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#!/bin/sh
# -*- perl -*-
# Exercise fold.

# Copyright (C) 2003, 2005, 2006 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/>.

: ${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
}

# Ensure that we don't run an older version of fold.
# Prior to 5.0.91, some of the tests below would cause fold to infloop,
# and since `make check' might be run even after a build failure, it'd
# expose just such an older version.
ver=`fold --version|sed 1q`
case $ver in
  *" $PACKAGE_VERSION") ;;
  *) echo 1>&2 \
   "$0: found unexpected version of fold, \`$ver'"
     "(expected $PACKAGE_VERSION)"
  exit 1;;
esac

me=`echo $0|sed 's,.*/,,'`
exec $PERL -w -I$srcdir/.. -MCoreutils -M"CuTmpdir qw($me)" -- - <<\EOF
#/
require 5.003;
use strict;

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

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

my @Tests =
  (
   ['s1', '-w2 -s', {IN=>"a\t"}, {OUT=>"a\n\t"}],
   ['s2', '-w4 -s', {IN=>"abcdef d\n"}, {OUT=>"abcd\nef d\n"}],
   ['s3', '-w4 -s', {IN=>"a cd fgh\n"}, {OUT=>"a \ncd \nfgh\n"}],
   ['s4', '-w4 -s', {IN=>"abc ef\n"}, {OUT=>"abc \nef\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