public function test_BRPop()
{
$this->assertEquals('brpop key1 50', $this->redis->brpop('key1', 50));
$this->assertEquals('brpop key1 key2 50', $this->redis->brpop('key1', 'key2', 50));
$this->assertEquals('brpop key1 key2 key3 50', $this->redis->brpop(array('key1', 'key2', 'key3'), 50));
}