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Agent Tests #560

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Merged
norvig merged 2 commits into from
Jun 27, 2017
Merged

Agent Tests #560

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4bf43e4
add RandomVacuumAgent + CompareAgents
antmarakis Jun 24, 2017
f080ec3
set random.seed
antmarakis Jun 26, 2017
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37 changes: 36 additions & 1 deletion tests/test_agents.py
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Original file line number Diff line number Diff line change
@@ -1,6 +1,11 @@
import random
from agents import Direction
from agents import Agent
from agents import ReflexVacuumAgent, ModelBasedVacuumAgent, TrivialVacuumEnvironment
from agents import ReflexVacuumAgent, ModelBasedVacuumAgent, TrivialVacuumEnvironment, compare_agents,\
RandomVacuumAgent


random.seed("aima-python")


def test_move_forward():
Expand Down Expand Up @@ -50,6 +55,19 @@ def test_add():
assert l2.direction == Direction.D


def test_RandomVacuumAgent() :
# create an object of the RandomVacuumAgent
agent = RandomVacuumAgent()
# create an object of TrivialVacuumEnvironment
environment = TrivialVacuumEnvironment()
# add agent to the environment
environment.add_thing(agent)
# run the environment
environment.run()
# check final status of the environment
assert environment.status == {(1,0):'Clean' , (0,0) : 'Clean'}


def test_ReflexVacuumAgent() :
# create an object of the ReflexVacuumAgent
agent = ReflexVacuumAgent()
Expand All @@ -76,6 +94,23 @@ def test_ModelBasedVacuumAgent() :
assert environment.status == {(1,0):'Clean' , (0,0) : 'Clean'}


def test_compare_agents() :
environment = TrivialVacuumEnvironment
agents = [ModelBasedVacuumAgent, ReflexVacuumAgent]

result = compare_agents(environment, agents)
performance_ModelBasedVacummAgent = result[0][1]
performance_ReflexVacummAgent = result[1][1]

# The performance of ModelBasedVacuumAgent will be at least as good as that of
# ReflexVacuumAgent, since ModelBasedVacuumAgent can identify when it has
# reached the terminal state (both locations being clean) and will perform
# NoOp leading to 0 performance change, whereas ReflexVacuumAgent cannot
# identify the terminal state and thus will keep moving, leading to worse
# performance compared to ModelBasedVacuumAgent.
assert performance_ReflexVacummAgent <= performance_ModelBasedVacummAgent


def test_Agent():
def constant_prog(percept):
return percept
Expand Down