Testing Code Modules

Each module needs it's own namespace defined:

Code:

'Modules\TestModule' => APPPATH.'../modules/Testmodule'

In this mode it's work only with other function. Not with index function. 
In the module/testmodule/config/routes.php i have:

Code:

$routes->group('testmodule', ['namespace' => 'Modules\Testmodule\Controllers'], function($routes)
{
   $routes->add('/', 'Testcont::index');
   $routes->add('(:any)', 'Testcont::$1');
});

it's corrcet? Should be correct the index routing....

Another question:
In this way, all the module must be declared in autoload file.
is it possible to declare only the modules folder and have all the module/config/routes.php files self-autoload?