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　晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 . Prv8 Shell

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Current File : //proc/thread-self/root/usr/share/doc/perl-Sub-Exporter/t/col-init.t

#!/usr/bin/perl -T
use strict;
use warnings;

=head1 TEST PURPOSE

These tests exercise the handling of collections in the exporter option lists.

=cut

use Test::More tests => 3;
use Data::OptList qw(mkopt_hash);

BEGIN { use_ok('Sub::Exporter'); }

sub is_defined {
  my ($class, $value, $arg) = @_;
  return defined $value;
}

my $counter = 0;

my $config = {
  exports    => [ qw(circsaw drill handsaw nailgun) ],
  collectors => [
    INIT => sub {
      my ($value, $arg) = @_;
      return 0 if @{$arg->{import_args}}; # in other words, fail if args
      $_[0] = [ $counter++ ];
      return 1;
    },
  ]
};

$config->{$_} = mkopt_hash($config->{$_}) for qw(exports collectors);

{
  my $collection = Sub::Exporter::_collect_collections(
    $config, 
    [ ],
    'main',
  );

  is_deeply(
    $collection,
    { INIT => [ 0 ] },
    "collection returned properly from collector",
  );
}

{
  my $collection = eval {
    Sub::Exporter::_collect_collections(
      $config, 
      [ [ handsaw => undef ] ],
      'main',
    );
  };

  like(
    $@,
    qr/INIT failed/,
    "the init collector is run even when other things are here",
  );
}

haha - 2025