I tried that under v5.8.0 Linux and it appeared to work fine. So the question is, what version of perl are you running? and what's your test data, the internal format.

also use strict; use warnings; they are your friends

You can also write that whole foreach loop much simpler something like this

foreach my $test (keys %Tests) {
    print "Test is $test\n";
    # This should print them all sorted
    print join("\n", sort @{$Tests{$test}});

    # For checking the data, shouldn't be needed in production
    #print "Num before sort:", $#{$Tests{$test}} + 1, "\n";
    #print join("\n", @{$Tests{$test}});

    #@{$Tests{$test} = sort @{$Tests{$test}};
    #print "Num after sort:", $#{$Tests{$test}} + 1, "\n";
    #print join("\n", @{$Tests{$test}});
}

[download]

Update: I used the same initial value for %Tests as edoc does below. (forgot to mention that)

In reply to Re: print dropping a line? by tedrek
in thread print dropping a line? 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.