CacheTest::xtestXcacheDecr PHP Method

    public function xtestXcacheDecr()
    {
        $ready = $this->_prepareXcache();
        if (!$ready) {
            return false;
        }
        $frontCache = new Phalcon\Cache\Frontend\Output(array('lifetime' => 20));
        $cache = new Phalcon\Cache\Backend\Xcache($frontCache);
        $cache->delete('foo');
        $cache->save('foo', 20);
        $newValue = $cache->decrement('foo');
        $this->assertEquals('19', $newValue);
        $newValue = $cache->decrement('foo');
        $this->assertEquals('18', $newValue);
        $newValue = $cache->decrement('foo', 4);
        $this->assertEquals('14', $newValue);
    }