use strict;
use warnings;
use Test::More;
subtest 'subtest' => sub {
    Test::Builder->new->reset;
    ok 1;
};
subtest 'subtest' => sub {
    Test::Builder->new->reset;
    subtest 'subtest' => sub {
        Test::Builder->new->reset;
        ok 1;
    };
    ok 1;
};
done_testing;