random_walk(net)
agent2.receive()
agent2.infos()[0].contents
processes.random_walk(net)
agent3.receive()
agent3.infos()[0].contents
assert msg == agent3.infos()[0].contents
def test_create_transmission(self):
"""Try creating a transmission"""
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
self.add(node1, node2)
self.db.commit()
node1.connect(whom=node2)
info = models.Info(origin=node1)
node1.transmit(what=node1.infos()[0], to_whom=node2)
#transmission = models.Transmission(info=info, destination=node2)
#self.add(node1, node2, vector, info, transmission)
transmission = node1.transmissions()[0]
vector = node1.vectors()[0]
assert isinstance(transmission.id, int)
assert transmission.info_id == info.id
assert transmission.origin_id == vector.origin_id
assert transmission.destination_id == vector.destination_id
assert transmission.creation_time
assert transmission.vector == vector
assert vector.transmissions() == [transmission]
def test_identity_transformation(self):
net = models.Network()
self.add(net)
node = models.Node(network=net)
self.db.add(node)
self.db.commit()
info_in = models.Info(origin=node, contents="foo")
self.db.add(info_in)
self.db.commit()
node.replicate(info_in)
# # Create a new info based on the old one.
# info_out = models.Info(origin=node, contents=info_in.contents)
# self.db.add(info_in)
# self.db.commit()
# # Register the transformation.
# transformation = transformations.Replication(
# info_out=info_out,
# info_in=info_in)
# self.db.add(transformation)
# self.db.commit()
assert node.infos()[-1].contents == "foo"
assert len(node.infos()) == 2
def test_agent_transmit_no_connection(self):
net = models.Network()
self.db.add(net)
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
info = models.Info(origin=agent1, contents="foo")
agent1.transmit(what=info, to_whom=agent2)
def test_create_random_binary_string_source(self):
net = models.Network()
self.add(net)
source = nodes.RandomBinaryStringSource(network=net)
self.add(source)
assert source
def test_node_repr(self):
"""Test the repr of a node"""
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
self.add(node)
assert repr(node).split("-") == ["Node", str(node.id), "node"]
def test_network_base_add_node_not_implemented(self):
net = models.Network()
self.db.add(net)
self.db.commit()
node = models.Node(network=net)
self.db.add(net)
self.db.commit()
net.add_node(node)
def test_property_node(self):
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
node.property1 = "foo"
self.add(node)
assert node.property1 == "foo"
def test_different_node_ids(self):
"""Test that two nodes have different ids"""
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
self.add(node1, node2)
assert node1.id != node2.id
def test_info_repr(self):
"""Check the info repr"""
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
info = models.Info(origin=node)
self.add(info)
assert repr(info).split("-") == ["Info", str(info.id), "info"]
def test_create_memome(self):
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
info = information.Meme(origin=node)
self.db.commit()
assert info.type == "meme"
assert info.contents is None
def test_agent_transmit_invalid_info(self):
net = models.Network()
self.db.add(net)
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
agent1.connect(direction="to", whom=agent2)
info = models.Info(origin=agent2, contents="foo")
agent1.transmit(what=info, to_whom=agent2)
def test_create_replicator_agent(self):
net = models.Network()
self.db.add(net)
agent = nodes.ReplicatorAgent(network=net)
assert len(agent.infos()) is 0
info = information.Info(origin=agent, contents="foo")
assert agent.infos()[0] == info
def test_create_agent_generic_transmit_to_all(self):
net = models.Network()
self.db.add(net)
agent1 = nodes.Agent(network=net)
agent2 = nodes.Agent(network=net)
agent3 = nodes.Agent(network=net)
agent1.connect(direction="to", whom=agent2)
agent1.connect(direction="to", whom=agent3)
agent1.transmit(to_whom=models.Node)
def test_info_write_twice(self):
"""Overwrite an info's contents."""
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
info = models.Info(origin=node, contents="foo")
self.add(node, info)
assert info.contents == "foo"
info.contents = "ofo"
def test_fail_agent(self):
net = models.Network()
self.db.add(net)
agent = nodes.Agent(network=net)
self.db.commit()
assert agent.failed is False
assert agent.time_of_death is None
agent.fail()
assert agent.failed is True
assert agent.time_of_death is not None
def test_create_environment(self):
"""Create an environment"""
net = models.Network()
self.db.add(net)
environment = nodes.Environment(network=net)
information.State(origin=environment, contents="foo")
self.db.commit()
assert isinstance(environment.id, int)
assert environment.type == "environment"
assert environment.creation_time
assert environment.state().contents == "foo"
def test_kill_vector(self):
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
vector = models.Vector(origin=node1, destination=node2)
self.add(node1, node2, vector)
assert vector.failed is False
vector.fail()
assert vector.failed is True
def test_create_environment_get_observed(self):
net = models.Network()
self.db.add(net)
environment = nodes.Environment(network=net)
information.State(origin=environment, contents="foo")
agent = nodes.ReplicatorAgent(network=net)
environment.connect(direction="to", whom=agent)
environment.transmit(to_whom=agent)
agent.receive()
assert agent.infos()[0].contents == "foo"
def test_node_has_connection_from(self):
net = models.Network()
self.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
self.add(node1, node2)
self.db.commit()
node1.connect(whom=node2)
self.add(node1, node2)
assert not node1.is_connected(direction="from", whom=node2)
assert node2.is_connected(direction="from", whom=node1)
def test_create_vector(self):
"""Test creating a vector between two nodes"""
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
#vector = models.Vector(origin=node1, destination=node2)
#self.add(node1, node2, vector)
self.add(node1, node2)
self.db.commit()
node1.connect(whom=node2)
self._check_single_connection(node1, node2)
def test_create_node(self):
"""Create a basic node"""
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
self.add(node)
assert isinstance(node.id, int)
assert node.type == "node"
assert node.creation_time
assert len(node.infos()) == 0
assert len(node.vectors(direction="outgoing")) == 0
assert len(node.vectors(direction="incoming")) == 0
assert len(node.vectors(direction="outgoing")) == 0
assert len(node.vectors(direction="incoming")) == 0
def test_vector_repr(self):
"""Test the repr of a vector"""
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
vector1 = models.Vector(origin=node1, destination=node2)
vector2 = models.Vector(origin=node2, destination=node1)
self.add(node1, node2, vector1, vector2)
assert (repr(vector1).split("-") == [
"Vector", str(node1.id), str(node2.id)
])
assert (repr(vector2).split("-") == [
"Vector", str(node2.id), str(node1.id)
])
def test_create_info(self):
"""Try creating an info"""
net = models.Network()
self.db.add(net)
node = models.Node(network=net)
info = models.Info(origin=node, contents="foo")
self.add(node, info)
assert isinstance(info.id, int)
assert info.type == "info"
assert info.origin_id == node.id
assert info.creation_time
assert info.contents == "foo"
assert len(info.transmissions()) == 0
assert node.infos() == [info]
def test_moran_process_cultural(self):
# Create a fully-connected network.
net = models.Network()
self.db.add(net)
self.db.commit()
agent1 = nodes.ReplicatorAgent(network=net)
agent2 = nodes.ReplicatorAgent(network=net)
agent3 = nodes.ReplicatorAgent(network=net)
self.db.commit()
agent1.connect(whom=agent2)
agent1.connect(whom=agent3)
agent2.connect(whom=agent1)
agent2.connect(whom=agent3)
agent3.connect(whom=agent1)
agent3.connect(whom=agent2)
# Add a global source and broadcast to all the nodes.
source = nodes.RandomBinaryStringSource(network=net)
for agent in net.nodes(type=Agent):
source.connect(whom=agent)
source.transmit(to_whom=agent)
agent.receive()
# Run a Moran process for 100 steps.
for _ in xrange(100):
processes.moran_cultural(net)
for agent in net.nodes(type=Agent):
agent.receive()
# Ensure that the process had reached fixation.
from operator import attrgetter
assert max(agent1.infos(),
key=attrgetter('creation_time')).contents == max(
agent2.infos(),
key=attrgetter('creation_time')).contents
assert max(agent2.infos(),
key=attrgetter('creation_time')).contents == max(
agent3.infos(),
key=attrgetter('creation_time')).contents
assert max(agent3.infos(),
key=attrgetter('creation_time')).contents == max(
agent1.infos(),
key=attrgetter('creation_time')).contents
def test_transmission_repr(self):
net = models.Network()
self.db.add(net)
node1 = models.Node(network=net)
node2 = models.Node(network=net)
self.add(node1, node2)
node1.connect(whom=node2)
models.Info(origin=node1)
node1.transmit(what=node1.infos()[0], to_whom=node2)
transmission = node1.transmissions()[0]
node1.vectors()[0]
assert (repr(transmission).split("-") == [
"Transmission", str(transmission.id)
])
