PHPUnit testing for Craft plugins or controllers Is it possible to implement PHPUnit into Craft CMS? If so, where can I find a good explanation or tutorial? I already tried a Github link for a plugin (testing the plugin).

But I am new to both but really want to TDD the plugins. Any example pages or a quick guide would be great!
There is a good example of testing with PHPUnit in a Craft plugin here: https://github.com/selvinortiz/craft.loath and an example on how to stub out the global craft() class here: Stub out the global craft() object for PHPUnit tests

Note that testing in Craft should be a lot easier/convenient in the upcoming Craft 3.