tests/misc/unexpand.pl

   1 #!/usr/bin/perl
   2 # Test "unexpand".
   3
   4 # Copyright (C) 2000-2019 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
  25 # Turn off localization of executable's output.
  26 @ENV{qw(LANGUAGE LANG LC_ALL)} = ('C') x 3;
  27
  28 my $prog = 'unexpand';
  29
  30 my @Tests =
  31     (
  32      ['a1', {IN=> ' 'x 1 ."y\n"}, {OUT=> ' 'x 1 ."y\n"}],
  33      ['a2', {IN=> ' 'x 2 ."y\n"}, {OUT=> ' 'x 2 ."y\n"}],
  34      ['a3', {IN=> ' 'x 3 ."y\n"}, {OUT=> ' 'x 3 ."y\n"}],
  35      ['a4', {IN=> ' 'x 4 ."y\n"}, {OUT=> ' 'x 4 ."y\n"}],
  36      ['a5', {IN=> ' 'x 5 ."y\n"}, {OUT=> ' 'x 5 ."y\n"}],
  37      ['a6', {IN=> ' 'x 6 ."y\n"}, {OUT=> ' 'x 6 ."y\n"}],
  38      ['a7', {IN=> ' 'x 7 ."y\n"}, {OUT=> ' 'x 7 ."y\n"}],
  39      ['a8', {IN=> ' 'x 8 ."y\n"}, {OUT=> "\ty\n"}],
  40
  41      ['aa-1', '-a', {IN=> 'w'.' 'x 1 ."y\n"}, {OUT=> 'w'.' 'x 1 ."y\n"}],
  42      ['aa-2', '-a', {IN=> 'w'.' 'x 2 ."y\n"}, {OUT=> 'w'.' 'x 2 ."y\n"}],
  43      ['aa-3', '-a', {IN=> 'w'.' 'x 3 ."y\n"}, {OUT=> 'w'.' 'x 3 ."y\n"}],
  44      ['aa-4', '-a', {IN=> 'w'.' 'x 4 ."y\n"}, {OUT=> 'w'.' 'x 4 ."y\n"}],
  45      ['aa-5', '-a', {IN=> 'w'.' 'x 5 ."y\n"}, {OUT=> 'w'.' 'x 5 ."y\n"}],
  46      ['aa-6', '-a', {IN=> 'w'.' 'x 6 ."y\n"}, {OUT=> 'w'.' 'x 6 ."y\n"}],
  47      ['aa-7', '-a', {IN=> 'w'.' 'x 7 ."y\n"}, {OUT=> "w\ty\n"}],
  48      ['aa-8', '-a', {IN=> 'w'.' 'x 8 ."y\n"}, {OUT=> "w\t y\n"}],
  49
  50      ['b-1', '-t', '2,4', {IN=> "      ."}, {OUT=>"\t\t  ."}],
  51      # These would infloop prior to textutils-2.0d.
  52
  53      ['infloop-1', '-t', '1,2', {IN=> " \t\t .\n"}, {OUT=>"\t\t\t .\n"}],
  54      ['infloop-2', '-t', '4,5', {IN=> ' 'x4 . "\t\t \n"}, {OUT=>"\t\t\t \n"}],
  55      ['infloop-3', '-t', '2,3', {IN=> "x \t\t \n"}, {OUT=>"x\t\t\t \n"}],
  56      ['infloop-4', '-t', '1,2', {IN=> " \t\t   \n"}, {OUT=>"\t\t\t   \n"}],
  57      ['c-1', '-t', '1,2', {IN=> "x\t\t .\n"}, {OUT=>"x\t\t .\n"}],
  58
  59      # -t implies -a
  60      # Feature addition (--first-only) prompted by a report from Jie Xu.
  61      ['tabs-1', qw(-t 3),              {IN=> "   a  b\n"}, {OUT=>"\ta\tb\n"}],
  62      ['tabs-2', qw(-t 3 --first-only), {IN=> "   a  b\n"}, {OUT=>"\ta  b\n"}],
  63
  64      # blanks
  65      ['blanks-1', qw(-t 1), {IN=> " b  c   d\n"}, {OUT=> "\tb\t\tc\t\t\td\n"}],
  66      ['blanks-2', qw(-t 1), {IN=> "a \n"}, {OUT=> "a \n"}],
  67      ['blanks-3', qw(-t 1), {IN=> "a  \n"}, {OUT=> "a\t\t\n"}],
  68      ['blanks-4', qw(-t 1), {IN=> "a   \n"}, {OUT=> "a\t\t\t\n"}],
  69      ['blanks-5', qw(-t 1), {IN=> "a "}, {OUT=> "a "}],
  70      ['blanks-6', qw(-t 1), {IN=> "a  "}, {OUT=> "a\t\t"}],
  71      ['blanks-7', qw(-t 1), {IN=> "a   "}, {OUT=> "a\t\t\t"}],
  72      ['blanks-8', qw(-t 1), {IN=> " a a  a\n"}, {OUT=> "\ta a\t\ta\n"}],
  73      ['blanks-9', qw(-t 2), {IN=> "   a  a  a\n"}, {OUT=> "\t a\ta\t a\n"}],
  74      ['blanks-10', '-t', '3,4', {IN=> "0 2 4 6\t8\n"}, {OUT=> "0 2 4 6\t8\n"}],
  75      ['blanks-11', '-t', '3,4', {IN=> "    4\n"}, {OUT=> "\t\t4\n"}],
  76      ['blanks-12', '-t', '3,4', {IN=> "01  4\n"}, {OUT=> "01\t\t4\n"}],
  77      ['blanks-13', '-t', '3,4', {IN=> "0   4\n"}, {OUT=> "0\t\t4\n"}],
  78
  79      # POSIX says spaces should only follow tabs. Also a single
  80      # trailing space is not converted to a tab, when before
  81      # a field starting with non blanks
  82      ['posix-1', '-a', {IN=> "1234567   \t1\n"}, {OUT=>"1234567\t\t1\n"}],
  83      ['posix-2', '-a', {IN=> "1234567  \t1\n"},  {OUT=>"1234567\t\t1\n"}],
  84      ['posix-3', '-a', {IN=> "1234567 \t1\n"},   {OUT=>"1234567\t\t1\n"}],
  85      ['posix-4', '-a', {IN=> "1234567\t1\n"},    {OUT=>"1234567\t1\n"}],
  86      ['posix-5', '-a', {IN=> "1234567  1\n"},    {OUT=>"1234567\t 1\n"}],
  87      ['posix-6', '-a', {IN=> "1234567 1\n"},     {OUT=>"1234567 1\n"}],
  88
  89      # It is debatable whether this test should require an environment
  90      # setting of e.g., _POSIX2_VERSION=1.
  91      ['obs-ovflo', "-$limits->{UINTMAX_OFLOW}", {IN=>''}, {OUT=>''},
  92       {EXIT => 1}, {ERR => "$prog: tab stop value is too large\n"}],
  93
  94
  95      # Test input with backspaces '\b' ('bs1' is the baseline, without \b)
  96      # Note: If users report errors in these tests, copy&pasting results from
  97      # their terminate output might be confusing due to '\b' overriding
  98      # characters. For details see '\b' tests in 'expand.pl'.
  99      ['bs1', '-a -t4', {IN=>"aa  c\n"},    {OUT=>"aa\tc\n"}],
 100      ['bs2', '-a -t4', {IN=>"aa\b  c\n"},  {OUT=>"aa\b  c\n"}],
 101      ['bs3', '-a -t4', {IN=>"aa\b   c\n"}, {OUT=>"aa\b\tc\n"}],
 102      ['bs4', '-a -t3', {IN=>"aa\b  c\n"},  {OUT=>"aa\b\tc\n"}],
 103
 104      # Undocumented feature:
 105      #   treat "unexpand -7"  as "unexpand --first-only --tabs 7" ,
 106      #   and   "unexpand -90" as "unexpand --first-only --tabs 90",
 107      ['u1', '-a -3',    {IN=>"a  b  c"}, {OUT=>"a\tb\tc"}],
 108      ['u2', '-a -4,9',  {IN=>"a   b    c"}, {OUT=>"a\tb\tc"}],
 109      ['u3', '-a -11',   {IN=>"a          b"}, {OUT=>"a\tb"}],
 110      # Test all digits (for full code coverage)
 111      ['u4', '-a -2,6',  {IN=>"a b   c"}, {OUT=>"a b\tc"}],
 112      ['u5', '-a -7',    {IN=>"a      b"},    {OUT=>"a\tb"}],
 113      ['u6', '-a -8',    {IN=>"a       b"},    {OUT=>"a\tb"}],
 114      # This syntax is handled internally as "-3, -9"
 115      ['u7', '-a -3,9',  {IN=>"a  b     c"}, {OUT=>"a\tb\tc"}],
 116      # Default (without -a) is --first-only:
 117      ['u8', '-3',  {IN=>"   a   b"}, {OUT=>"\ta   b"}],
 118
 119      # Arguably this should minimize translation as is done on Solaris.
 120      # I.e., not modify the input.  But since the result is equivalent,
 121      # and to be consistent in output with older versions, we output
 122      # a '\t' rather than a space for the second tab position.
 123      # For more detailed comparison with other implementations see:
 124      # https://lists.gnu.org/r/coreutils/2016-06/msg00015.html
 125      # https://lists.gnu.org/r/coreutils/2016-07/msg00011.html
 126      ['ts1', '-t8,9', {IN=>"x\t \t y\n"},    {OUT=>"x\t\t\t y\n"}],
 127      # There is no ambiguity here. This should always be the output.
 128      ['ts2', '-t5,8', {IN=>"x\t \t y\n"},    {OUT=>"x\t\t y\n"}],
 129     );
 130
 131 my $save_temps = $ENV{DEBUG};
 132 my $verbose = $ENV{VERBOSE};
 133
 134 my $fail = run_tests ($program_name, $prog, \@Tests, $save_temps, $verbose);
 135 exit $fail;