If you want to play it safe and check that a package contained in test_v1.pm isn't loaded by a use package; statement somewhere else, insert the following code at the top of the test_vN.pm files. This won't protect you against loading more than one test_vN.pm file, but if that does happen, and you have warnings enabled (which you always should, of course), you should see some "Subroutine redefined" warnings (Update: I hope that test_v1.pm and test_v2.pm defining at least a few of the same subs is a safe assumption).

use Module::Runtime qw/module_notional_filename/;
BEGIN {
    for my $package (qw/ Foo Foo::Bar /) {
        my $fn = module_notional_filename($package);
        die "$package already loaded from $INC{$fn}"
            if exists $INC{$fn};
        $INC{$fn} = __FILE__;
    }
}

[download]

In reply to Re: Multiple Packages in a Module? by haukex
in thread Multiple Packages in a Module? by Anonymous Monk

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.