code: public VideoCollection generate(final int videoCount) {
      List<Video> videos = new LinkedList<Video>();
      for (int i = 0; i < videoCount; i++) {
        Video video = generateRandomVideo();
        videos.add(video);
      }
      return new VideoCollection(videos);
    }
docs: Generate a VideoCollection with random data obtained form VIDEO_INFO map. You don't need o
  create your own AdapteeCollections. Review ListAdapteeCollection if needed.
  
  @param videoCount size of the collection.
  @return VideoCollection generated.