Test code refactoring

[monsieurp]

Hi Naveed

I'm partaking in the CPAN Pull Request Challenge and this is my pull request for January. Basically these two commits:

• tidy up a bit your imports
• make use of the Test::Requires module instead of calling on eval/$@

Let me know if you need further explanations.

Cheers!

[ironcamel]

thanks :)