Add a test to ensure AuthorityController can access to parent using method with 'get' prefix or without it.

For example:

    $controller->category();

Or

    $controller->getCategory();
is_method_callable() helper can now check if a mocked static method exists or not.

You need to do :
$category = Mockery::mock('alias:Category',
['getProducts'=>'products']);
App::instance('Category', $category);

is_method_callable('Category', 'getProducts');//-> true