Commit 5f2d55ab authored by Alexandre Duret-Lutz's avatar Alexandre Duret-Lutz

python: do not crash when a function returns a null formula

* wrap/python/spot_impl.i: Map null formulas to None.
* wrap/python/tests/randgen.py: New file.
* wrap/python/tests/Makefile.am: Add it.
parent 24ef5a0b
...@@ -178,6 +178,13 @@ using namespace spot; ...@@ -178,6 +178,13 @@ using namespace spot;
}; };
%apply char** OUTPUT { char** err }; %apply char** OUTPUT { char** err };
%typemap(out) spot::formula {
if (!$1)
$result = SWIG_Py_Void();
else
$result = SWIG_NewPointerObj(new spot::formula($1), $descriptor(spot::formula*), SWIG_POINTER_OWN);
}
%exception { %exception {
try { try {
$action $action
......
...@@ -48,6 +48,7 @@ TESTS = \ ...@@ -48,6 +48,7 @@ TESTS = \
parsetgba.py \ parsetgba.py \
piperead.ipynb \ piperead.ipynb \
randaut.ipynb \ randaut.ipynb \
randgen.py \
randltl.ipynb \ randltl.ipynb \
relabel.py \ relabel.py \
setxor.py \ setxor.py \
......
# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2015 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/>.
# This is a python translation of the ltl2tgba C++ test program.
# Compare with src/tgbatest/ltl2tgba.cc.
import spot
o = spot.option_map()
g = spot.randltlgenerator(0, o)
assert str(g.next()) == '1'
assert str(g.next()) == '0'
assert str(g.next()) == 'None'
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