NAME¶

Test::Without::Module - Test fallback behaviour in absence of modules

SYNOPSIS¶

  use Test::Without::Module qw( My::Module );
  # Now, loading of My::Module fails :
  eval { require My::Module; };
  warn $@ if $@;
  # Now it works again
  eval q{ no Test::Without::Module qw( My::Module ) };
  eval { require My::Module; };
  print "Found My::Module" unless $@;

DESCRIPTION¶

This module allows you to deliberately hide modules from a program even though they are installed. This is mostly useful for testing modules that have a fallback when a certain dependency module is not installed.

ONE LINER¶

A neat trick for using this module from the command line was mentioned to me by NUFFIN and by Jerrad Pierce:

  perl -MTest::Without::Module=Some::Module -w -Iblib/lib t/SomeModule.t

That way, you can easily see how your module or test file behaves when a certain module is unavailable.

BUGS¶

•

There is no lexical scoping

CREDITS¶

Much improvement must be thanked to Aristotle from PerlMonks, he pointed me to a much less convoluted way to fake a module at <http://www.perlmonks.org/index.pl?node=192635>.

I also discussed with him an even more elegant way of overriding CORE::GLOBAL::require, but the parsing of the overridden subroutine didn't work out the way I wanted it - CORE::require didn't recognize barewords as such anymore.

NUFFIN and Jerrad Pierce pointed out the convenient use from the command line to interactively watch the behaviour of the test suite and module in absence of a module.

AUTHOR¶

Copyright (c) 2003-2009 Max Maischein, <corion@cpan.org>

LICENSE¶

This module is released under the same terms as Perl itself.

SEE ALSO¶

Devel::Hide, Acme::Intraweb, PAR, perlfunc