public void DoStuff()
{
var c = new ThirdPartyYoutube();
c.GetVideoInfo(100);
c.GetVideoInfo(100);
c.DownloadVideo(100);
c.DownloadVideo(100);
c.ListVideos();
CollectionAssert.AreEqual(new[] {
"Get video 100",
"Get video 100", // nackdel: inget cache'as
"Download video 100",
"Download video 100", // nackdel: inget cache'as
"List all videos"
}, c.Events.ToArray());
// Fördel: ingen extra kod
}
public Video GetVideoInfo(int id)
{
if (_cached.ContainsKey(id))
{
_events.Enqueue($"Get video {id} from cache");
return(_cached[id]);
}
var video = _thirdPartyYoutube.GetVideoInfo(id);
_cached.Add(id, video);
_events.Enqueue($"Get video {id}");
return(video);
}