#!/bin/sh
# Copyright (C) 2010 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 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.


. ./defs

set -e

cat >input <<EOF
never {
T2_init:
if
:: (1) -> goto T2_init
:: (p1 && p0) -> goto T1
fi;
T1:
if
:: (p1 && (! p0)) -> goto accept_all
:: (p1) -> goto T1
fi;
accept_all:
skip
}
EOF

run 0 ../ltl2tgba -XN input > stdout

cat >expected <<EOF
digraph G {
  0 [label="", style=invis, height=0]
  0 -> 1
  1 [label="T2_init"]
  1 -> 2 [label="p0 & p1\n"]
  1 -> 1 [label="1\n"]
  2 [label="T1"]
  2 -> 2 [label="p1\n"]
  2 -> 3 [label="p1 & !p0\n"]
  3 [label="accept_all"]
  3 -> 3 [label="1\n{Acc[1]}"]
}
EOF

# Sort out some possible inversions in the output.
# (The order is not guaranteed by SPOT.)
sed -e 's/!p0 & p1/p1 \& !p0/g' -e 's/p1 & p0/p0 \& p1/g' stdout \
    > tmp_ && mv tmp_ stdout
diff stdout expected

rm input stdout expected


# Test broken guards in input
cat >input <<EOF
never {
T2_init:
if
:: (1) -> goto T2_init
:: (p1 && ) -> goto T1
fi;
T1:
if
:: (p1 && ! p0)) -> goto accept_all
:: (p1) -> goto T1
fi;
accept_all:
skip
}
EOF

run 2 ../ltl2tgba -XN input > stdout 2>stderr
cat >expected <<EOF
input:5.11: syntax error, unexpected closing parenthesis
input:5.8-9: missing right operand for "and operator"
input:9.16: syntax error, unexpected closing parenthesis
input:9.16: ignoring trailing garbage
EOF
grep input: stderr >> stderrfilt
diff stderrfilt expected

cat >formulae<<EOF
a
<>[] a
X false
([] a) U X b
(a U b) U (c U d)
EOF
while read f
do
    run 0 ../ltl2tgba -b -f "!($f)" > f.tgba
    if test -n "$SPIN"; then
	$SPIN -f "$f" > f.spin
	run 0 ../ltl2tgba -E -Pf.tgba -XN f.spin
    fi
    if test -n "$LTL2BA"; then
	$LTL2BA -f "$f" > f.ltl2ba
	run 0 ../ltl2tgba -E -Pf.tgba -XN f.ltl2ba
    fi
    run 0 ../ltl2tgba -DS -NN -f "$f" > f.spot
    run 0 ../ltl2tgba -E -Pf.tgba -XN f.spot
done  <formulae