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#!/bin/sh
# Test "nice".
# Copyright (C) 2002-2016 Free Software Foundation, Inc.
# 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/>.
. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
print_ver_ nice
tests='
0 empty 10
1 -1 1
2 -12 12
3 -1:-2 2
4 -n:1 1
5 -n:1:-2 2
6 -n:1:-+12 12
7 -2:-n:1 1
8 -2:-n:12 12
9 -+1 1
10 -+12 12
11 -+1:-+12 12
12 -n:+1 1
13 --1:-2 2
14 --1:-2:-13 13
15 --1:-n:2 2
16 --1:-n:2:-3 3
17 --1:-n:2:-13 13
18 -n:-1:-12 12
19 --1:-12 12
NA LAST NA
'
set $tests
# Require that this test be run at 'nice' level 0.
niceness=$(nice)
if test "$niceness" = 0; then
: ok
else
skip_ "this test must be run at nice level 0"
fi
while :; do
test_name=$1
args=$2
expected_result=$3
test $args = empty && args=''
test x$args = xLAST && break
args=$(echo x$args|tr : ' '|sed 's/^x//')
if test "$VERBOSE" = yes; then
#echo "testing \$(nice $args nice\) = $expected_result ..."
echo "test $test_name... " | tr -d '\n'
fi
test x$(nice $args nice 2> /dev/null) = x$expected_result \
&& ok=ok || ok=FAIL fail=1
test "$VERBOSE" = yes && echo $ok
shift; shift; shift
done
# Test negative niceness - command must be run whether or not change happens.
if test x$(nice -n -1 nice 2> /dev/null) = x0 ; then
# unprivileged user - warn about failure to change
nice -n -1 true 2> err || fail=1
compare /dev/null err && fail=1
mv err exp || framework_failure_
nice --1 true 2> err || fail=1
compare exp err || fail=1
# Failure to write advisory message is fatal. Buggy through coreutils 8.0.
if test -w /dev/full && test -c /dev/full; then
returns_ 125 nice -n -1 nice > out 2> /dev/full || fail=1
compare /dev/null out || fail=1
fi
else
# superuser - change succeeds
nice -n -1 nice 2> err || fail=1
compare /dev/null err || fail=1
test x$(nice -n -1 nice) = x-1 || fail=1
test x$(nice --1 nice) = x-1 || fail=1
fi
Exit $fail
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