spot/wrap/python/tests/setxor.py
Alexandre Duret-Lutz 9ad062b247 Fix two spurious segfaults in test cases for the Python interface.
* wrap/python/tests/setxor.py, wrap/python/tests/bddnqueen.py:
Clean all used bdd variables before calling bdd_done(), so that
bdd_delref() is never called after bdd_done().  In NDEBUG builds,
bdd_delref() does not check whether the BuDDy is running or not,
and calling it after bdd_done() will crash.
2011-04-09 17:33:42 +02:00

51 lines
1.6 KiB
Python
Executable file

# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2010, 2011 Laboratoire de Recherche et Développement
# de l'EPITA.
#
# 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 2 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 Spot; see the file COPYING. If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.
import sys
from buddy import *
bdd_init(10000, 10000)
bdd_setvarnum(5)
V = [bdd_ithvar(i) for i in range(5)]
a = V[0] & -V[1] & V[2] & -V[3]
b = V[0] & V[1] & V[2] & -V[3]
c = -V[0] & V[1] & -V[2] & -V[3]
assert(c == bdd_setxor(a,b))
assert(c == bdd_setxor(b,a))
assert(a == bdd_setxor(b,c))
assert(a == bdd_setxor(c,b))
assert(b == bdd_setxor(a,c))
assert(b == bdd_setxor(c,a))
d = V[1] & V[2] & -V[3] & V[4]
e = V[0] & V[1] & -V[2] & -V[3] & V[4]
assert(e == bdd_setxor(a,d))
assert(e == bdd_setxor(d,a))
# Cleanup all BDD variables before calling bdd_done(), otherwise
# bdd_delref will be called after bdd_done() and this is unsafe in
# optimized builds.
V = a = b = c = d = e = 0;
bdd_done()