t/20-links.t

   1 #!/usr/bin/env perl
   2 use strict;
   3 use warnings;
   4
   5 use Test::More tests => 47;
   6 use Test::NoWarnings;
   7 use Data::Dump 'pp';
   8
   9 BEGIN { use_ok('List::Index' => 'rangematch'); }
  10
  11 my @RANGETESTS = (
  12         # single prefix
  13         [   q      =>          'q'],
  14         ['#foo.!$' =>          '\#foo\.\!\$'],
  15         [   '-'    =>          ''],
  16         [   ''     =>          ''],
  17         # end only
  18         [    -q    =>            '(?:(?![q-z])|q)'],
  19         [    -qqq  =>            '(?:(?![q-z])|q(?![q-z])|qq(?![q-z])|qqq)'],
  20         # start only
  21         [  'q-'    =>    '[q-z]'],
  22         ['qqq-'    => '(?:[r-z]|q[r-z]|qq[q-z])'],
  23         ['zzz-'    =>                 'zz[z-z]'],
  24         # prefixed range
  25         [  'q-q'   =>          'q'],
  26         [ 'qq-qq'  =>                 'qq'],
  27         [ 'qq-qqx' =>                                 '(?:qq(?![x-z])|qqx)'],
  28         [  'q-qx'  =>                      '(?:q(?![x-z])|qx)'],
  29         # end within prefix
  30         ['qqq-qq'  =>                 'qq[q-z]'],
  31         ['qqq-q'   =>       '(?:q[r-z]|qq[q-z])'],
  32         # interchar range
  33         [  'q-x'   =>    '[q-x]'],
  34         ['qqq-xxx' => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![x-z])|xx(?![x-z])|xxx)'],
  35         ['qqq-xqq' => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![q-z])|xq(?![q-z])|xqq)'],
  36         # interchar mixed length
  37         ['qqq-xq'  => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![q-z])|xq)'],
  38         [ 'qq-xqq' => '(?:[r-w]|q[q-z]|'   .  'x(?![q-z])|xq(?![q-z])|xqq)'],
  39         [  'q-xxx' =>                '(?:[q-w]|x(?![x-z])|xx(?![x-z])|xxx)'],
  40         ['qqq-x'   => '(?:[r-x]|q[r-z]|qq[q-z])'],
  41         ['qaa-qb'  =>              '(?:qa[a-z]|qb)'],
  42         ['qaa-qq'  =>       '(?:q[b-p]|qa[a-z]|qq)'],
  43         # reversed
  44         [  'x-q'   => undef],
  45         ['xxx-qqq' => undef],
  46         ['xxx-q'   => undef],
  47         ['qqq-qc'  => undef],
  48
  49         # non-alphabetic offset
  50         [  '.-'    =>          ''],
  51         ['...-'    => '(?:[a-z]|[^a-z][a-z])'],
  52         [ '.q-'    => '(?:[a-z]|[^a-z][q-z])'],
  53         [ '.q-.'   =>          '[^a-z][q-z]'],
  54         # limit
  55         ['.q.-q'   => '(?:[a-q]|[^a-z][q-z])'],
  56         ['..z-q'   => '(?:[a-q]|[^a-z][a-z]|[^a-z][^a-z][z-z])'],
  57         ['.q.-z'   => '(?:[a-z]|[^a-z][q-z])'],
  58         ['.q.-zz'  => '(?:[a-y]|[^a-z][q-z]|'        .       'z(?![z-z])|zz)'],
  59         ['.q..-zz' => '(?:[a-y]|[^a-z][r-z]|[^a-z]q' . '[a-z]|z(?![z-z])|zz)'],
  60         # non-alpha limit
  61         ['.q.-z.'  => '(?:[a-y]|[^a-z][q-z]|'        .       'z(?![a-z]))'],
  62         [ '..-.'   =>                                '(?:[^a-z](?![a-z]))'],
  63         [  '.-.'   =>                                         '(?![a-z])'],
  64         [   '-.'   =>                                         '(?![a-z])'],
  65         [   '-...' =>                                         '(?![a-z])(?!.[a-z])(?!..[a-z])'],
  66         [   '-q.'  =>                           '(?:(?![q-z])|q(?![a-z]))'],
  67         [   '-q..' =>                           '(?:(?![q-z])|q(?![a-z])(?!.[a-z]))'],
  68 #       [ '..-...' =>                                '(?:[^a-z](?![a-z])|[^a-z][^a-z](?![a-z]))'],
  69 #       [  '.-...' =>                                                   '[^a-z][^a-z](?![a-z])'],
  70         #
  71         [  'a-.'   => undef],
  72 );
  73
  74 for (@RANGETESTS) {
  75         my ($in, $out) = @$_;
  76         is(
  77                 eval { rangematch($in) },
  78                 defined $out ? "(?i-xsm:^$out)" : undef,
  79                 (length $in ? $in : q{''}) . (!defined $out && ' failure')
  80         );
  81         diag($@) if $@;
  82 }
  83