public function decrement(UnitTester $I)
{
$I->wantTo('Decrement counter by using Memcache as cache backend');
$key = 'decrement';
$cache = new Memcache(new Data(['lifetime' => 20]), ['host' => TEST_MC_HOST, 'port' => TEST_MC_PORT]);
$I->dontSeeInMemcached($key);
$I->haveInMemcached($key, 100);
$I->assertEquals(99, $cache->decrement($key));
$I->seeInMemcached($key, 99);
$I->assertEquals(97, $cache->decrement($key, 2));
$I->seeInMemcached($key, 97);
$I->assertEquals(87, $cache->decrement($key, 10));
$I->seeInMemcached($key, 87);
$I->clearMemcache();
}
