public function removeByRank() { $this->rediska->addToSortedSet('test', 123, 1); $this->rediska->addToSortedSet('test', 456, 2); $this->rediska->addToSortedSet('test', 789, 3); $count = $this->set->removeByRank(0, 1); $this->assertEquals(2, $count); $values = $this->rediska->getSortedSet('test'); $this->assertEquals(789, $values[0]); }