Bearer JWT Login for Laravel HTTP Testing

WithAuth.php

<?php

namespace Tests\Feature;

use App\User;
use Tymon\JWTAuth\Facades\JWTAuth;

/**
 * Trait WithAuth
 *
 * @package Tests\Feature
 * @author  Guilherme Pressutto <gpressutto5@gmail.com>
 */
trait WithAuth
{
    /**
     * The logged in user.
     *
     * @var User
     */
    protected $user;

    /**
     * The JWT token for the logged in user.
     *
     * @var string
     */
    protected $token;

    /**
     * Logs in with the given user or with a new one.
     *
     * @param User|null $user
     *
     * @return void
     */
    protected function logIn(User $user = null)
    {
        $this->user  = $user ?: factory(User::class)->create();
        $this->token = JWTAuth::fromUser($this->user);
        $this->withHeaders([
            'Authorization' => "Bearer {$this->token}",
        ]);
    }
}