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364 lines
12 KiB
Python
364 lines
12 KiB
Python
from unittest import TestCase
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import os
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import io
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import yaml
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import copy
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import pickle
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import networkx as nx
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from functools import partial
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from os.path import join
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from soil import (simulation, Environment, agents, network, serialization,
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utils)
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from soil.time import Delta
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ROOT = os.path.abspath(os.path.dirname(__file__))
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EXAMPLES = join(ROOT, '..', 'examples')
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class CustomAgent(agents.FSM, agents.NetworkAgent):
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@agents.default_state
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@agents.state
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def normal(self):
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self.neighbors = self.count_agents(state_id='normal',
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limit_neighbors=True)
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@agents.state
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def unreachable(self):
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return
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class TestMain(TestCase):
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def test_load_graph(self):
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"""
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Load a graph from file if the extension is known.
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Raise an exception otherwise.
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"""
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config = {
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'network_params': {
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'path': join(ROOT, 'test.gexf')
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}
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}
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G = network.from_config(config['network_params'])
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assert G
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assert len(G) == 2
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with self.assertRaises(AttributeError):
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config = {
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'network_params': {
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'path': join(ROOT, 'unknown.extension')
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}
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}
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G = network.from_config(config['network_params'])
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print(G)
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def test_generate_barabasi(self):
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"""
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If no path is given, a generator and network parameters
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should be used to generate a network
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"""
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cfg = {
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'params': {
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'generator': 'barabasi_albert_graph'
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}
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}
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with self.assertRaises(Exception):
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G = network.from_config(cfg)
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cfg['params']['n'] = 100
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cfg['params']['m'] = 10
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G = network.from_config(cfg)
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assert len(G) == 100
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def test_empty_simulation(self):
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"""A simulation with a base behaviour should do nothing"""
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config = {
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'network_params': {
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'path': join(ROOT, 'test.gexf')
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},
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'agent_type': 'BaseAgent',
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'environment_params': {
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}
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}
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s = simulation.from_old_config(config)
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s.run_simulation(dry_run=True)
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def test_network_agent(self):
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"""
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The initial states should be applied to the agent and the
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agent should be able to update its state."""
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config = {
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'name': 'CounterAgent',
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'network_params': {
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'generator': nx.complete_graph,
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'n': 2,
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},
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'agent_type': 'CounterModel',
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'states': {
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0: {'times': 10},
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1: {'times': 20},
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},
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'max_time': 2,
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'num_trials': 1,
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'environment_params': {
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}
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}
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s = simulation.from_old_config(config)
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def test_counter_agent(self):
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"""
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The initial states should be applied to the agent and the
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agent should be able to update its state."""
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config = {
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'version': '2',
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'general': {
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'name': 'CounterAgent',
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'max_time': 2,
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'dry_run': True,
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'num_trials': 1,
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},
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'topologies': {
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'default': {
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'path': join(ROOT, 'test.gexf')
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}
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},
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'agents': {
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'default': {
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'agent_class': 'CounterModel',
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},
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'counters': {
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'topology': 'default',
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'fixed': [{'state': {'times': 10}}, {'state': {'times': 20}}],
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}
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}
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}
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s = simulation.from_config(config)
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env = s.get_env()
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assert isinstance(env.agents[0], agents.CounterModel)
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assert env.agents[0].topology == env.topologies['default']
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assert env.agents[0]['times'] == 10
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assert env.agents[0]['times'] == 10
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env.step()
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assert env.agents[0]['times'] == 11
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assert env.agents[1]['times'] == 21
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def test_custom_agent(self):
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"""Allow for search of neighbors with a certain state_id"""
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config = {
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'network_params': {
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'path': join(ROOT, 'test.gexf')
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},
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'network_agents': [{
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'agent_type': CustomAgent,
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'weight': 1
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}],
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'max_time': 10,
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'environment_params': {
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}
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}
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s = simulation.from_old_config(config)
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env = s.run_simulation(dry_run=True)[0]
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assert env.agents[1].count_agents(state_id='normal') == 2
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assert env.agents[1].count_agents(state_id='normal', limit_neighbors=True) == 1
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assert env.agents[0].neighbors == 1
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def test_torvalds_example(self):
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"""A complete example from a documentation should work."""
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config = serialization.load_file(join(EXAMPLES, 'torvalds.yml'))[0]
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config['network_params']['path'] = join(EXAMPLES,
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config['network_params']['path'])
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s = simulation.from_old_config(config)
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env = s.run_simulation(dry_run=True)[0]
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for a in env.network_agents:
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skill_level = a.state['skill_level']
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if a.id == 'Torvalds':
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assert skill_level == 'God'
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assert a.state['total'] == 3
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assert a.state['neighbors'] == 2
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elif a.id == 'balkian':
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assert skill_level == 'developer'
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assert a.state['total'] == 3
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assert a.state['neighbors'] == 1
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else:
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assert skill_level == 'beginner'
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assert a.state['total'] == 3
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assert a.state['neighbors'] == 1
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def test_yaml(self):
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"""
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The YAML version of a newly created configuration should be equivalent
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to the configuration file used.
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Values not present in the original config file should have reasonable
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defaults.
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"""
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with utils.timer('loading'):
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config = serialization.load_file(join(EXAMPLES, 'complete.yml'))[0]
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s = simulation.from_old_config(config)
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with utils.timer('serializing'):
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serial = s.to_yaml()
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with utils.timer('recovering'):
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recovered = yaml.load(serial, Loader=yaml.SafeLoader)
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for (k, v) in config.items():
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assert recovered[k] == v
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# assert config == recovered
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def test_configuration_changes(self):
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"""
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The configuration should not change after running
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the simulation.
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"""
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config = serialization.load_file(join(EXAMPLES, 'complete.yml'))[0]
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s = simulation.from_old_config(config)
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init_config = copy.copy(s.config)
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s.run_simulation(dry_run=True)
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nconfig = s.config
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# del nconfig['to
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assert init_config == nconfig
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def test_save_geometric(self):
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"""
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There is a bug in networkx that prevents it from creating a GEXF file
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from geometric models. We should work around it.
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"""
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G = nx.random_geometric_graph(20, 0.1)
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env = Environment(topology=G)
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f = io.BytesIO()
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env.dump_gexf(f)
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def test_serialize_class(self):
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ser, name = serialization.serialize(agents.BaseAgent, known_modules=[])
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assert name == 'soil.agents.BaseAgent'
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assert ser == agents.BaseAgent
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ser, name = serialization.serialize(agents.BaseAgent, known_modules=['soil', ])
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assert name == 'BaseAgent'
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assert ser == agents.BaseAgent
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ser, name = serialization.serialize(CustomAgent)
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assert name == 'test_main.CustomAgent'
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assert ser == CustomAgent
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pickle.dumps(ser)
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def test_serialize_builtin_types(self):
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for i in [1, None, True, False, {}, [], list(), dict()]:
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ser, name = serialization.serialize(i)
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assert type(ser) == str
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des = serialization.deserialize(name, ser)
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assert i == des
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def test_serialize_agent_type(self):
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'''A class from soil.agents should be serialized without the module part'''
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ser = agents.serialize_type(CustomAgent)
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assert ser == 'test_main.CustomAgent'
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ser = agents.serialize_type(agents.BaseAgent)
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assert ser == 'BaseAgent'
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pickle.dumps(ser)
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def test_deserialize_agent_distribution(self):
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agent_distro = [
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{
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'agent_type': 'CounterModel',
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'weight': 1
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},
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{
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'agent_type': 'test_main.CustomAgent',
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'weight': 2
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},
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]
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converted = agents.deserialize_definition(agent_distro)
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assert converted[0]['agent_type'] == agents.CounterModel
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assert converted[1]['agent_type'] == CustomAgent
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pickle.dumps(converted)
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def test_serialize_agent_distribution(self):
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agent_distro = [
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{
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'agent_type': agents.CounterModel,
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'weight': 1
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},
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{
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'agent_type': CustomAgent,
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'weight': 2
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},
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]
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converted = agents.serialize_definition(agent_distro)
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assert converted[0]['agent_type'] == 'CounterModel'
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assert converted[1]['agent_type'] == 'test_main.CustomAgent'
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pickle.dumps(converted)
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def test_subgraph(self):
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'''An agent should be able to subgraph the global topology'''
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G = nx.Graph()
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G.add_node(3)
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G.add_edge(1, 2)
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distro = agents.calculate_distribution(agent_type=agents.NetworkAgent)
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env = Environment(name='Test', topology=G, network_agents=distro)
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lst = list(env.network_agents)
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a2 = env.get_agent(2)
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a3 = env.get_agent(3)
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assert len(a2.subgraph(limit_neighbors=True)) == 2
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assert len(a3.subgraph(limit_neighbors=True)) == 1
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assert len(a3.subgraph(limit_neighbors=True, center=False)) == 0
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assert len(a3.subgraph(agent_type=agents.NetworkAgent)) == 3
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def test_templates(self):
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'''Loading a template should result in several configs'''
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configs = serialization.load_file(join(EXAMPLES, 'template.yml'))
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assert len(configs) > 0
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def test_until(self):
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config = {
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'name': 'until_sim',
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'network_params': {},
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'agent_type': 'CounterModel',
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'max_time': 2,
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'num_trials': 50,
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'environment_params': {}
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}
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s = simulation.from_old_config(config)
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runs = list(s.run_simulation(dry_run=True))
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over = list(x.now for x in runs if x.now>2)
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assert len(runs) == config['num_trials']
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assert len(over) == 0
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def test_fsm(self):
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'''Basic state change'''
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class ToggleAgent(agents.FSM):
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@agents.default_state
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@agents.state
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def ping(self):
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return self.pong
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@agents.state
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def pong(self):
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return self.ping
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a = ToggleAgent(unique_id=1, model=Environment())
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assert a.state_id == a.ping.id
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a.step()
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assert a.state_id == a.pong.id
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a.step()
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assert a.state_id == a.ping.id
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def test_fsm_when(self):
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'''Basic state change'''
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class ToggleAgent(agents.FSM):
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@agents.default_state
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@agents.state
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def ping(self):
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return self.pong, 2
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@agents.state
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def pong(self):
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return self.ping
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a = ToggleAgent(unique_id=1, model=Environment())
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when = a.step()
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assert when == 2
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when = a.step()
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assert when == Delta(a.interval)
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