spot/tests/python/bdditer.py
Alexandre Duret-Lutz 530cf7ca47 tests: replace all "assert" by unittest assertions
If the assert fails because of a comparison, it is useful that the
test suite log contains a comparison of these values.
unittest.assertEqual() and friends do that for us.

* HACKING: Add a section about Python tests.
* tests/sanity/style.test: Forbid the use of "assert" in
Python tests.
* tests/python/298.py, tests/python/341.py, tests/python/471.py,
tests/python/accparse2.py, tests/python/aiger.py,
tests/python/aliases.py, tests/python/alternating.py,
tests/python/bdddict.py, tests/python/bdditer.py,
tests/python/bugdet.py, tests/python/complement_semidet.py,
tests/python/declenv.py, tests/python/decompose_scc.py,
tests/python/det.py, tests/python/dualize.py, tests/python/ecfalse.py,
tests/python/except.py, tests/python/game.py, tests/python/gen.py,
tests/python/genem.py, tests/python/implies.py,
tests/python/intrun.py, tests/python/kripke.py,
tests/python/langmap.py, tests/python/ltl2tgba.py,
tests/python/ltlf.py, tests/python/ltlparse.py,
tests/python/ltlsimple.py, tests/python/mealy.py,
tests/python/merge.py, tests/python/mergedge.py,
tests/python/misc-ec.py, tests/python/optionmap.py,
tests/python/origstate.py, tests/python/otfcrash.py,
tests/python/parity.py, tests/python/parsetgba.py,
tests/python/pdegen.py, tests/python/prodexpt.py,
tests/python/randgen.py, tests/python/relabel.py,
tests/python/remfin.py, tests/python/removeap.py,
tests/python/rs_like.py, tests/python/satmin.py,
tests/python/sbacc.py, tests/python/sccfilter.py,
tests/python/sccinfo.py, tests/python/sccsplit.py,
tests/python/semidet.py, tests/python/setacc.py,
tests/python/setxor.py, tests/python/simplacc.py,
tests/python/simstate.py, tests/python/sonf.py, tests/python/split.py,
tests/python/streett_totgba.py, tests/python/streett_totgba2.py,
tests/python/stutter.py, tests/python/sum.py,
tests/python/synthesis.py, tests/python/toparity.py,
tests/python/toweak.py, tests/python/tra2tba.py,
tests/python/trival.py, tests/python/twagraph.py,
tests/python/zlktree.py: Replace all occurrences of "assert" by calls
to unittest.TestCase methods.
2022-03-07 09:03:21 +01:00

64 lines
1.9 KiB
Python

# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017, 2018, 2021, 2022 Laboratoire de Recherche et
# Développement de l'Epita (LRDE).
#
# This file is part of Spot, a model checking library.
#
# Spot 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.
#
# Spot 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 this program. If not, see <http://www.gnu.org/licenses/>.
# Tests different ways to explore a BDD label, as discussed in
# https://lists.lrde.epita.fr/hyperkitty/list/spot@lrde.epita.fr/\
# message/WIAOWDKKPXTTK6UBE3MAHDFWIT36EUMX/
import spot
import buddy
import sys
from unittest import TestCase
tc = TestCase()
run = spot.translate('a & !b').accepting_run()
b = run.prefix[0].label
c = buddy.bdd_satone(b)
tc.assertNotEqual(c, buddy.bddfalse)
res = []
while c != buddy.bddtrue:
var = buddy.bdd_var(c)
h = buddy.bdd_high(c)
if h == buddy.bddfalse:
res.append(-var)
c = buddy.bdd_low(c)
else:
res.append(var)
c = h
tc.assertEqual(res, [0, -1])
res2 = []
for i in run.aut.ap():
res2.append((str(i), run.aut.register_ap(i)))
tc.assertEqual(str(res2), "[('a', 0), ('b', 1)]")
f = spot.bdd_to_formula(b)
tc.assertTrue(f._is(spot.op_And))
tc.assertTrue(f[0]._is(spot.op_ap))
tc.assertTrue(f[1]._is(spot.op_Not))
tc.assertTrue(f[1][0]._is(spot.op_ap))
tc.assertEqual(str(f), 'a & !b')
try:
f = spot.bdd_to_formula(b, spot.make_bdd_dict())
sys.exit(2)
except RuntimeError as e:
tc.assertIn("not in the dictionary", str(e))