#!/bin/sh
# -*- perl -*-
# Exercise du's --files0-from option.

: ${PERL=perl}
: ${srcdir=.}

$PERL -e 1 > /dev/null 2>&1 || {
  echo 1>&2 "$0: configure didn't find a usable version of Perl," \
    "so can't run this test"
  exit 77
}

exec $PERL -w -I$srcdir/.. -MFetish -- - <<\EOF
#/
require 5.003;
use strict;

(my $program_name = $0) =~ s|.*/||;

$ENV{PROG} = 'du';

# Turn off localization of executable's ouput.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;

my @Tests =
  (
   # invalid extra command line argument
   ['f-extra-arg', '--files0-from=- no-such', {IN=>"a"}, {EXIT=>1},
    {ERR => "du: no-such: you may not specify command-line arguments "
     . "with --files0-from\n"}
    ],

   # missing input file
   ['missing', '--files0-from=missing', {EXIT=>1},
    {ERR => "du: cannot open `missing' for reading: "
     . "No such file or directory\n"}],

   # empty input
   ['empty', '--files0-from=-', {EXIT=>1},
    {ERR => "du: no files specified in `-'\n"}],

   # empty input, from non-regular file
   ['empty-nonreg', '--files0-from=/dev/null', {EXIT=>1},
    {ERR => "du: no files specified in `/dev/null'\n"}],

   # one NUL
   ['nul-1', '--files0-from=-', '<', {IN=>"\0"}, {EXIT=>1},
    {ERR => "du: -:1: invalid zero-length file name\n"}],

   # two NULs
   ['nul-2', '--files0-from=-', '<', {IN=>"\0\0"}, {EXIT=>1},
    {ERR => "du: -:1: invalid zero-length file name\n"
          . "du: -:2: invalid zero-length file name\n"}],

   # one file name, no NUL
   ['1', '--files0-from=-', '<',
    {IN=>{f=>"g"}}, {AUX=>{g=>"x".64*1024}}, {OUT=>"4\tg\n"} ],

   # one file name, with NUL
   ['1a', '--files0-from=-', '<',
    {IN=>{f=>"g\0"}}, {AUX=>{g=>"x".64*1024}}, {OUT=>"4\tg\n"} ],

   # two file names, no final NUL
   ['2', '--files0-from=-', '<',
    {IN=>{f=>"g\0g"}}, {AUX=>{g=>"x".64*1024}}, {OUT=>"4\tg\n4\tg\n"} ],

   # two file names, with final NUL
   ['2a', '--files0-from=-', '<',
    {IN=>{f=>"g\0g\0"}}, {AUX=>{g=>"x".64*1024}}, {OUT=>"4\tg\n4\tg\n"} ],
  );

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;
EOF