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/rand.test

@@ -1,142 +0,0 @@
-#!/bin/sh
-# -*- coding: utf-8 -*-
-# Copyright (C) 2014, 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/>.
-
-. ./defs
-set -e
-
-randltl=../../bin/randltl
-
-run 0 $randltl -S -n 20 a b c --tree-size=10 \
-    --sere-priorities=and=0,andNLM=0 \
-    --boolean-priorities=equiv=0,implies=0,xor=0,and=0,not=0 \
-    --dump-priorities > stdout
-
-cat >expected <<EOF
-Use --sere-priorities to set the following SERE priorities:
-eword	1
-boolform	1
-star	1
-star_b	1
-fstar	1
-fstar_b	1
-and	0
-andNLM	0
-or	1
-concat	1
-fusion	1
-Use --boolean-priorities to set the following Boolean formula priorities:
-ap	3
-false	1
-true	1
-not	0
-equiv	0
-implies	0
-xor	0
-and	0
-or	1
-EOF
-diff stdout expected
-
-
-sere='eword=0,and=0,andNLM=0,fusion=0,star=0,star_b=0'
-sere="$sere,or=0,concat=0,fstar=0,fstar_b=0"
-
-run 0 $randltl -S -n 10000 a b c --tree-size=10..20 \
-   --sere-p=$sere \
-   --boolean-p=equiv=0,implies=0,xor=0,and=0,not=0,false=0,true=0,or=0 \
-   --dump-pr > stdout
-
-cat >expected <<EOF
-Use --sere-priorities to set the following SERE priorities:
-eword	0
-boolform	1
-star	0
-star_b	0
-fstar	0
-fstar_b	0
-and	0
-andNLM	0
-or	0
-concat	0
-fusion	0
-Use --boolean-priorities to set the following Boolean formula priorities:
-ap	3
-false	0
-true	0
-not	0
-equiv	0
-implies	0
-xor	0
-and	0
-or	0
-EOF
-diff stdout expected
-
-
-
-# Disabling all operators will prevent more formulas to be generated.
-$randltl -S -n 10000 a b c --tree-size=10..20 \
- --sere-p=$sere \
- --boolean-p=equiv=0,implies=0,xor=0,and=0,not=0,false=0,true=0,or=0 > out &&
-  exit 1
-sort out > out2
-cat >expected <<EOF
-a
-b
-c
-EOF
-
-diff expected out2
-
-
-# atomic proposition can be implicitly specified using a number
-$randltl -n 1000 3 --tree-size=10..20 > out
-grep -q p0 out
-grep -q p1 out
-grep -q p2 out
-grep p3 out && exit 1
-
-
-# We should be able to generate exactly two formulas with 0 atomic
-# propositions.
-run 0 $randltl -n2 0 | sort > out
-cat >expected <<EOF
-0
-1
-EOF
-diff out expected
-
-# requesting more formulas should fail
-run 2 $randltl -n3 0
-
-# If more numbers are given, there are interpreted as atomic propositions
-run 0 $randltl -n1000 0 1 > out
-grep -q '"0"' out
-grep -q '"1"' out
-
-
-run 0 $randltl -n5 2 -o test-all.ltl
-run 0 $randltl -n5 2 -o test-%L.ltl
-cat test-1.ltl test-2.ltl test-3.ltl test-4.ltl test-5.ltl > test-cmp.ltl
-diff test-cmp.ltl test-all.ltl
-
-
-$randltl 2 --ltl-prio=X 2>stderr && exit 1
-grep 'failed to parse LTL priorities near X' stderr