long feedId = feed.getId();
INews news = feed.getNews().get(0);
feed.removeNews(news);
MergeResult mergeResult = new MergeResult();
mergeResult.addRemovedObject(news);
mergeResult.addUpdatedObject(feed);
TestUtils.saveFeed(mergeResult);
feed = null;
news0 = null;
news1 = null;
mergeResult = null;