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This is for conformance to POSIX.1-2024 * src/tsort.c: Include getopt.h. (main): Accept and ignore -w. Do not bother altering the usage message, as the option is useless. * tests/misc/tsort.pl (cycle-3): New test.
71 lines
2.6 KiB
Perl
Executable File
71 lines
2.6 KiB
Perl
Executable File
#!/usr/bin/perl
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# Test "tsort".
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# Copyright (C) 1999-2025 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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use strict;
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(my $program_name = $0) =~ s|.*/||;
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# Turn off localization of executable's output.
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@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
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my @Tests =
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(
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['cycle-1', {IN => {f => "t b\nt s\ns t\n"}}, {OUT => "s\nt\nb\n"},
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{EXIT => 1},
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{ERR => "tsort: f: input contains a loop:\ntsort: s\ntsort: t\n"} ],
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['cycle-2', {IN => {f => "t x\nt s\ns t\n"}}, {OUT => "s\nt\nx\n"},
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{EXIT => 1},
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{ERR => "tsort: f: input contains a loop:\ntsort: s\ntsort: t\n"} ],
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['cycle-3', '-w', {IN => {f => "a a\na b\na c\nc a\nb a"}},
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{OUT => "a\nc\nb\n"}, {EXIT => 1},
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{ERR => "tsort: f: input contains a loop:\ntsort: a\ntsort: b\n"
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. "tsort: f: input contains a loop:\ntsort: a\ntsort: c\n"} ],
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['posix-1', {IN => "a b c c d e\ng g\nf g e f\nh h\n"},
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{OUT => "a\nc\nd\nh\nb\ne\nf\ng\n"}],
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['posix-2', {IN => "b a\nd c\nz h x h r h\n"},
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{OUT => "b\nd\nr\nx\nz\na\nc\nh\n"}],
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['linear-1', {IN => "a b b c c d d e e f f g\n"},
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{OUT => "a\nb\nc\nd\ne\nf\ng\n"}],
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['tree-1', {IN => "a b b c c d d e e f f g\nc x x y y z\n"},
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{OUT => "a\nb\nc\nx\nd\ny\ne\nz\nf\ng\n"}],
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['tree-2', {IN => "a b b c c d d e e f f g\nc x x y y z\nf r r s s t\n"},
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{OUT => "a\nb\nc\nx\nd\ny\ne\nz\nf\nr\ng\ns\nt\n"}],
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# Before coreutils-5.0.1, given an odd number of input tokens,
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# tsort would accept that and treat the input as if an additional
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# copy of the final token were appended.
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['odd', {IN => "a\n"},
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{EXIT => 1},
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{ERR => "tsort: odd.1: input contains an odd number of tokens\n"}],
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['only-one', {IN => {f => ""}}, {IN => {g => ""}},
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{EXIT => 1},
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{ERR => "tsort: extra operand 'g'\n"
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. "Try 'tsort --help' for more information.\n"}],
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);
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my $save_temps = $ENV{DEBUG};
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my $verbose = $ENV{VERBOSE};
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my $prog = 'tsort';
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my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
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exit $fail;
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