Tests does not work when overriding a helper

Hi everybody!

I am starting to do my first tests in a website I am working on, and I would need some support from you guys! I've been struggling with prefixes and routing to implement a multilanguage site. My solution was:

1. Create a middleware called Multilanguage.php in app/Http/Middleware:

<?php

namespace App\Http\Middleware;

use Closure;
use Illuminate\Foundation\Application;
use Illuminate\Http\Request;
use Illuminate\Routing\Redirector;

class Multilanguage
{
    /**
     * Multilanguage constructor.
     *
     * @param Application $app
     * @param Redirector  $redirector
     * @param Request     $request
     */
    public function __construct(Application $app, Redirector $redirector, Request $request) {
        $this->app = $app;
        $this->redirector = $redirector;
        $this->request = $request;
    }

    /**
     * Handle an incoming request.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  \Closure  $next
     * @param  string|null  $guard
     * @return mixed
     */
    public function handle($request, Closure $next, $guard = null)
    {
        // Make sure current locale exists.
        $locale = $request->segment(1);

        if (in_array($locale, $this->app->config->get('app.skip_locales'))) {
            return $next($request);
        }

        if ( ! array_key_exists($locale, $this->app->config->get('app.locales'))) {
            $segments = $request->segments();
            $segments[0] = $this->app->config->get('app.fallback_locale');

            $newUrl = implode('/', $segments);
            if (!empty($_SERVER['QUERY_STRING'])) {
                $newUrl .= '?' . $_SERVER['QUERY_STRING'];
            }

            return $this->redirector->to($newUrl);
        }

        $this->app->setLocale($locale);

        return $next($request);
    }
}

2. Add the middleware in Kernel.php file:

    protected $middleware = [
        \App\Http\Middleware\Multilanguage::class,
        \Illuminate\Foundation\Http\Middleware\CheckForMaintenanceMode::class,
    ];

3. Edit the RouteServiceProvider.php in the folder app/Providers:

<?php

namespace App\Providers;

use Illuminate\Http\Request;
use Illuminate\Routing\Router;
use Illuminate\Foundation\Support\Providers\RouteServiceProvider as ServiceProvider;

class RouteServiceProvider extends ServiceProvider
{
    /**
     * This namespace is applied to the controller routes in your routes file.
     *
     * In addition, it is set as the URL generator's root namespace.
     *
     * @var string
     */
    protected $namespace = 'App\Http\Controllers';

    /**
     * Define your route model bindings, pattern filters, etc.
     *
     * @param  \Illuminate\Routing\Router  $router
     * @return void
     */
    public function boot(Router $router)
    {
        //

        parent::boot($router);
    }

    /**
     * Define the routes for the application.
     *
     * @param  \Illuminate\Routing\Router  $router
     * @return void
     */
    public function map(Router $router, Request $request)
    {
        $locale = $request->segment(1);
        $this->app->setLocale($locale);

        $router->group(['namespace' => $this->namespace, 'prefix' => '{lang}'], function ($router) {
            require app_path('Http/routes.php');
        });
    }
}

4. Then, I created a file called helpers.php in app/Http with this content:

<?php

if (!function_exists('route')) {
    /**
     * Generate a URL to a named route.
     *
     * @param  string                    $name
     * @param  array                     $parameters
     * @param  bool                      $absolute
     * @param  \Illuminate\Routing\Route $route
     * @return string
     */
    function route($name, $parameters = [], $absolute = true, $route = null)
    {
        if ( ! isset($parameters['lang'])) {
            $parameters['lang'] = App::getLocale();
        }

        return app('url')->route($name, $parameters, $absolute, $route);
    }
}

5. Then, I edited the file bootstrap/autoload.php, and added this line at the beginning:

require __DIR__.'/../app/Http/helpers.php';

This way, I can use route helper in my templates when I don't specify the current lang parameter all the time.

The thing is my site is working fine, but when I run phpunit with the default laravel's tests, it throws the message..

Caused by
Illuminate\Routing\Exceptions\UrlGenerationException: Missing required parameters for [Route: team.index] [URI: {lang}/team]. in /home/vagrant/vacationdays/vendor/laravel/framework/src/Illuminate/Routing/Exceptions/UrlGenerationException.php:17

I suspect that phpunit is not loading the autoloader the same way that laravel does. Do you have any idea?

Thank you very much!!