/**
* @covers BagOStuff::changeTTL
*/
public function testChangeTTL()
{
$key = wfMemcKey('test');
$value = 'meow';
$this->cache->add($key, $value);
$this->assertTrue($this->cache->changeTTL($key, 5));
$this->assertEquals($this->cache->get($key), $value);
$this->cache->delete($key);
$this->assertFalse($this->cache->changeTTL($key, 5));
}