mirror of
git://git.sv.gnu.org/coreutils.git
synced 2026-02-18 05:12:15 +02:00
e7a2580b96
Run "make update-copyright" and then... * gnulib: Update to latest with copyright year adjusted. * tests/init.sh: Sync with gnulib to pick up copyright year. * bootstrap: Likewise. * tests/sample-test: Adjust to use the single most recent year.
111 lines
3.9 KiB
Perl
Executable File
111 lines
3.9 KiB
Perl
Executable File
#!/usr/bin/perl
|
|
# Exercise head's --bytes=-N option.
|
|
|
|
# Copyright (C) 2003-2017 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|.*/||;
|
|
|
|
$ENV{PROG} = 'head';
|
|
|
|
# Turn off localization of executable's output.
|
|
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
|
|
|
|
# This should match the definition in head.c.
|
|
my $READ_BUFSIZE = 8192;
|
|
|
|
my @Tests =
|
|
(
|
|
# Elide the exact size of the file.
|
|
['elide-b1', "--bytes=-2", {IN=>"a\n"}, {OUT=>''}],
|
|
# Elide more than the size of the file.
|
|
['elide-b2', "--bytes=-2", {IN=>"a"}, {OUT=>''}],
|
|
# Leave just one byte.
|
|
['elide-b3', "--bytes=-2", {IN=>"abc"}, {OUT=>'a'}],
|
|
# Make it so the elided bytes straddle the end of the first
|
|
# $READ_BUFSIZE block.
|
|
['elide-b4', "--bytes=-2",
|
|
{IN=> 'a' x ($READ_BUFSIZE-3) . "\nbcd"},
|
|
{OUT=>'a' x ($READ_BUFSIZE-3) . "\nb"}],
|
|
# Make it so the elided bytes straddle the end of the 2nd
|
|
# $READ_BUFSIZE block.
|
|
['elide-b5', "--bytes=-2",
|
|
{IN=> 'a' x (2 * $READ_BUFSIZE - 2) . 'bcd'},
|
|
{OUT=>'a' x (2 * $READ_BUFSIZE - 2) . 'b'}],
|
|
|
|
['elide-l0', "--lines=-1", {IN=>''}, {OUT=>''}],
|
|
['elide-l1', "--lines=-1", {IN=>"a\n"}, {OUT=>''}],
|
|
['elide-l2', "--lines=-1", {IN=>"a"}, {OUT=>''}],
|
|
['elide-l3', "--lines=-1", {IN=>"a\nb"}, {OUT=>"a\n"}],
|
|
['elide-l4', "--lines=-1", {IN=>"a\nb\n"}, {OUT=>"a\n"}],
|
|
['elide-l5', "--lines=-0", {IN=>"a\nb\n"}, {OUT=>"a\nb\n"}],
|
|
['elide-l6', "--lines=-0", {IN=>"a\nb"}, {OUT=>"a\nb"}],
|
|
);
|
|
|
|
if ($ENV{RUN_EXPENSIVE_TESTS})
|
|
{
|
|
# Brute force: use all combinations of file sizes [0..20] and
|
|
# number of bytes to elide [0..20]. For better coverage, recompile
|
|
# head with -DHEAD_TAIL_PIPE_READ_BUFSIZE=4 and
|
|
# -DHEAD_TAIL_PIPE_BYTECOUNT_THRESHOLD=8
|
|
my $s = "abcdefghijklmnopqrst";
|
|
for my $file_size (0..20)
|
|
{
|
|
for my $n_elide (0..20)
|
|
{
|
|
my $input = substr $s, 0, $file_size;
|
|
my $out_len = $n_elide < $file_size ? $file_size - $n_elide : 0;
|
|
my $output = substr $input, 0, $out_len;
|
|
my $t = ["elideb$file_size-$n_elide", "--bytes=-$n_elide",
|
|
{IN=>$input}, {OUT=>$output}];
|
|
push @Tests, $t;
|
|
my @u = @$t;
|
|
# Insert the ---presume-input-pipe option.
|
|
$u[0] .= 'p';
|
|
$u[1] .= ' ---presume-input-pipe';
|
|
push @Tests, \@u;
|
|
}
|
|
}
|
|
|
|
$s =~ s/(.)/$1\n/g;
|
|
$s .= 'u'; # test without trailing '\n'
|
|
for my $file_size (0..21)
|
|
{
|
|
for my $n_elide (0..21)
|
|
{
|
|
my $input = substr $s, 0, 2 * $file_size;
|
|
my $out_len = $n_elide < $file_size ? $file_size - $n_elide : 0;
|
|
my $output = substr $input, 0, 2 * $out_len;
|
|
my $t = ["elidel$file_size-$n_elide", "--lines=-$n_elide",
|
|
{IN=>$input}, {OUT=>$output}];
|
|
push @Tests, $t;
|
|
my @u = @$t;
|
|
# Insert the ---presume-input-pipe option.
|
|
$u[0] .= 'p';
|
|
$u[1] .= ' ---presume-input-pipe';
|
|
push @Tests, \@u;
|
|
}
|
|
}
|
|
}
|
|
|
|
my $save_temps = $ENV{DEBUG};
|
|
my $verbose = $ENV{VERBOSE};
|
|
|
|
my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";
|
|
my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
|
|
exit $fail;
|