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POTesting Scripts in Distribution without Building
 

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    <p>I am trying to test a script that I'm including in my Perl distribution. The script only outputs to files, so my tests check file contents after running it. I tried following the directions in <a href="http://blogs.perl.org/users/neilb/2012/09/testing-scripts-in-your-distribution-portably.html" rel="nofollow">this</a> post, but it doesn't quite work for me. The script that I'm testing uses a module in the same distribution, so running the script requires the location of the module to be added to <code>@INC</code> somehow. I noticed that <a href="https://metacpan.org/module/Test%3a%3aScript" rel="nofollow">Test::Script</a> adds <code>-Mblib</code> to the arguments, so I tried the same. However, it wouldn't work during development because there was no blib directory. Using <code>-Mblib</code> makes everything work only under <code>dzil test</code> or <code>make test</code>. While developing, I use either <code>prove</code> or simply <code>perl -Ilib t/test_script.pl</code>, and trying to use <code>-Mblib</code> results in failed tests and the warning <code>Cannot find blib even in C:\</code>. Considering this, I have a few lines of code that are missing one crucial piece:</p> <pre><code>my $script_path = catfile( $FindBin::Bin, updir(), qw(scripts my_script.pl) ); my $include = $HAS_BLIB &amp;&amp; '-Mblib' || '-I"' . catdir($FindBin::Bin, updir(), 'lib') . '"'; my $args = join ' ', map {qq["$_"]} @input_args; my $command = qq{"$^X" $include "$script_path" $args}; `$command`; #test that script worked here... </code></pre> <p>What do I put instead of the scalar <code>$HAS_BLIB</code>? I need a way to tell if I'm in the middle of building the distribution or not. Other input is welcome. Maybe there's a better way for me to go about doing this? I'd just like a way to test the script that passes with both <code>prove</code> and <code>make test</code>.</p>
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    1. COI haven't checked yet, but I think I found the answer in Module::Pluggable::Object. If `exists $INC{"blib.pm"}`, then we're in a build/test environment.
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