Honored monks,
This very question has been discussed 2 years ago in this node: How to test a module that exits? A interesting and related discussion on the perl.qa was titled Should TAP capture exit codes? If the module were to die instead of exit, I would use Test::Exception to catch a die like this: 
 
$ cat test_exit.pl 
use strict; 
use warnings;

sub killer { die "hasta la vista baby"; }
sub exiter { exit(42); }

1;
__END__

[download]
$ cat test_exit.t
use warnings;
use strict;

use Test::More tests => 2;
use Test::Exception;
ok(require('test_exit.pl'), 'loaded');
throws_ok( sub { killer () }, qr/hasta la vista baby/, q{Expected kill
+er to die});
__END__

[download]
$ prove test_exit.t
test_exit....ok
All tests successful.
Files=1, Tests=2,  0 wallclock secs ( 0.04 cusr +  0.01 csys =  0.05 C
+PU)

[download]
Now I wonder what kind of tricks I can use to test exit in the same way as die?
Update: Test::Trap is a brilliant solution. Thanks Sidhekin.
--
print map{chr}unpack(q{A3}x24,q{074117115116032097110111116104101114032080101114108032104097099107101114})

In reply to How to test exit? by andreas1234567

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