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#!/usr/bin/perl
# -*- perl -*-
# Test comm
# Copyright (C) 2008-2025 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/>.
require 5.003;
use strict;
(my $program_name = $0) =~ s|.*/||;
my $prog = 'comm';
# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
my @inputs = ({IN=>{a=>"1\n3\n3\n3"}}, {IN=>{b=>"2\n2\n3\n3\n3"}});
my @zinputs = ({IN=>{za=>"1\0003\0003\0003"}},
{IN=>{zb=>"2\0002\0003\0003\0003"}});
my @Tests =
(
# basic operation
['basic', @inputs, {OUT=>"1\n\t2\n\t2\n\t\t3\n\t\t3\n\t\t3\n"} ],
['zbasic', '-z', @zinputs, {OUT=>"1\0\t2\0\t2\0\t\t3\0\t\t3\0\t\t3\0"} ],
# suppress lines unique to file 1
['opt-1', '-1', @inputs, {OUT=>"2\n2\n\t3\n\t3\n\t3\n"} ],
['zopt-1', '-z', '-1', @zinputs, {OUT=>"2\0002\000\t3\000\t3\000\t3\000"} ],
# suppress lines unique to file 2
['opt-2', '-2', @inputs, {OUT=>"1\n\t3\n\t3\n\t3\n"} ],
['zopt-2', '-z', '-2', @zinputs, {OUT=>"1\000\t3\000\t3\000\t3\000"} ],
# suppress lines that appear in both files
['opt-3', '-3', @inputs, {OUT=>"1\n\t2\n\t2\n"} ],
['zopt-3', '-z', '-3', @zinputs, {OUT=>"1\000\t2\000\t2\000"} ],
# suppress lines unique to file 1 and lines unique to file 2
['opt-12', '-1', '-2', @inputs, {OUT=>"3\n3\n3\n"} ],
['zopt-12', '-12z', @zinputs, {OUT=>"3\0003\0003\000"} ],
# suppress lines unique to file 1 and those that appear in both files
['opt-13', '-1', '-3', @inputs, {OUT=>"2\n2\n"} ],
['zopt-13', '-13z', @zinputs, {OUT=>"2\0002\000"} ],
# suppress lines unique to file 2 and those that appear in both files
['opt-23', '-2', '-3', @inputs, {OUT=>"1\n"} ],
['zopt-23', '-23z', @zinputs, {OUT=>"1\000"} ],
# suppress all output
['opt-123', '-1', '-2', '-3', @inputs, {OUT=>""} ],
# show summary: 1 only in file1, 2 only in file2, 3 in both files
['total-all', '--total', @inputs, {OUT=>"1\n\t2\n\t2\n\t\t3\n\t\t3\n\t\t3\n"
. "1\t2\t3\ttotal\n"} ],
# show summary only, suppressing regular output
['total-123', '--total', '-123', @inputs, {OUT=>"1\t2\t3\ttotal\n"} ],
# invalid missing command line argument (1)
['missing-arg1', $inputs[0], {EXIT=>1},
{ERR => "$prog: missing operand after 'a'\n"
. "Try '$prog --help' for more information.\n"}],
# invalid missing command line argument (both)
['missing-arg2', {EXIT=>1},
{ERR => "$prog: missing operand\n"
. "Try '$prog --help' for more information.\n"}],
# invalid extra command line argument
['extra-arg', @inputs, 'no-such', {EXIT=>1},
{ERR => "$prog: extra operand 'no-such'\n"
. "Try '$prog --help' for more information.\n"}],
# out-of-order input
['ooo', {IN=>{a=>"1\n3"}}, {IN=>{b=>"3\n2"}}, {EXIT=>1},
{OUT => "1\n\t\t3\n\t2\n"},
{ERR => "$prog: file 2 is not in sorted order\n"
. "$prog: input is not in sorted order\n"}],
# out-of-order input, fatal
['ooo2', '--check-order', {IN=>{a=>"1\n3"}}, {IN=>{b=>"3\n2"}}, {EXIT=>1},
{OUT => "1\n\t\t3\n"},
{ERR => "$prog: file 2 is not in sorted order\n"}],
# out-of-order input, ignored
['ooo3', '--nocheck-order', {IN=>{a=>"1\n3"}}, {IN=>{b=>"3\n2"}},
{OUT => "1\n\t\t3\n\t2\n"}],
# both inputs out-of-order
['ooo4', {IN=>{a=>"3\n1\n0"}}, {IN=>{b=>"3\n2\n0"}}, {EXIT=>1},
{OUT => "\t\t3\n1\n0\n\t2\n\t0\n"},
{ERR => "$prog: file 1 is not in sorted order\n".
"$prog: file 2 is not in sorted order\n"
. "$prog: input is not in sorted order\n"}],
# both inputs out-of-order on last pair
['ooo5', {IN=>{a=>"3\n1"}}, {IN=>{b=>"3\n2"}}, {EXIT=>1},
{OUT => "\t\t3\n1\n\t2\n"},
{ERR => "$prog: file 1 is not in sorted order\n".
"$prog: file 2 is not in sorted order\n"
. "$prog: input is not in sorted order\n"}],
# first input out-of-order extended
['ooo5b', {IN=>{a=>"0\n3\n1"}}, {IN=>{b=>"2\n3"}}, {EXIT=>1},
{OUT => "0\n\t2\n\t\t3\n1\n"},
{ERR => "$prog: file 1 is not in sorted order\n"
. "$prog: input is not in sorted order\n"}],
# second input out-of-order extended
['ooo5c', {IN=>{a=>"0\n3"}}, {IN=>{b=>"2\n3\n1"}}, {EXIT=>1},
{OUT => "0\n\t2\n\t\t3\n\t1\n"},
{ERR => "$prog: file 2 is not in sorted order\n"
. "$prog: input is not in sorted order\n"}],
# both inputs out-of-order, but fully pairable
['ooo6', {IN=>{a=>"2\n1\n0"}}, {IN=>{b=>"2\n1\n0"}}, {EXIT=>0},
{OUT => "\t\t2\n\t\t1\n\t\t0\n"}],
# both inputs out-of-order, fully pairable, but forced to fail
['ooo7', '--check-order', {IN=>{a=>"2\n1\n0"}}, {IN=>{b=>"2\n1\n0"}},
{EXIT=>1},
{OUT => "\t\t2\n"},
{ERR => "$prog: file 1 is not in sorted order\n"}],
# out-of-order, line 2 is a prefix of line 1
# until coreutils-7.2, this test would fail -- no disorder detected
['ooo-prefix', '--check-order', {IN=>{a=>"Xa\nX\n"}}, {IN=>{b=>""}},
{EXIT=>1},
{OUT => "Xa\n"},
{ERR => "$prog: file 1 is not in sorted order\n"}],
# alternate delimiter: ','
['delim-comma', '--output-delimiter=,', @inputs,
{OUT=>"1\n,2\n,2\n,,3\n,,3\n,,3\n"} ],
# two-character alternate delimiter: '++'
['delim-2char', '--output-delimiter=++', @inputs,
{OUT=>"1\n++2\n++2\n++++3\n++++3\n++++3\n"} ],
# NUL delimiter
['delim-empty', '--output-delimiter=', @inputs,
{OUT=>"1\n\0002\n\0002\n\000\0003\n\000\0003\n\000\0003\n"} ],
['zdelim-empty', '-z', '-z --output-delimiter=', @zinputs,
{OUT=>"1\000\0002\000\0002\000\000\0003\000\000\0003\000\000\0003\000"} ],
['total-delim-empty', '--total --output-delimiter=', @inputs,
{OUT=>"1\n\0002\n\0002\n\000\0003\n\000\0003\n\000\0003\n"
. "1\0002\0003\000total\n"} ],
# invalid dual delimiter
['delim-dual', '--output-delimiter=,', '--output-delimiter=+', @inputs,
{EXIT=>1}, {ERR => "$prog: multiple output delimiters specified\n"}],
# valid dual delimiter specification
['delim-dual2', '--output-delimiter=,', '--output-delimiter=,', @inputs,
{OUT=>"1\n,2\n,2\n,,3\n,,3\n,,3\n"} ],
# show summary, zero-terminated
['totalz-all', '--total', '-z', @zinputs,
{OUT=>"1\000\t2\000\t2\000\t\t3\000\t\t3\000\t\t3\000"
. "1\t2\t3\ttotal\000"} ],
# show summary only (-123), zero-terminated and with ',' as delimiter
['totalz-123', '--total', '-z123', '--output-delimiter=,', @zinputs,
{OUT=>"1,2,3,total\000"} ],
);
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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