spot/tests/python/decompose_scc.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

110 lines
2.4 KiB
Python

# -*- mode: python; coding: utf-8 -*-
# Copyright (C) 2017, 2021, 2022 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 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/>.
import spot
from unittest import TestCase
tc = TestCase()
aut = spot.translate('(Ga -> Gb) W c')
si = spot.scc_info(aut)
# Extract the only rejecting SCC. Its number might differ
# if the generation of the automaton changes, so just scan
# for it.
rej = [j for j in range(si.scc_count()) if si.is_rejecting_scc(j)]
tc.assertEqual(len(rej), 1)
s = spot.decompose_scc(si, rej[0]).to_str('hoa', '1.1')
tc.assertEqual(s, """HOA: v1.1
States: 3
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc !complete
properties: deterministic terminal
--BODY--
State: 0
[!1&!2] 0
[1&!2] 1
State: 1
[!1&!2] 0
[1&!2] 1
[1&2] 2
State: 2
[1] 2
--END--""")
try:
spot.decompose_scc(si, 4)
except RuntimeError:
pass
else:
raise AssertionError
tc.assertEqual(spot.decompose_scc(si, 0, True).to_str('hoa', '1.1'),
"""HOA: v1.1
States: 4
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels state-acc complete
properties: deterministic terminal
--BODY--
State: 0
[!1&!2] 0
[2] 1
[1&!2] 2
State: 1 {0}
[t] 1
State: 2
[!1&!2] 0
[!1&2] 1
[1&!2] 2
[1&2] 3
State: 3
[!1] 1
[1] 3
--END--""")
tc.assertEqual(spot.decompose_scc(si, 2, True).to_str('hoa', '1.1'),
"""HOA: v1.1
States: 2
Start: 0
AP: 3 "b" "a" "c"
acc-name: Buchi
Acceptance: 1 Inf(0)
properties: trans-labels explicit-labels trans-acc !complete
properties: deterministic !weak
--BODY--
State: 0
[!1&!2] 0 {0}
[1&!2] 1
State: 1
[!1&!2] 0 {0}
[1&!2] 1
--END--""")
try:
spot.decompose_scc(si, 3, True)
except RuntimeError:
pass
else:
raise AssertionError("missing exception")