postproc: add Python bindings for Parity changes

* python/spot/__init__.py: Here.
* tests/python/parity.py: New file.
* tests/Makefile.am: Add it.

tests/python/parity.py

@@ -0,0 +1,31 @@
+#!/usr/bin/python3
+# -*- mode: python; coding: utf-8 -*-
+# Copyright (C) 2018 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
+
+
+for f in ('FGa', 'GFa & GFb & FGc', 'XXX(a U b)'):
+    a1 = spot.translate(f, 'parity')
+    assert a1.acc().is_parity()
+    a2 = spot.translate(f).postprocess('parity')
+    assert a2.acc().is_parity()
+    a3 = spot.translate(f, 'det').postprocess('parity')
+    assert a3.acc().is_parity()
+