CacheTest::testMongoDecrement PHP Method

    public function testMongoDecrement()
    {
        list($ready, $collection) = $this->_prepareMongo();
        if (!$ready) {
            return false;
        }
        $frontCache = new Phalcon\Cache\Frontend\Data(array('lifetime' => 200));
        $cache = new Phalcon\Cache\Backend\Mongo($frontCache, array('mongo' => $ready, 'db' => 'phalcon_test', 'collection' => 'caches'));
        $cache->delete('foo');
        $cache->save('foo', 100);
        $this->assertEquals(99, $cache->decrement('foo'));
        $this->assertEquals(89, $cache->decrement('foo', 10));
        $this->assertEquals(89, $cache->get('foo'));
        $this->assertEquals(1, $cache->decrement('foo', 88));
    }