Rename tgbatest into tests.

* src/Makefile.am, README, configure.ac: update references.
* src/tgbatest/: rename as...
* src/tests/: ...this!

src/tests/wdba2.test

@@ -0,0 +1,39 @@
+#!/bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2012, 2014 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
+
+cat >expected <<EOF
+sub trans.: 16
+transitions: 8
+states: 4
+nondeterministic states: 0
+EOF
+
+# These two equivalent formulae used to produce
+# minimized automata of different sizes...
+run 0 ../ltl2tgba -Rm -kt 'a | X(Gd|Fa)' > out
+run 0 ../ltl2tgba -Rm -kt 'Fa | XGd' > out2
+
+cmp out expected
+cmp out2 expected
+