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123 lines
3.7 KiB
Python
123 lines
3.7 KiB
Python
import os
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import io
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import tempfile
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import shutil
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import sqlite3
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from unittest import TestCase
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from soil import exporters
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from soil import environment
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from soil import simulation
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from soil import agents
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from soil import decorators
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from mesa import Agent as MesaAgent
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class Dummy(exporters.Exporter):
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started = False
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iterations = 0
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ended = False
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total_time = 0
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called_start = 0
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called_iteration = 0
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called_end = 0
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def sim_start(self):
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self.__class__.called_start += 1
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self.__class__.started = True
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def iteration_end(self, env, *args, **kwargs):
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assert env
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self.__class__.iterations += 1
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self.__class__.total_time += env.now
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self.__class__.called_iteration += 1
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def sim_end(self):
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self.__class__.ended = True
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self.__class__.called_end += 1
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class Exporters(TestCase):
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def test_basic(self):
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# We need to add at least one agent to make sure the scheduler
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# ticks every step
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class SimpleEnv(environment.Environment):
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def init(self):
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self.add_agent(agent_class=MesaAgent)
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iterations = 5
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max_time = 2
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s = simulation.Simulation(iterations=iterations,
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max_time=max_time, name="exporter_sim",
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exporters=[Dummy], dump=False, model=SimpleEnv)
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for env in s.run():
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assert len(env.agents) == 1
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assert Dummy.started
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assert Dummy.ended
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assert Dummy.called_start == 1
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assert Dummy.called_end == 1
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assert Dummy.called_iteration == iterations
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assert Dummy.iterations == iterations
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assert Dummy.total_time == max_time * iterations
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def test_writing(self):
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"""Try to write CSV, sqlite and YAML (without no_dump)"""
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n_iterations = 5
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n_nodes = 4
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max_time = 2
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output = io.StringIO()
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tmpdir = tempfile.mkdtemp()
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class ConstantEnv(environment.Environment):
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@decorators.report
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@property
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def constant(self):
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return 1
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s = simulation.Simulation(
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model=ConstantEnv,
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name="exporter_sim",
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exporters=[
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exporters.default,
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exporters.csv,
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],
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exporter_params={"copy_to": output},
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parameters=dict(
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network_generator="complete_graph",
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network_params={"n": n_nodes},
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agent_class=agents.CounterModel,
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agent_reporters={"times": "times"},
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),
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max_time=max_time,
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outdir=tmpdir,
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iterations=n_iterations,
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dump=True,
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)
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envs = s.run()
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result = output.getvalue()
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simdir = os.path.join(tmpdir, s.group or "", s.name)
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with open(os.path.join(simdir, "{}.dumped.yml".format(s.id))) as f:
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result = f.read()
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assert result
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try:
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dbpath = os.path.join(simdir, f"{s.name}.sqlite")
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db = sqlite3.connect(dbpath)
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cur = db.cursor()
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agent_entries = cur.execute("SELECT times FROM agents WHERE times > 0").fetchall()
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env_entries = cur.execute("SELECT constant from env WHERE constant == 1").fetchall()
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assert len(agent_entries) == n_nodes * n_iterations * max_time
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assert len(env_entries) == n_iterations * (max_time + 1) # +1 for the initial state
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for e in envs:
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with open(os.path.join(simdir, "{}.env.csv".format(e.id))) as f:
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result = f.read()
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assert result
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finally:
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shutil.rmtree(tmpdir)
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