gistfile1.php

<?php

use Silex\WebTestCase;

class FormTest extends WebTestCase
{
    public function createApplication()
    {
        return require __DIR__.'/../../app.php';
    }

    public function testSubmitRedirects()
    {
        $client = $this->createClient();

        $client->request('POST', '/update/', array(
            'key' => 'value'
        ));

        $response = $client->getResponse();

        $this->assertTrue($response->isRedirect());
    }
}