rucker has it right. You are pulling up the wrong Test.pm. For future reference the easiest way to discover this is to put a print statement in your Test.pm and see that it isn't triggered. Second easiest is:

perldoc -m Test
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which will show you the text of what it is picking up as Test. If that doesn't look familiar, you picked up the wrong module.

Next on the list you can try:

perl -e 'use Test; print $INC{"Test.pm"};'
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which will tell you where you picked up that module from. And finally if you really want it to take your module you can use lib. But I don't recommend doing that, if you don't have good reason, just stay away from the names of core modules.

UPDATE
Oops, Converter pointed out that $INC{Test} is not what you want. It is $INC{"Test.pm"}. You need to convert from a fully qualified package name, that means turn :: into / and add .pm at the end. My bad.