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e326d0df65
* tests/nice/nice.sh: Ensure integers > UINTMAX_MAX are supported. From https://github.com/coreutils/coreutils/pull/170
127 lines
3.8 KiB
Bash
Executable File
127 lines
3.8 KiB
Bash
Executable File
#!/bin/sh
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# Test "nice".
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# Copyright (C) 2002-2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ nice
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getlimits_
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tests='
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0 empty 10
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1 -1 1
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2 -12 12
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3 -1:-2 2
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4 -n:1 1
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5 -n:1:-2 2
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6 -n:1:-+12 12
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7 -2:-n:1 1
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8 -2:-n:12 12
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9 -+1 1
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10 -+12 12
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11 -+1:-+12 12
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12 -n:+1 1
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13 --1:-2 2
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14 --1:-2:-13 13
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15 --1:-n:2 2
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16 --1:-n:2:-3 3
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17 --1:-n:2:-13 13
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18 -n:-1:-12 12
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19 --1:-12 12
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NA LAST NA
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'
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set -- $tests
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# Require that this test be run at 'nice' level 0.
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niceness=$(nice)
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if test "$niceness" = 0; then
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: ok
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else
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skip_ "this test must be run at nice level 0"
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fi
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while :; do
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test_name=$1
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args=$2
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expected_result=$3
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test $args = empty && args=''
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test x$args = xLAST && break
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args=$(echo x$args|tr : ' '|sed 's/^x//')
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if test "$VERBOSE" = yes; then
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#echo "testing \$(nice $args nice\) = $expected_result ..."
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echo "test $test_name... " | tr -d '\n'
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fi
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test x$(nice $args nice 2> /dev/null) = x$expected_result \
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&& ok=ok || ok=FAIL fail=1
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test "$VERBOSE" = yes && echo $ok
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shift; shift; shift
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done
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# Test negative niceness - command must be run whether or not change happens.
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if test x$(nice -n -1 nice 2> /dev/null) = x0 ; then
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# GNU/Hurd does not allow negative niceness even if we are a privileged user.
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if test "$(uname)" = GNU; then
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max_nice=$(nice -n "$INT_MAX" nice) || fail=1
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# Check that the lowest niceness is 0.
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nice -n -1 nice > out || fail=1
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echo '0' > exp || framework_failure_
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compare exp out || fail=1
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# Exceeding the max niceness would lead to the program not being executed on
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# GNU/Hurd with coreutils 9.8 and earlier.
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nice -n $(("$max_nice" + 1)) nice > out || fail=1
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echo "$max_nice" > exp || framework_failure_
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compare exp out || fail=1
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# GNU/Hurd's nice(2) with glibc 2.42 and earlier does not clamp the
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# niceness to the supported range. Check that we workaround the bug.
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# See <https://sourceware.org/PR33614>.
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nice -n 1 nice -n $(("$max_nice" - 2)) nice > out|| fail=1
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echo $(("$max_nice" - 1)) > exp || framework_failure_
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compare exp out || fail=1
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nice -n 1 nice -n $(("$max_nice" + 1)) nice > out || fail=1
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echo "$max_nice" > exp || framework_failure_
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compare exp out || fail=1
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nice -n 2 nice -n -1 nice > out || fail=1
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echo '1' > exp || framework_failure_
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compare exp out || fail=1
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nice -n 2 nice -n -3 nice > out || fail=1
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echo '0' > exp || framework_failure_
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compare exp out || fail=1
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else
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# unprivileged user - warn about failure to change
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nice -n -1 true 2> err || fail=1
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compare /dev/null err && fail=1
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mv err exp || framework_failure_
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nice --1 true 2> err || fail=1
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compare exp err || fail=1
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# Failure to write advisory message is fatal. Buggy through coreutils 8.0.
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if test "$(uname)" != GNU && test -w /dev/full && test -c /dev/full; then
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returns_ 125 nice -n -1 nice > out 2> /dev/full || fail=1
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compare /dev/null out || fail=1
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fi
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fi
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else
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# superuser - change succeeds
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nice -n -1 nice 2> err || fail=1
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compare /dev/null err || fail=1
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test x$(nice -n -1 nice) = x-1 || fail=1
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test x$(nice --1 nice) = x-1 || fail=1
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fi
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# Ensure large values are clamped
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nice -n $UINTMAX_OFLOW nice || fail=1
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Exit $fail
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