#!/usr/bin/perl
# Test "mktemp".

# Copyright (C) 2007-2009 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 $ME = $0) =~ s|.*/||;

sub check_tmp($$)
{
  my ($file, $file_or_dir) = @_;

  my (undef, undef, $mode, undef) = stat $file
   or die "$ME: failed to stat $file: $!\n";
  my $required_mode;
  if ($file_or_dir eq 'D') {
    -d $file or die "$ME: $file isn't a directory\n";
    -x $file or die "$ME: $file isn't owner-searchable\n";
    $required_mode = 0700;
  } elsif ($file_or_dir eq 'F') {
    -f $file or die "$ME: $file isn't a regular file\n";
    $required_mode = 0600;
  }
  -r $file or die "$ME: $file isn't owner-readable\n";
  -w $file or die "$ME: $file isn't owner-writable\n";
  ($mode & 0777) == $required_mode
    or die "$ME: $file doesn't have required permissions\n";

  $file_or_dir eq 'D'
    and do { rmdir $file or die "$ME: failed to rmdir $file: $!\n" };
  $file_or_dir eq 'F'
    and do { unlink $file or die "$ME: failed to unlink $file: $!\n" };
}

# Turn off localization of executable's output.
@ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
my $prog = 'mktemp';
my $bad_dir = 'no/such/dir';

my @Tests =
    (
     # test-name, [option, option, ...] {OUT=>"expected-output"}
     #
     ['too-many', 'a b',
      {ERR=>"$prog: too many templates\n"
       . "Try `$prog --help' for more information.\n"}, {EXIT => 1} ],
     ['too-many-q', '-q a b', {EXIT => 1} ],

     ['too-few-x', 'foo.XX',
      {ERR=>"$prog: too few X's in template `foo.XX'\n"}, {EXIT => 1} ],

     ['1f', 'bar.XXXX', {OUT => "bar.ZZZZ\n"},
      {OUT_SUBST => 's,\.....$,.ZZZZ,'},
      {POST => sub { my ($f) = @_; defined $f or return; chomp $f;
       check_tmp $f, 'F'; }}
     ],

     # Create a temporary directory.
     ['1d', '-d f.XXXX', {OUT => "f.ZZZZ\n"},
      {OUT_SUBST => 's,\.....$,.ZZZZ,'},
      {POST => sub { my ($f) = @_; defined $f or return; chomp $f;
       check_tmp $f, 'D'; }}
     ],

     # Use a template consisting solely of X's
     ['1d-allX', '-d XXXX', {OUT => "ZZZZ\n"},
      {OUT_SUBST => 's,^....$,ZZZZ,'},
      {POST => sub { my ($f) = @_; defined $f or return; chomp $f;
       check_tmp $f, 'D'; }}
     ],

     ['invalid-tmpl', '-t a/bXXXX',
      {ERR=>"$prog: invalid template, `a/bXXXX', "
       . "contains directory separator\n"}, {EXIT => 1} ],

     ['invalid-t2', '--tmpdir=a /bXXXX',
      {ERR=>"$prog: invalid template, `/bXXXX'; "
       . "with --tmpdir, it may not be absolute\n"}, {EXIT => 1} ],

     ['tmp-w-slash', '--tmpdir=. a/bXXXX',
      {PRE => sub {mkdir 'a',0755 or die "a: $!\n"}},
      {OUT_SUBST => 's,b....$,bZZZZ,'},
      {OUT => "./a/bZZZZ\n"},
      {POST => sub { my ($f) = @_; defined $f or return; chomp $f;
       check_tmp $f, 'F'; unlink $f; rmdir 'a' or die "rmdir a: $!\n" }}
     ],

     ['pipe-bad-tmpdir',
      {ENV => "TMPDIR=$bad_dir"},
      {ERR_SUBST => "s,($bad_dir/)[^']+': .*,\$1...,"},
      {ERR => "$prog: failed to create file via template `$bad_dir/...\n"},
      {EXIT => 1}],
    );

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

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