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

    public function decrement(UnitTester $I)
    {
        $I->wantTo('Decrement counter by using Memory as cache backend');
        $key = 'decrement';
        $cache = new Memory(new Data(['lifetime' => 20]));
        $I->setProtectedProperty($cache, '_data', [$key => 100]);
        $I->assertEquals(99, $cache->decrement($key));
        $I->assertEquals(96, $cache->decrement($key, 3));
        $I->assertEquals(6, $cache->decrement($key, 90));
        $I->assertEquals([$key => 6], $I->getProtectedProperty($cache, '_data'));
    }