public function testSetMicrotimeReturnsSilentlyIfCASFailed()
{
// acquire cas token
$this->storage->getMicrotime();
// invalidate the cas token
$storage2 = new MemcachedStorage("test", $this->memcached);
$storage2->getMicrotime();
$storage2->setMicrotime(234);
$this->storage->setMicrotime(123);
}