public function testStandardCoupon()
{
$client = static::createClient();
$crawler = $client->request('GET', '/unittest/de/EUR/list');
$link = $crawler->filter('.catalog-list-items .product a:contains("Unittest: Bundle")')->link();
$crawler = $client->click($link);
$form = $crawler->filter('.catalog-detail .addbasket .btn-action')->form();
$crawler = $client->submit($form);
$form = $crawler->filter('.basket-standard-coupon .coupon-new button')->form();
$form['b_coupon'] = '90AB';
$crawler = $client->submit($form);
$this->assertEquals(1, $crawler->filter('.basket-standard .product:contains("Geldwerter Nachlass")')->count());
$link = $crawler->filter('.basket-standard-coupon .change')->link();
$crawler = $client->click($link);
$this->assertEquals(1, $crawler->filter('.basket-standard .product')->count());
}