PlanetManager mgr = PlanetFactory.getPlanet().getPlanetManager();
Subscription sub = mgr.getSubscriptionById(testSub.getId());
// update the subscription
FeedUpdater updater = new SingleThreadedFeedUpdater();
updater.updateSubscription(sub);
TestUtils.endSession(true);
// verify the results
sub = mgr.getSubscription(feed_url);
assertNotNull(sub);