Laravel session expiration on Carbon::setTestNow()

I'm using Carbon::setTestNow() for testing purpose on laravel 4.2 project and all the time when I make next refresh after the method call where I used Carbon::setTestNow() system log me out. It happens because session cookie expiration date sets to Carbon::setTestNow() date. How can I override that because it's annoying to make login again all the time. Thanks, hope some one can help me to find some solution.

Just come to the same situation and here's the result:

The "official way" is to extend the Illuminate\Session\Middleware::addCookieToResponse or ::getCookieLifetime

But I find it's quite complicated and bloated. Come to a simple solution:

Check if the provided mock time is from the past, override the session.lifetime if needed, here's the codeblock I added into app/start/global.php

// Set mock time if requested
if ( ! empty($_GET['mocktime'])) {
    try {
        $real_time = \Carbon\Carbon::now();
        $mock_time = \Carbon\Carbon::parse($_GET['mocktime']);

        \Carbon\Carbon::setTestNow($mock_time);

        $diff_min = $real_time->diffInMinutes($mock_time);
        if ($diff_min > 0) {
            // requested mock time is from the pass
            $org_lifetime = Config::get('session.lifetime');
            Config::set('session.lifetime', $diff_min + $org_lifetime);
        }

    } catch (Exception $ex){
        Log::warning('Mocktime requested but unable to set: '.$ex->getMessage());
    }
}

As this answer is coming late, hope it can help someone later.