1#!/bin/sh 2# Ensure that sort --sort-random doesn't sort. 3 4# Copyright (C) 2005-2023 Free Software Foundation, Inc. 5 6# This program is free software: you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation, either version 3 of the License, or 9# (at your option) any later version. 10 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <https://www.gnu.org/licenses/>. 18 19. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src 20print_ver_ sort 21 22seq 100 > in || framework_failure_ 23 24 25sort --random-sort in > out || fail=1 26 27# Fail if the input is the same as the output. 28# This is a probabilistic test :-) 29# However, the odds of failure are very low: 1 in 100! (~ 1 in 10^158) 30compare in out > /dev/null && { fail=1; echo "not random?" 1>&2; } 31 32# Fail if the sorted output is not the same as the input. 33sort -n out > out1 34compare in out1 || { fail=1; echo "not a permutation" 1>&2; } 35 36# If locale is available then use it to find a random non-C locale. 37if (locale --version) > /dev/null 2>&1; then 38 locale=$(locale -a | sort --random-sort | $AWK '/^.._/{print;exit}') 39 LC_ALL=$locale sort --random-sort in > out1 || fail=1 40 LC_ALL=$locale sort --random-sort in > out2 || fail=1 41 42 # Fail if the output "randomly" is the same twice in a row. 43 compare out1 out2 > /dev/null && 44 { fail=1; echo "not random with LC_ALL=$locale" 1>&2; } 45 46 # Fail if the sorted output is not the same as the input. 47 sort -n out > out1 48 compare in out1 || 49 { fail=1; echo "not a permutation with LC_ALL=$locale" 1>&2; } 50fi 51 52Exit $fail 53