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#!/usr/bin/perl
# Test "sort -m".
# Copyright (C) 2002, 2003, 2005-2008 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/>.
use strict;
(my $program_name = $0) =~ s|.*/||;
my $prog = 'sort';
# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
# three empty files and one that says 'foo'
my @inputs = (+(map{{IN=> {"empty$_"=> ''}}}1..3), {IN=> {foo=> "foo\n"}});
my $big_input = "aaa\n" x 1024;
# don't need to check for existence, since we're running in a temp dir
my $badtmp = 'does/not/exist';
# 2^64+1
my $bigint = "18446744073709551617";
my @Tests =
(
['m1', '-m', @inputs, {OUT=>"foo\n"}],
# check validation of --batch-size option
['nmerge-0', "-m --batch-size=0", @inputs,
{ERR=>"$prog: invalid --batch-size argument `0'\n".
"$prog: minimum --batch-size argument is `2'\n"}, {EXIT=>2}],
['nmerge-1', "-m --batch-size=1", @inputs,
{ERR=>"$prog: invalid --batch-size argument `1'\n".
"$prog: minimum --batch-size argument is `2'\n"}, {EXIT=>2}],
['nmerge-neg', "-m --batch-size=-1", @inputs,
{ERR=>"$prog: invalid --batch-size argument `-1'\n"}, {EXIT=>2}],
['nmerge-nan', "-m --batch-size=a", @inputs,
{ERR=>"$prog: invalid --batch-size argument `a'\n"}, {EXIT=>2}],
['nmerge-big', "-m --batch-size=$bigint", @inputs,
{ERR_SUBST=>'s/current rlimit is .+\n/current rlimit is/'},
{ERR=>"$prog: --batch-size argument `$bigint' too large\n".
"$prog: maximum --batch-size argument with current rlimit is"},
{EXIT=>2}],
# This should work since nmerge >= the number of input files
['nmerge-yes', "-m --batch-size=4 -T$badtmp", @inputs, {OUT=>"foo\n"}],
# this should fail since nmerge < # of input files, so
# temp files are needed
['nmerge-no', "-m --batch-size=2 -T$badtmp", @inputs,
{ERR_SUBST=>"s|: $badtmp/sort.+||"},
{ERR=>"$prog: cannot create temporary file\n"}, {EXIT=>2}],
# This used to fail because setting batch-size without also setting
# buffer size would cause the buffer size to be set to the minimum.
['batch-size', "--batch-size=16 -T$badtmp", {IN=> {big=> $big_input}},
{OUT=>$big_input}],
);
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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