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62 lines
1.7 KiB
Python
62 lines
1.7 KiB
Python
from unittest import TestCase
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import pytest
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from soil import agents, environment
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from soil import time as stime
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class Dead(agents.FSM):
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@agents.default_state
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@agents.state
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def only(self):
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return self.die()
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class TestMain(TestCase):
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def test_die_returns_infinity(self):
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'''The last step of a dead agent should return time.INFINITY'''
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d = Dead(unique_id=0, model=environment.Environment())
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ret = d.step().abs(0)
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print(ret, "next")
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assert ret == stime.NEVER
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def test_die_raises_exception(self):
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'''A dead agent should raise an exception if it is stepped after death'''
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d = Dead(unique_id=0, model=environment.Environment())
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d.step()
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with pytest.raises(stime.DeadAgent):
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d.step()
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def test_agent_generator(self):
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'''
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The step function of an agent could be a generator. In that case, the state of the
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agent will be resumed after every call to step.
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'''
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class Gen(agents.BaseAgent):
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def step(self):
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a = 0
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for i in range(5):
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yield a
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a += 1
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e = environment.Environment()
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g = Gen(model=e, unique_id=e.next_id())
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for i in range(5):
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t = g.step()
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assert t == i
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def test_state_decorator(self):
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class MyAgent(agents.FSM):
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run = 0
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@agents.default_state
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@agents.state('original')
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def root(self):
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self.run += 1
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e = environment.Environment()
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a = MyAgent(model=e, unique_id=e.next_id())
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a.step()
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assert a.run == 1
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a.step()
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assert a.run == 2
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