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。 .
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Current File : //usr/share/doc/perl-Test-Simple/t/Test2/regression/ipc_files_abort_exit.t
use strict;
use warnings;
use Test2::Tools::Tiny;
use Test2::Util qw/CAN_FORK/;

BEGIN {
    skip_all "Set AUTHOR_TESTING to run this test" unless $ENV{AUTHOR_TESTING};
    skip_all "System cannot fork" unless CAN_FORK;
    skip_all "known to fail on $]" if $] le "5.006002";
}

use IPC::Open3 qw/open3/;
use File::Temp qw/tempdir/;

my $tempdir = tempdir(CLEANUP => 1);

open(my $stdout, '>', "$tempdir/stdout") or die "Could not open: $!";
open(my $stderr, '>', "$tempdir/stderr") or die "Could not open: $!";

my $pid = open3(undef, ">&" . fileno($stdout), ">&" . fileno($stderr), $^X, '-Ilib', '-e', <<'EOT');
use Test2::IPC::Driver::Files;
use Test2::IPC;
use Test2::Tools::Tiny;
use Test2::API qw/test2_ipc/;
plan 1;
ok(1);

my $tmpdir = test2_ipc()->tempdir;
open(my $fh, '>', "$tmpdir/leftover") or die "Could not open file: $!";
print $fh "XXX\n";
close($fh) or die "Could not clone file";

print "TEMPDIR: $tmpdir\n";

exit 100;

EOT

waitpid($pid, 0);
my $exit = $?;

open($stdout, '<', "$tempdir/stdout") or die "Could not open: $!";
open($stderr, '<', "$tempdir/stderr") or die "Could not open: $!";

$stdout = join "" => <$stdout>;
$stderr = join "" => <$stderr>;

is(($exit >> 8), 255, "exited 255");
like($stderr, qr{^IPC Fatal Error: Leftover files in the directory \(.*/leftover\)!$}m, "Got expected error");
like($stdout, qr{^Bail out! IPC Fatal Error: Leftover files in the directory \(.*leftover\)!$}m, "Got a bail printed");

if(ok($stdout =~ m/^TEMPDIR: (.*)$/m, "Found temp dir")) {
    chomp(my $tmpdir = $1);
    if (-d $tmpdir) {
        note "Cleaning up temp dir\n";

        opendir(my $dh, $tmpdir) or diag "Could not open temp dir: $!";
        for my $file (readdir($dh)) {
            next if $file =~ m/^\./;
            unlink("$tmpdir/$file") or diag "Could not remove $tmpdir/$file: $!";
        }
        closedir($dh);
        rmdir($tmpdir) or diag "Could not remove temp dir: $!";
    }
}

done_testing;

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