t/hl_mod.t

   1 #!/usr/bin/perl -w
   2 # Copyright (C) all contributors <meta@public-inbox.org>
   3 # License: AGPL-3.0+ <https://www.gnu.org/licenses/agpl-3.0.txt>
   4 use strict; use v5.10.1; use PublicInbox::TestCommon; use IO::Handle; # ->autoflush
   5 use Fcntl qw(:seek);
   6 require_mods 'highlight';
   7 use_ok 'PublicInbox::HlMod';
   8 my $hls = PublicInbox::HlMod->new;
   9 ok($hls, 'initialized OK');
  10 is($hls->_shebang2lang(\"#!/usr/bin/perl -w\n"), 'perl', 'perl shebang OK');
  11 is($hls->{-ext2lang}->{'pm'}, 'perl', '.pm suffix OK');
  12 is($hls->{-ext2lang}->{'pl'}, 'perl', '.pl suffix OK');
  13 like($hls->_path2lang('Makefile'), qr/\Amake/, 'Makefile OK');
  14 my $str = do { local $/; open(my $fh, '<', __FILE__); <$fh> };
  15 my $orig = $str;
  16
  17 {
  18         my $ref = $hls->do_hl(\$str, 'foo.perl');
  19         is(ref($ref), 'SCALAR', 'got a scalar reference back');
  20         ok(utf8::valid($$ref), 'resulting string is utf8::valid');
  21         like($$ref, qr/I can see you!/, 'we can see ourselves in output');
  22         like($$ref, qr/&amp;&amp;/, 'escaped &&');
  23         my $lref = $hls->do_hl_lang(\$str, 'perl');
  24         is($$ref, $$lref, 'do_hl_lang matches do_hl');
  25
  26         SKIP: {
  27                 my $w3m = require_cmd('w3m', 1) or
  28                         skip('w3m(1) missing to check output', 1);
  29                 my $cmd = [ $w3m, qw(-T text/html -dump -config /dev/null) ];
  30                 my $in = '<pre>' . $$ref . '</pre>';
  31                 my $out = xqx($cmd, undef, { 0 => \$in });
  32                 # expand tabs and normalize whitespace,
  33                 # w3m doesn't preserve tabs
  34                 $orig =~ s/\t/        /gs;
  35                 $out =~ s/\s*\z//sg;
  36                 $orig =~ s/\s*\z//sg;
  37                 is($out, $orig, 'w3m output matches');
  38         }
  39 }
  40
  41 if ('experimental, only for help text') {
  42         my $tmp = <<'EOF';
  43 :>
  44 ```perl
  45 my $foo = 1 & 2;
  46 ```
  47 :<
  48 EOF
  49         $hls->do_hl_text(\$tmp);
  50         my @hl = split(/^/m, $tmp);
  51         is($hl[0], ":&gt;\n", 'first line escaped');
  52         is($hl[1], "```perl\n", '2nd line preserved');
  53         like($hl[2], qr/<span\b/, 'code highlighted');
  54         like($hl[2], qr/&amp;/, 'ampersand escaped');
  55         is($hl[3], "```\n", '4th line preserved');
  56         is($hl[4], ":&lt;\n", '5th line escaped');
  57         is(scalar(@hl), 5, 'no extra line');
  58
  59 }
  60
  61 done_testing;