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mirror of https://github.com/gsi-upm/soil synced 2024-11-14 15:32:29 +00:00
soil/tests/test_time.py
J. Fernando Sánchez a1262edd2a Refactored time
Treating time and conditions as the same entity was getting confusing, and it
added a lot of unnecessary abstraction in a critical part (the scheduler).

The scheduling queue now has the time as a floating number (faster), the agent
id (for ties) and the condition, as well as the agent. The first three
elements (time, id, condition) can be considered as the "key" for the event.

To allow for agent execution to be "randomized" within every step, a new
parameter has been added to the scheduler, which makes it add a random number to
the key in order to change the ordering.

`EventedAgent.received` now checks the messages before returning control to the
user by default.
2022-10-20 12:15:25 +02:00

78 lines
2.1 KiB
Python

from unittest import TestCase
from soil import time, agents, environment
class TestMain(TestCase):
def test_cond(self):
'''
A condition should match a When if the concition is True
'''
t = time.Cond(lambda t: True)
f = time.Cond(lambda t: False)
for i in range(10):
w = time.When(i)
assert w == t
assert w is not f
def test_cond(self):
'''
Comparing a Cond to a Delta should always return False
'''
c = time.Cond(lambda t: False)
d = time.Delta(1)
assert c is not d
def test_cond_env(self):
'''
'''
times_started = []
times_awakened = []
times_asleep = []
times = []
done = []
class CondAgent(agents.BaseAgent):
def step(self):
nonlocal done
times_started.append(self.now)
while True:
times_asleep.append(self.now)
yield time.Cond(lambda agent: agent.now >= 10,
delta=2)
times_awakened.append(self.now)
if self.now >= 10:
break
done.append(self.now)
env = environment.Environment(agents=[{'agent_class': CondAgent}])
while env.schedule.time < 11:
times.append(env.now)
env.step()
assert env.schedule.time == 11
assert times_started == [0]
assert times_awakened == [10]
assert done == [10]
# The first time will produce the Cond.
assert env.schedule.steps == 6
assert len(times) == 6
while env.schedule.time < 13:
times.append(env.now)
env.step()
assert times == [0, 2, 4, 6, 8, 10, 11]
assert env.schedule.time == 13
assert times_started == [0, 11]
assert times_awakened == [10]
assert done == [10]
# Once more to yield the cond, another one to continue
assert env.schedule.steps == 7
assert len(times) == 7