Phalcon\Test\Unit\Cache\Backend\RedisCest::queryKeys PHP Method

    public function queryKeys(UnitTester $I)
    {
        $I->wantTo('Get cache keys by using Redis as cache backend');
        $cache = new Redis(new Data(['lifetime' => 20]), ['host' => TEST_RS_HOST, 'port' => TEST_RS_PORT, 'statsKey' => '_PHCR']);
        $I->haveInRedis('string', '_PHCR' . 'a', 1);
        $I->haveInRedis('string', '_PHCR' . 'b', 2);
        $I->haveInRedis('string', '_PHCR' . 'c', 3);
        $I->haveInRedis('set', '_PHCR', 'a');
        $I->haveInRedis('set', '_PHCR', 'b');
        $I->haveInRedis('set', '_PHCR', 'c');
        $keys = $cache->queryKeys();
        sort($keys);
        $I->assertEquals($keys, ['a', 'b', 'c']);
    }