136 lines
4.5 KiB
Python
Executable file
136 lines
4.5 KiB
Python
Executable file
#!/usr/bin/python3
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# Copyright 2020, 2023 Weber Yann
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#
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# This file is part of rpnifs.
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#
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# geneifs is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# geneifs is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with geneifs. If not, see <http://www.gnu.org/licenses/>.
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#
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import copy
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import sys
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import random
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import math
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import pickle
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import unittest
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from unittest import skip
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IMAX = (1<<64)-1
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try:
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import pyrpn
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except (ImportError, NameError) as e:
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print("Error importing pyrpn. Try to run make.",
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file=sys.stderr)
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raise e
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class Test0RpnModule(unittest.TestCase):
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def test_init(self):
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""" RPNExpr instanciation """
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expr = pyrpn.RPNExpr("42", 2)
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def test_init_badargs(self):
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""" RPNExpr instanciation with bad arguments """
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badargs = [(), ('ab+',), ('ab+',300), (42, 42), ('ab', '42')]
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for badarg in badargs:
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with self.subTest(badargs=badarg):
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with self.assertRaises((ValueError, TypeError)):
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expr = pyrpn.RPNExpr(*badarg)
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def test_init_loop(self):
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""" Testing pyrpn.RPNExpr multiple instanciation """
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exprs = []
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for i in range(256):
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expr = pyrpn.RPNExpr("42", 2)
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def test_init_args(self):
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""" Testing pyrpn.RPNExpr instanciation with arguments """
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for argc in range(0, 256):
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with self.subTest("RPNExpr('42', %d)" % argc):
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expr = pyrpn.RPNExpr("42", argc)
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def test_init_stack_sz(self):
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""" Instanciate RPNExpr specifiing a stack_size """
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for argc in range(0,256, 8):
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for sz in range(4, 256, 2):
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with self.subTest("RPNExpr('42', %d,%d)" % (argc, sz)):
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expr = pyrpn.RPNExpr("42", argc, sz)
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def test_op_dict(self):
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""" Testing RPNExpr.get_ops() method """
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known_ops = dict([
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('add', '+'),
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('sub', '-'),
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('mul', '*'),
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('div', '/'),
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('mod', '%'),
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('neg', '!'),
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('not', '~'),
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('and', '&'),
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('or', '|'),
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('xor', '^'),
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('>>', 'r'),
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('<<', 'l'),
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('xchg', 'x'),
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('dup', 'd'),
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('pop', 'p'),
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])
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for long, short in pyrpn.get_ops().items():
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self.assertIn(long, known_ops)
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self.assertEqual(short, known_ops[long])
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def testing_rand_expr_len(self):
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""" Testing if RPNExpr.random_expr() returns expected expression """
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for _ in range(100):
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elen = random.randint(1, 50)
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rnd_expr = pyrpn.random_expr(20, elen)
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spl = [s for s in rnd_expr.split(' ') if len(s.strip())]
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with self.subTest(expected_tokens=elen, tokens_count=len(spl), expr=rnd_expr):
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self.assertEqual(len(spl), elen)
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def test_rand_expr(self):
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""" Testing RPNExpr.random_expr() """
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result = {}
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counters = {'vals': 0, 'args': 0}
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all_count = 0
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for sz in range(1,64,3):
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for argc in range(1,128):
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rnd_expr = pyrpn.random_expr(argc, sz)
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#print(repr(rnd_expr))
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for tok in rnd_expr.split(' '):
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all_count += 1
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if len(tok) == 0:
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continue
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try:
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itok = int(tok, 0)
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counters['vals'] += 1
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continue
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except Exception:
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pass
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if tok[0] == 'A':
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counters['args'] += 1
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else:
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if tok not in counters:
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counters[tok] = 0
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counters[tok] += 1
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all_ops = len(pyrpn.get_ops()) + 1
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entropy = 1-sum([(n/all_count)**2
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for _, n in counters.items()])
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self.assertGreater(entropy, 1-(1/all_ops), "Low entropy !")
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if __name__ == '__main__':
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unittest.main()
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