#!/usr/bin/perl

use strict;
use warnings;
use Test::Simple tests => 1;

sub mycheck
{
   open( FH, '>', '/tmp/x/logfile' ) or return sub
      {
         warn "Cannot open file [$!]";
         return 1;
      };
   foreach my $line (<DATA>)
   {
      print FH $line or return sub
         {
            warn "Cannot write to file [$!]";
            return 2;
         };
   }
   close FH;
   return 0
}

ok( mycheck() == 0, "mycheck test" );

__DATA__
dr_test_class ;; empty ;; empty ;; empty ;; empty
dr_test_kept ;; handle_dr_test ;; /etc/dr_test ;; ;; kept ;; mojolicious

$ ./foo.pl 
1..1
not ok 1 - mycheck test
#   Failed test 'mycheck test'
#   at ./foo.pl line 26.
# Looks like you failed 1 test of 1.