tests/misc/sort-merge.pl

   1 #!/usr/bin/perl
   2 # Test "sort -m".
   3
   4 # Copyright (C) 2002-2019 Free Software Foundation, Inc.
   5
   6 # This program is free software: you can redistribute it and/or modify
   7 # it under the terms of the GNU General Public License as published by
   8 # the Free Software Foundation, either version 3 of the License, or
   9 # (at your option) any later version.
  10
  11 # This program is distributed in the hope that it will be useful,
  12 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 # GNU General Public License for more details.
  15
  16 # You should have received a copy of the GNU General Public License
  17 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  18
  19 use strict;
  20
  21 my $limits = getlimits ();
  22
  23 (my $program_name = $0) =~ s|.*/||;
  24 my $prog = 'sort';
  25
  26 # Turn off localization of executable's output.
  27 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  28
  29 # three empty files and one that says 'foo'
  30 my @inputs = (+(map{{IN=> {"empty$_"=> ''}}}1..3), {IN=> {foo=> "foo\n"}});
  31
  32 my $big_input = "aaa\n" x 1024;
  33
  34 # don't need to check for existence, since we're running in a temp dir
  35 my $badtmp = 'does/not/exist';
  36
  37 my $bigint = $limits->{UINTMAX_OFLOW};
  38
  39 my @Tests =
  40     (
  41      ['m1', '-m', @inputs, {OUT=>"foo\n"}],
  42
  43      # check validation of --batch-size option
  44      ['nmerge-0', "-m --batch-size=0", @inputs,
  45         {ERR=>"$prog: invalid --batch-size argument '0'\n".
  46               "$prog: minimum --batch-size argument is '2'\n"}, {EXIT=>2}],
  47
  48      ['nmerge-1', "-m --batch-size=1", @inputs,
  49         {ERR=>"$prog: invalid --batch-size argument '1'\n".
  50               "$prog: minimum --batch-size argument is '2'\n"}, {EXIT=>2}],
  51
  52      ['nmerge-neg', "-m --batch-size=-1", @inputs,
  53         {ERR=>"$prog: invalid --batch-size argument '-1'\n"}, {EXIT=>2}],
  54
  55      ['nmerge-nan', "-m --batch-size=a", @inputs,
  56         {ERR=>"$prog: invalid --batch-size argument 'a'\n"}, {EXIT=>2}],
  57
  58      ['nmerge-big', "-m --batch-size=$bigint", @inputs,
  59         {ERR_SUBST=>'s/(current rlimit is) \d+/$1/'},
  60         {ERR=>"$prog: --batch-size argument '$bigint' too large\n".
  61               "$prog: maximum --batch-size argument with current rlimit is\n"},
  62         {EXIT=>2}],
  63
  64      # This should work since nmerge >= the number of input files
  65      ['nmerge-yes', "-m --batch-size=4 -T$badtmp", @inputs, {OUT=>"foo\n"}],
  66
  67      # this should fail since nmerge < # of input files, so
  68      # temp files are needed
  69      ['nmerge-no', "-m --batch-size=2 -T$badtmp", @inputs,
  70         {ERR_SUBST=>"s|': .*|':|"},
  71         {ERR=>"$prog: cannot create temporary file in '$badtmp':\n"},
  72         {EXIT=>2}],
  73
  74      # This used to fail because setting batch-size without also setting
  75      # buffer size would cause the buffer size to be set to the minimum.
  76      ['batch-size', "--batch-size=16 -T$badtmp", {IN=> {big=> $big_input}},
  77         {OUT=>$big_input}],
  78     );
  79
  80 my $save_temps = $ENV{DEBUG};
  81 my $verbose = $ENV{VERBOSE};
  82
  83 my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
  84 exit $fail;