rpnifs/tests/tests_rpn_mutate.py

100 lines
3.6 KiB
Python
Executable file

#!/usr/bin/python3
# Copyright 2020, 2023 Weber Yann
#
# This file is part of rpnifs.
#
# geneifs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# geneifs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with geneifs. If not, see <http://www.gnu.org/licenses/>.
#
import random
import unittest
try:
from tqdm import tqdm
except (ImportError, NameError) as e:
tqdm = lambda i, *args, **kwargs:iter(i)
try:
import pyrpn
except (ImportError, NameError) as e:
print("Error importing pyrpn. Try to run make.",
file=sys.stderr)
raise e
## TODO : test w_add_elt and w_mut_elt
class TestRpnExprMutation(unittest.TestCase):
def test_base_mutation(self):
""" Testing mutation without parameters """
expr = pyrpn.RPNExpr("", 3)
expr.mutate()
expr.mutate(n_mutations=10)
def test_mutation_params_len(self):
""" Testing some value for parameters checking resulting expr len """
tests = (
([1,1,0,0,0,(0,0,0),(0,0,0)], [1,0,100]),
([1,2,1,0,0,(0,0,0),(0,0,0)], [1/3]),
([1,2,0,1,0,(0,0,0),(0,0,0)], [2/3]),
([1,3,1,2,0,(0,0,0),(0,0,0)], [2/6]),
)
for p_args, f_args in tests:
params = pyrpn.RPNMutationParamsTuple(p_args)
with self.subTest(params=params):
self._generic_mutation_params_lentest(params, *f_args)
def test_random_int_mutation_params(self):
""" Testing int random values for parameters checking resulting expr len """
for _ in range(50):
m_params = [random.randint(1,20) for _ in range(4)]
expt_len = (m_params[0]-m_params[1])/sum(m_params)
expt_len = 0 if expt_len < 0 else expt_len
params = [1] + m_params + [(0,0,0),(0,0,0)]
params = pyrpn.RPNMutationParamsTuple(params)
with self.subTest(params=params):
self._generic_mutation_params_lentest(params, expt_len)
def test_random_float_mutation_params(self):
""" Testing float random values for parameters checking resulting expr len """
for _ in range(50):
m_params = [random.randint(0,20)/20 for _ in range(4)]
expt_len = (m_params[0]-m_params[1])/sum(m_params)
expt_len = 0 if expt_len < 0 else expt_len
params = [1] + m_params + [(0,0,0),(0,0,0)]
params = pyrpn.RPNMutationParamsTuple(params)
with self.subTest(params=params):
self._generic_mutation_params_lentest(params, expt_len)
def _generic_mutation_params_lentest(self, params, expt_len, percent_error=.05,n_mut=5000):
expt_len = int(expt_len*n_mut)
expr = pyrpn.RPNExpr("", 3)
expr.mutate(n_mut, params)
msg = "Expected a len of %d ( [%d..%d] with %.1f%% error) but got %d"
self.assertTrue(abs(len(expr) - expt_len) <= n_mut*percent_error,
msg=msg % (expt_len,
expt_len + n_mut*percent_error,
expt_len - n_mut*percent_error,
percent_error*100,
len(expr)))
if __name__ == '__main__':
unittest.main()