The first doesn't work 100% with all Laravel 4 application classes. Usually you need to add some dependency in the class to make it work, even if your project solves it all with the ComposerPSR-0 compliant autoloader.
The second, generates a really tiny test class. It doesn't maps all class public methods and let everything in place.
This generator loads the target with and use the PHP Reflection features for reverse engineer all public methods, and provide an enhanced skeleton, including calls for data providers.
Begin by installing this package through Composer. Edit your project's composer.json file to require davispeixoto/testingtool.