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#!/usr/bin/perl
# Exercise fold.
# Copyright (C) 2003-2025 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 <https://www.gnu.org/licenses/>.
use strict;
(my $program_name = $0) =~ s|.*/||;
# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
my $prog = 'fold';
my @Tests =
(
['s1', '-w2 -s', {IN=>"a\t"}, {OUT=>"a\n\t"}],
['s2', '-w4 -s', {IN=>"abcdef d\n"}, {OUT=>"abcd\nef d\n"}],
['s3', '-w4 -s', {IN=>"a cd fgh\n"}, {OUT=>"a \ncd \nfgh\n"}],
['s4', '-w4 -s', {IN=>"abc ef\n"}, {OUT=>"abc \nef\n"}],
# The downstream I18N patch made fold(1) exit with success for non-existing
# files since v5.2.1-1158-g3d3030da6 (2004) changed int to bool for booleans.
# The I18N patch was fixed only in July 2024. (rhbz#2296201).
['enoent', 'enoent', {EXIT => 1},
{ERR=>"$prog: enoent: No such file or directory\n"}],
# The downstream I18N patch made 'fold -b' mishandled '\n' in UTF locales.
# The I18N patch was fixed only in Sep 2024. (RHEL-60295)
['bw1', '-b -w 4', {IN=>"abcdef\nghijkl"}, {OUT=>"abcd\nef\nghij\nkl"}],
['bw2', '-b -w 6', {IN=>"1234567890\nabcdefghij\n1234567890"},
{OUT=>"123456\n7890\nabcdef\nghij\n123456\n7890"}],
);
my $save_temps = $ENV{DEBUG};
my $verbose = $ENV{VERBOSE};
my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
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