public function testFilterTree()
{
$client = static::createClient();
$crawler = $client->request('GET', '/unittest/de/EUR/list');
$this->assertEquals(1, $crawler->filter('.catalog-filter-tree')->count());
$link = $crawler->filter('.catalog-filter-tree a.cat-item')->link();
$crawler = $client->click($link);
$link = $crawler->filter('.catalog-filter-tree .categories a.cat-item')->link();
$crawler = $client->click($link);
$link = $crawler->filter('.catalog-filter-tree .coffee a.cat-item')->link();
$crawler = $client->click($link);
$this->assertEquals(3, $crawler->filter('.catalog-stage-breadcrumb li')->count());
$this->assertEquals(1, $crawler->filter('.catalog-list-promo .product a:contains("Cafe Noire Expresso")')->count());
}