Merge the core and python tests in the tests/ directory

* tests/: Rename as...
* tests/core/: ... this.
* python/tests/: Rename as...
* tests/python/: ... this.
* python/tests/run.in: Move as...
* tests/run.in: This, and adjust.
* tests/Makefile.am: Adjust to run both core and python tests.
* configure.ac, README, debian/python3-spot.examples, debian/rules,
doc/org/tut.org, python/Makefile.am, spot/ltsmin/Makefile.am,
spot/ltsmin/kripke.test, spot/sanity/ipynb.test: Adjust.

tests/core/explpro4.test

@@ -0,0 +1,91 @@
+#!/bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2009, 2014, 2015 Laboratoire de Recherche et
+# Développement de l'Epita (LRDE).
+# Copyright (C) 2006 Laboratoire d'Informatique de Paris 6 (LIP6),
+# département Systèmes Répartis Coopératifs (SRC), Université Pierre
+# et Marie Curie.
+#
+# 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/>.
+
+
+. ./defs
+
+set -e
+
+cat >input1 <<EOF
+HOA: v1
+States: 1
+Start: 0
+AP: 1 "a"
+acc-name: Buchi
+Acceptance: 1 Inf(0)
+properties: trans-labels explicit-labels trans-acc complete deterministic
+--BODY--
+State: 0
+[!0] 0
+[0] 0 {0}
+--END--
+EOF
+
+cat >input2 <<EOF
+HOA: v1
+States: 1
+Start: 0
+AP: 1 "a"
+acc-name: Buchi
+Acceptance: 1 Fin(0)
+properties: trans-labels explicit-labels trans-acc complete deterministic
+--BODY--
+State: 0
+[0] 0
+[!0] 0 {0}
+--END--
+EOF
+
+cat >expected <<'EOF'
+HOA: v1
+States: 1
+Start: 0
+AP: 1 "a"
+Acceptance: 2 Inf(0) & Fin(1)
+properties: trans-labels explicit-labels trans-acc complete deterministic
+--BODY--
+State: 0
+[!0] 0 {1}
+[0] 0 {0}
+--END--
+EOF
+
+cat >unexpected <<'EOF'
+HOA: v1
+States: 1
+Start: 0
+AP: 1 "a"
+Acceptance: 2 Inf(0) & Inf(1)
+properties: trans-labels explicit-labels trans-acc complete deterministic
+--BODY--
+State: 0
+[!0] 0 {1}
+[0] 0 {0}
+--END--
+EOF
+
+run 0 autfilt input1 --product input2 --hoa | tee stdout
+run 0 autfilt -q stdout --isomorph expected
+run 1 autfilt -q stdout --isomorph unexpected
+
+true