public function testGetLengthByScore()
{
$this->rediska->addToSortedSet('test', 1, 1);
$this->rediska->addToSortedSet('test', 2, 2);
$this->rediska->addToSortedSet('test', 3, 3);
$reply = $this->set->getLengthByScore(2, 3);
$this->assertEquals(2, $reply);
}