public Feed GetFeed(int numberOfStreams, int activitiesPerStream) { var feedId = Encoding.UTF8.GetBytes("feedid"); var feed = feedFactory.GG(feedId); for (int i = 0; i < numberOfStreams; i++) { for (int j = 0; j < activitiesPerStream; j++) { var streamId = Guid.NewGuid(); var feedStream = new FeedStream(feedId, streamId.ToByteArray()); feed.AttachStream(feedStream); var externalId = $"extid-{i}-{j}"; var body = new ActivityBody() { Content = externalId }; var activity = Activity.UnitTestFactory(streamId.ToByteArray(), Encoding.UTF8.GetBytes(externalId), body, "author", DateTime.UtcNow.AddYears(i)); activityRepository.Append(activity); } } return feed; }