Now that depends on the code in "test2.pm" which you have not shown up. If you're using Exporter, conventionally a statement such as

use test2 ();
[download]

does not export anything into the callee's namespace. You should be doing something weird and then getting weird behavior back. Take a look at the code written by ikegami at Re: Use, Exporter, I'm Dizzy. to see how the exporting code of your module should look like.