Dependency Injection in Laravel

<?php

// opción 1
class MyController extends Controller {
    protected $dep;
    public function __construct(Dependency $dep) {
        parent::__construct();
        $this->dep = $dep;
    }

    public function doStuff() {
        $this->dep->blah();
    }
}

// opción 2
class MyController extends Controller {
    public function doStuff() {
        $dep = App::make('Dependency');
        $dep->blah();
    }
}

// test
class MyControllerTest extends TestCase {
    public function testBlah() {
        $dep = Mockery::mock('Dependency');
        $this->app->instance('Dependency', $dep);

        // ...
    }
}