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Test::Exception::LessClever(3) User Contributed Perl Documentation Test::Exception::LessClever(3)


Test::Exception::LessClever - (DEPRECATED) Test::Exception simplified


*** This module is deprecated: please do not use it! ***

An alternative to Test::Exception that is much simpler. This alternative does not use fancy stack tricks to hide itself. The idea here is to keep it simple. This also solves the Test::Exception bug where some dies will be hidden when a DESTROY method calls eval. If a DESTROY method masks $@ a warning will be generated as well.


Here is an IRC log.

    <Exodist> wtf? Bizarre copy of HASH in sassign at /usr/lib64/perl5/5.10.1/Carp/ line 104
    <Exodist> hmm, it doesn't happen when I step through the debugger, that sure is helpful yessir
    <Exodist> hmm, throws_ok or dies_ok { stuff that croaks in a package used by the one being tested }, at least in this case causes that error. If I change it to eval {}; ok( $@ ); like( $@, qr// ); it works fine
    <Exodist> Ah-Ha,   earlier when I mentioned I stopped using throws_ok because of something I could not remember, this was it, I stumbled on it again!
    <confound> probably because throws_ok tries to do clever things to fiddle with the call stack to make it appear as though its guts are not being called
    <confound> less clever would be more useful


Pretty much a clone of Test::Exception Refer to those docs for more details.

    use Test::More;
    use Test::Exception;
    dies_ok { die( 'xxx' )} "Should die";
    lives_ok { 1 } "Should live";
    throws_ok { die( 'xxx' )} qr/xxx/, "Throws 'xxx'";
    lives_and { ok( 1, "We did not die" )} "Ooops we died";


$status = live_or_die( sub { ... }, $name )
($status, $msg) = live_or_die( sub { ... }, $name )
Check if the code lives or dies. In scalar context returns true or false. In array context returns the same true or false with the error message. If the return is true the error message will be something along the lines of 'did not die' but this may change in the future.

Will generate a warning if the test dies, $@ is empty AND called in array context. This usually occurs when an objects DESTROY method calls eval and masks $@.


Test passes if the sub does not die, false if it does.
Test passes if the sub dies, false if it does not.
Check that the sub dies, and that it throws an error that matches the regex.

Test fails is the sub does not die, or if the message does not match the regex.

Fails with $name if the sub dies, otherwise is passive. This is useful for running a test that could die. If it dies there is a failure, if it lives it is responsible for itself.


  • Test::Fatal
  • Test::Exception


Chad Granum


Copyright (C) 2010 Chad Granum

Test-Exception-LessClever is free software; Standard perl licence.

Test-Exception-LessClever is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the license for more details.

2016-11-19 perl v5.38.2