6623af67e6
The algorithm had two problems: it was removing only useless destination from universal destination (instead of removing the entire edge), and it was not properly iterating over the entire reachable automaton. * spot/twa/twagraph.cc: Fix it. * spot/twa/twagraph.hh: Adjust documentation. * tests/core/alternating.test: Add more tests. * tests/python/twagraph.py: Adjust. * NEWS: Mention the bug.
91 lines
2.4 KiB
Python
91 lines
2.4 KiB
Python
# -*- mode: python; coding: utf-8 -*-
|
|
# Copyright (C) 2017 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 file tests various error conditions on the twa API
|
|
|
|
import spot
|
|
from buddy import bddtrue
|
|
|
|
aut = spot.make_twa_graph(spot.make_bdd_dict())
|
|
|
|
try:
|
|
print(aut.to_str())
|
|
exit(2)
|
|
except RuntimeError as e:
|
|
assert "no state" in str(e)
|
|
|
|
try:
|
|
aut.set_init_state(2)
|
|
except ValueError as e:
|
|
assert "nonexisting" in str(e)
|
|
|
|
try:
|
|
aut.set_univ_init_state([2, 1])
|
|
except ValueError as e:
|
|
assert "nonexisting" in str(e)
|
|
|
|
aut.new_states(3)
|
|
aut.set_init_state(2)
|
|
assert aut.get_init_state_number() == 2
|
|
e = aut.set_univ_init_state([2, 1])
|
|
assert [2, 1] == list(aut.univ_dests(aut.get_init_state_number()))
|
|
|
|
try:
|
|
aut.get_init_state()
|
|
except RuntimeError as e:
|
|
s = str(e)
|
|
assert "abstract interface" in s and "alternating automata" in s
|
|
|
|
all = aut.set_buchi()
|
|
aut.new_acc_edge(0, 1, bddtrue, True)
|
|
|
|
try:
|
|
s = aut.state_acc_sets(0)
|
|
except RuntimeError as e:
|
|
assert "state-based acceptance" in str(e)
|
|
|
|
try:
|
|
s = aut.state_is_accepting(0)
|
|
except RuntimeError as e:
|
|
assert "state-based acceptance" in str(e)
|
|
|
|
aut.prop_state_acc(True)
|
|
|
|
assert aut.state_acc_sets(0) == all
|
|
assert aut.state_is_accepting(0) == True
|
|
|
|
aut.set_init_state(0)
|
|
aut.purge_unreachable_states()
|
|
i = aut.get_init_state()
|
|
assert aut.state_is_accepting(i) == True
|
|
|
|
it = aut.succ_iter(i)
|
|
it.first()
|
|
assert aut.edge_number(it) == 1
|
|
assert aut.state_number(it.dst()) == 1
|
|
assert aut.edge_storage(it).src == 0
|
|
assert aut.edge_storage(1).src == 0
|
|
assert aut.edge_data(it).cond == bddtrue
|
|
assert aut.edge_data(1).cond == bddtrue
|
|
aut.release_iter(it)
|
|
|
|
aut.purge_dead_states()
|
|
i = aut.get_init_state()
|
|
assert aut.state_is_accepting(i) == False
|