#   This program 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.
#
#   This program 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/>.
#
# $FreeBSD: src/tools/regression/bin/sh/expansion/set-u1.0,v 1.2 2010/10/12 18:20:38 obrien Exp $

${THIS_SH} -uc 'unset foo; echo ${foo}' 2>/dev/null && exit 1
${THIS_SH} -uc 'unset foo; echo $foo' 2>/dev/null && exit 1
${THIS_SH} -uc 'foo=; echo $foo' >/dev/null || exit 2
${THIS_SH} -uc 'foo=1; echo $foo' >/dev/null || exit 3
# -/+/= are unaffected by set -u
${THIS_SH} -uc 'unset foo; echo ${foo-}' >/dev/null || exit 4
${THIS_SH} -uc 'unset foo; echo ${foo+}' >/dev/null || exit 5
${THIS_SH} -uc 'unset foo; echo ${foo=}' >/dev/null || exit 6
# length/trimming are affected
${THIS_SH} -uc 'unset foo; echo ${#foo}' 2>/dev/null && exit 7
${THIS_SH} -uc 'foo=; echo ${#foo}' >/dev/null || exit 8
${THIS_SH} -uc 'unset foo; echo ${foo#?}' 2>/dev/null && exit 9
${THIS_SH} -uc 'foo=1; echo ${foo#?}' >/dev/null || exit 10
${THIS_SH} -uc 'unset foo; echo ${foo##?}' 2>/dev/null && exit 11
${THIS_SH} -uc 'foo=1; echo ${foo##?}' >/dev/null || exit 12
${THIS_SH} -uc 'unset foo; echo ${foo%?}' 2>/dev/null && exit 13
${THIS_SH} -uc 'foo=1; echo ${foo%?}' >/dev/null || exit 14
${THIS_SH} -uc 'unset foo; echo ${foo%%?}' 2>/dev/null && exit 15
${THIS_SH} -uc 'foo=1; echo ${foo%%?}' >/dev/null || exit 16

${THIS_SH} -uc 'echo $!' 2>/dev/null && exit 17
${THIS_SH} -uc ':& echo $!' >/dev/null || exit 18
${THIS_SH} -uc 'echo $#' >/dev/null || exit 19
${THIS_SH} -uc 'echo $1' 2>/dev/null && exit 20
${THIS_SH} -uc 'echo $1' ${THIS_SH} xnotthere >/dev/null || exit 21
${THIS_SH} -uc 'echo $2' ${THIS_SH} xnotthere 2>/dev/null && exit 22
${THIS_SH} -uc 'echo $2' ${THIS_SH} xnotthere ynotthere >/dev/null || exit 23

${THIS_SH} -uc 'echo $! ; exit 24' 2>/dev/null
${THIS_SH} -uc 'echo ${!} ; exit 25' 2>/dev/null
${THIS_SH} -uc 'echo ${!,} ; exit 26' 2>/dev/null

${THIS_SH} -uc 'echo ${!-ok 27} >/dev/null || exit 27'
${THIS_SH} -uc 'echo ${2-ok 28} >/dev/null || exit 28'

exit 0