#!/bin/sh

: ${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/.. -MCoreutils -- - <<\EOF
require 5.003;
use strict;

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

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

my $prog = $ENV{PROG} || die "$0: \$PROG not specified in environment\n";

my @Tests =
    (
     ['a1', {IN=> ' 'x 1 ."y\n"}, {OUT=> ' 'x 1 ."y\n"}],
     ['a2', {IN=> ' 'x 2 ."y\n"}, {OUT=> ' 'x 2 ."y\n"}],
     ['a3', {IN=> ' 'x 3 ."y\n"}, {OUT=> ' 'x 3 ."y\n"}],
     ['a4', {IN=> ' 'x 4 ."y\n"}, {OUT=> ' 'x 4 ."y\n"}],
     ['a5', {IN=> ' 'x 5 ."y\n"}, {OUT=> ' 'x 5 ."y\n"}],
     ['a6', {IN=> ' 'x 6 ."y\n"}, {OUT=> ' 'x 6 ."y\n"}],
     ['a7', {IN=> ' 'x 7 ."y\n"}, {OUT=> ' 'x 7 ."y\n"}],
     ['a8', {IN=> ' 'x 8 ."y\n"}, {OUT=> "\ty\n"}],

     ['aa-1', '-a', {IN=> 'w'.' 'x 1 ."y\n"}, {OUT=> 'w'.' 'x 1 ."y\n"}],
     ['aa-2', '-a', {IN=> 'w'.' 'x 2 ."y\n"}, {OUT=> 'w'.' 'x 2 ."y\n"}],
     ['aa-3', '-a', {IN=> 'w'.' 'x 3 ."y\n"}, {OUT=> 'w'.' 'x 3 ."y\n"}],
     ['aa-4', '-a', {IN=> 'w'.' 'x 4 ."y\n"}, {OUT=> 'w'.' 'x 4 ."y\n"}],
     ['aa-5', '-a', {IN=> 'w'.' 'x 5 ."y\n"}, {OUT=> 'w'.' 'x 5 ."y\n"}],
     ['aa-6', '-a', {IN=> 'w'.' 'x 6 ."y\n"}, {OUT=> 'w'.' 'x 6 ."y\n"}],
     ['aa-7', '-a', {IN=> 'w'.' 'x 7 ."y\n"}, {OUT=> "w\ty\n"}],
     ['aa-8', '-a', {IN=> 'w'.' 'x 8 ."y\n"}, {OUT=> "w\t y\n"}],

     ['b-1', '-t', '2,4', {IN=> "      ."}, {OUT=>"\t\t  ."}],
     # These would infloop prior to textutils-2.0d.

     ['infloop-1', '-t', '1,2', {IN=> " \t\t .\n"}, {OUT=>"\t\t\t .\n"}],
     ['infloop-2', '-t', '4,5', {IN=> ' 'x4 . "\t\t \n"}, {OUT=>"\t\t\t \n"}],
     ['infloop-3', '-t', '2,3', {IN=> "x \t\t \n"}, {OUT=>"x \t\t \n"}],
     ['infloop-4', '-t', '1,2', {IN=> " \t\t   \n"}, {OUT=>"\t\t\t   \n"}],
     ['c-1', '-t', '1,2', {IN=> "x\t\t .\n"}, {OUT=>"x\t\t .\n"}],

     # -t implies -a
     # Feature addition (--first-only) prompted by a report from Jie Xu.
     ['tabs-1', qw(-t 3),              {IN=> "   a  b\n"}, {OUT=>"\ta\tb\n"}],
     ['tabs-2', qw(-t 3 --first-only), {IN=> "   a  b\n"}, {OUT=>"\ta  b\n"}],

     # blanks
     ['blanks-1', qw(-t 1), {IN=> " b  c   d\n"}, {OUT=> "\tb\t\tc\t\t\td\n"}],
     ['blanks-2', qw(-t 1), {IN=> "a \n"}, {OUT=> "a \n"}],
     ['blanks-3', qw(-t 1), {IN=> "a  \n"}, {OUT=> "a\t\t\n"}],
     ['blanks-4', qw(-t 1), {IN=> "a   \n"}, {OUT=> "a\t\t\t\n"}],
     ['blanks-5', qw(-t 1), {IN=> "a "}, {OUT=> "a "}],
     ['blanks-6', qw(-t 1), {IN=> "a  "}, {OUT=> "a\t\t"}],
     ['blanks-7', qw(-t 1), {IN=> "a   "}, {OUT=> "a\t\t\t"}],
     ['blanks-8', qw(-t 1), {IN=> " a a  a\n"}, {OUT=> "\ta a\t\ta\n"}],
     ['blanks-9', qw(-t 2), {IN=> "   a  a  a\n"}, {OUT=> "\t a\ta  a\n"}],
     ['blanks-10', '-t', '3,4', {IN=> "0 2 4 6\t8\n"}, {OUT=> "0 2 4 6\t8\n"}],
     ['blanks-11', '-t', '3,4', {IN=> "    4\n"}, {OUT=> "\t\t4\n"}],
     ['blanks-12', '-t', '3,4', {IN=> "01  4\n"}, {OUT=> "01\t\t4\n"}],
     ['blanks-13', '-t', '3,4', {IN=> "0   4\n"}, {OUT=> "0\t\t4\n"}],

     # It is debatable whether this test should require an environment
     # setting of e.g., _POSIX2_VERSION=1.
     ['obs-ovflo', '-18446744073709551617', {IN=>''}, {OUT=>''},
      {EXIT => 1}, {ERR => "$prog: tab stop value is too large\n"}],
    );

my $save_temps = $ENV{DEBUG};
my $verbose = $ENV{VERBOSE};

my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
exit $fail;
EOF