$ cat 641197.t
use strict;
use warnings;
use Test::More qw(no_plan);
my $pid = fork;
($pid) ? print "ok 1\n" : print "ok 2\n";
__END__

$ prove 641197.t
641197....ok 1/0Confused test output: test 2 answered after test 2
# No tests run!
641197....dubious
        Test returned status 255 (wstat 65280, 0xff00)
FAILED--1 test script could be run, alas--no output ever seen
$