Laravel dusk authenticate custom user model

i'm trying to create a Page that extends "DuskTestCase" to avoid having to write login logic in every tests. However, when I run the tests, it fails to assert that after a login, the browser is at the home page. Here is one of the things that I tried. Note that Auth::check() returns false, and the problem surely comes from here and I can't figure why it does not authenticate the user as described in the docs: https://laravel.com/docs/5.6/dusk The ICOUser model also is implementing Illuminate\Contracts\Auth\Authenticatable contract.

LoginPage.php

namespace Tests\Browser\Pages;

use ARM\Tcollect\ICO\ICOUser;
use Laravel\Dusk\Browser;
use Illuminate\Support\Facades\Auth;

class LoginPage extends Page
{
const SUDOER_ID = 499;
/**
* Get the URL for the page.
*
* @return string
*/
public function url()
{
    return '/';
}

/**
* Abstract the Login functionality
*
* @param  \Laravel\Dusk\Browser  $browser
* @param  string  $name
* @return void
*/
public function loginSudoer(Browser $browser)
{
    $browser->loginAs(ICOUser::find(static::SUDOER_ID))- >visit('/home');
}
}

The failing method on my LoginTest.php is the following:

public function testLoginSudoer()
    {
        $this->browse(function (Browser $browser){
           $browser->on(new LoginPage)
                   ->loginSudoer()
                   ->waitForLocation('/home', 10)
                   ->assertPathIs('/home')
                   ->visit('/logout');
       });
    }