#! /bin/sh
# Copyright (C) 2009, 2011 Laboratoire de Recherche et Développement
# de l'Epita (LRDE).
# Copyright (C) 2003, 2004 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 2 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 Spot; see the file COPYING.  If not, write to the Free
# Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.


# Check for the equals visitor

. ./defs || exit 1

# A few things which are equal
run 0 ../equals 'a' 'a'
run 0 ../equals '~a' '!a'
run 0 ../equals '1' '1'
run 0 ../equals '0' '0'
run 0 ../equals 'a => b' 'a --> b'
run 0 ../equals 'a <-> b' 'a <--> b'
run 0 ../equals 'G a ' ' G a'
run 0 ../equals 'a U b' 'a U b'
run 0 ../equals 'a & b' 'a & b'
run 0 ../equals 'a & b' 'b & a'
run 0 ../equals 'a & b & c' 'c & a && b'
run 0 ../equals 'a & b & c' 'b & c & a'
run 0 ../equals 'a && b & a' 'b & a & b'
run 0 ../equals 'a & b' 'b & a & b'
run 0 ../equals 'a & b' 'b & a & a'
run 0 ../equals 'a & b & (c |(f U g)|| e)' \
                'b & a & a & (c | e |(f U g)| e | c) & b'
run 0 ../equals 'a & a' 'a'

# other formulae which are not
run 1 ../equals 'a' 'b'
run 1 ../equals '1' '0'
run 1 ../equals 'a => b' 'b => a'
run 1 ../equals 'a => b' 'a <=> b'
run 1 ../equals 'a => b' 'a U b'
run 1 ../equals 'a R b' 'a U b'
run 1 ../equals 'a & b & c' 'c & a'
run 1 ../equals 'b & c' 'c & a & b'
run 1 ../equals 'a & b & (c |(f U g)| e)' \
                'b & a & a & (c | e |(g U g)| e | c) & b'

# Precedence
run 0 ../equals 'a & b ^ c | d' 'd | c ^ b & a'

# Corner cases parsing
run 0 ../equals 'FFG__GFF' 'F(F(G("__GFF")))'