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/Legacy/diag.t
#!perl -w
use strict;

use Test2::Util qw/CAN_THREAD/;

# Turn on threads here, if available, since this test tends to find
# lots of threading bugs.
BEGIN {
    if (CAN_THREAD) {
        require threads;
        threads->import;
    }
}

BEGIN {
    if( $ENV{PERL_CORE} ) {
        chdir 't';
        @INC = ('../lib', 'lib');
    }
    else {
        unshift @INC, 't/lib';
    }
}

use Test::Builder::NoOutput;
use Test::More tests => 7;

my $test = Test::Builder::NoOutput->create;

# Test diag() goes to todo_output() in a todo test.
{
    $test->todo_start();

    $test->diag("a single line");
    is( $test->read('todo'), <<'DIAG',   'diag() with todo_output set' );
# a single line
DIAG

    my $ret = $test->diag("multiple\n", "lines");
    is( $test->read('todo'), <<'DIAG',   '  multi line' );
# multiple
# lines
DIAG
    ok( !$ret, 'diag returns false' );

    $test->todo_end();
}


# Test diagnostic formatting
{
    $test->diag("# foo");
    is( $test->read('err'), "# # foo\n", "diag() adds # even if there's one already" );

    $test->diag("foo\n\nbar");
    is( $test->read('err'), <<'DIAG', "  blank lines get escaped" );
# foo
# 
# bar
DIAG

    $test->diag("foo\n\nbar\n\n");
    is( $test->read('err'), <<'DIAG', "  even at the end" );
# foo
# 
# bar
# 
DIAG
}


# [rt.cpan.org 8392] diag(@list) emulates print
{
    $test->diag(qw(one two));

    is( $test->read('err'), <<'DIAG' );
# onetwo
DIAG
}

haha - 2025