t/20-links.t

   1 #!/usr/bin/env perl
   2 use strict;
   3 use warnings;
   4
   5 use Test::More tests => 13;
   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         ],
  18         ['end only',
  19                 [    -q    =>            '(?:(?![q-z])|q)'],
  20                 [    -qqq  =>            '(?:(?![q-z])|q(?![q-z])|qq(?![q-z])|qqq)'],
  21         ],
  22         ['start only',
  23                 [  'q-'    =>    '[q-z]'],
  24                 ['qqq-'    => '(?:[r-z]|q[r-z]|qq[q-z])'],
  25                 ['zzz-'    =>                 'zz[z-z]'],
  26         ],
  27         ['prefixed range',
  28                 [  'q-q'   =>          'q'],
  29                 [ 'qq-qq'  =>                 'qq'],
  30                 [ 'qq-qqx' =>                                 '(?:qq(?![x-z])|qqx)'],
  31                 [  'q-qx'  =>                      '(?:q(?![x-z])|qx)'],
  32         ],
  33         ['end within prefix',
  34                 ['qqq-qq'  =>                 'qq[q-z]'],
  35                 ['qqq-q'   =>       '(?:q[r-z]|qq[q-z])'],
  36         ],
  37         ['interchar range',
  38                 [  'q-x'   =>    '[q-x]'],
  39                 ['qqq-xxx' => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![x-z])|xx(?![x-z])|xxx)'],
  40                 ['qqq-xqq' => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![q-z])|xq(?![q-z])|xqq)'],
  41         ],
  42         ['interchar mixed length',
  43                 ['qqq-xq'  => '(?:[r-w]|q[r-z]|qq[q-z]|x(?![q-z])|xq)'],
  44                 [ 'qq-xqq' => '(?:[r-w]|q[q-z]|'   .  'x(?![q-z])|xq(?![q-z])|xqq)'],
  45                 [  'q-xxx' =>                '(?:[q-w]|x(?![x-z])|xx(?![x-z])|xxx)'],
  46                 ['qqq-x'   => '(?:[r-x]|q[r-z]|qq[q-z])'],
  47                 ['qaa-qb'  =>              '(?:qa[a-z]|qb)'],
  48                 ['qaa-qq'  =>       '(?:q[b-p]|qa[a-z]|qq)'],
  49         ],
  50         ['reversed',
  51                 [  'x-q'   => undef],
  52                 ['xxx-qqq' => undef],
  53                 ['xxx-q'   => undef],
  54                 ['qqq-qc'  => undef],
  55         ],
  56
  57         ['non-alphabetic offset',
  58                 [  '.-'    =>          ''],
  59                 ['...-'    => '(?:[a-z]|[^a-z][a-z])'],
  60                 [ '.q-'    => '(?:[a-z]|[^a-z][q-z])'],
  61                 [ '.q-.'   =>          '[^a-z][q-z]'],
  62         ],
  63         ['limit',
  64                 ['.q.-q'   => '(?:[a-q]|[^a-z][q-z])'],
  65                 ['..z-q'   => '(?:[a-q]|[^a-z][a-z]|[^a-z][^a-z][z-z])'],
  66                 ['.q.-z'   => '(?:[a-z]|[^a-z][q-z])'],
  67                 ['.q.-zz'  => '(?:[a-y]|[^a-z][q-z]|'        .       'z(?![z-z])|zz)'],
  68                 ['.q..-zz' => '(?:[a-y]|[^a-z][r-z]|[^a-z]q' . '[a-z]|z(?![z-z])|zz)'],
  69         ],
  70         ['non-alpha limit',
  71                 ['.q.-z.'  => '(?:[a-y]|[^a-z][q-z]|'        .       'z(?![a-z]))'],
  72                 [ '..-.'   =>                                '(?:[^a-z](?![a-z]))'],
  73                 [  '.-.'   =>                                         '(?![a-z])'],
  74                 [   '-.'   =>                                         '(?![a-z])'],
  75                 [   '-...' =>                                         '(?![a-z])(?!.[a-z])(?!..[a-z])'],
  76                 [   '-q.'  =>                           '(?:(?![q-z])|q(?![a-z]))'],
  77                 [   '-q..' =>                           '(?:(?![q-z])|q(?![a-z])(?!.[a-z]))'],
  78         #       [ '..-...' =>                                '(?:[^a-z](?![a-z])|[^a-z][^a-z](?![a-z]))'],
  79         #       [  '.-...' =>                                                   '[^a-z][^a-z](?![a-z])'],
  80                 [  'a-.'   => undef],
  81         ],
  82 );
  83
  84 for (@RANGETESTS) {
  85         my ($name, @tests) = @$_;
  86         subtest $name => sub {
  87                 plan tests => scalar @tests;
  88                 for (@tests) {
  89                         my ($in, $out) = @$_;
  90                         is(
  91                                 eval { rangematch($in) },
  92                                 defined $out ? "(?i-xsm:^$out)" : undef,
  93                                 (length $in ? $in : q{''}) . (!defined $out && ' failure')
  94                         );
  95                         diag($@) if $@;
  96                 }
  97         };
  98 }
  99