public function testRedisController()
{
$redis = $this->container->get('snc_redis.default');
$redis->flushdb();
$this->assertCount(0, $redis->keys('*'));
$client = static::createClient();
$client->request('GET', '/blog/top-5-popular-posts');
$this->assertEquals(Response::HTTP_OK, $client->getResponse()->getStatusCode());
$this->assertCount(11, $redis->keys('*'));
$redis->flushdb();
$this->assertCount(0, $redis->keys('*'));
}