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

    public function decrement(UnitTester $I)
    {
        $I->wantTo('Decrement counter by using Redis as cache backend');
        $key = '_PHCR' . 'decrement';
        $cache = new Redis(new Data(['lifetime' => 20]), ['host' => TEST_RS_HOST, 'port' => TEST_RS_PORT]);
        $I->dontSeeInRedis($key);
        $I->haveInRedis('string', $key, 100);
        $I->assertEquals(99, $cache->decrement('decrement'));
        $I->seeInRedis($key, 99);
        $I->assertEquals(97, $cache->decrement('decrement', 2));
        $I->seeInRedis($key, 97);
        $I->assertEquals(87, $cache->decrement('decrement', 10));
        $I->seeInRedis($key, 87);
    }