public function testIndexAction()
{
$url = $this->generateUrl('admin.layout_box.index');
$crawler = $this->client->request('GET', $url);
$this->assertTrue($this->client->getResponse()->isSuccessful());
$this->assertEquals(1, $crawler->filter('html:contains("' . $this->trans('layout_box.heading.index') . '")')->count());
$this->assertEquals(1, $crawler->filter('html:contains("' . $this->jsDataGridClass . '")')->count());
$this->assertEquals(0, $crawler->filter('html:contains("' . $this->jsFormClass . '")')->count());
}