use strict;
use warnings;
use Filesys::POSIX      ();
use Filesys::POSIX::Mem ();
use Filesys::POSIX::Bits;
use Test::More ( 'tests' => 2 );
use Test::Exception;
use Test::NoWarnings;
throws_ok {
    Filesys::POSIX->new;
}
qr/^No root filesystem specified/, "Filesys::POSIX->new() requires a root filesystem";