public void ConvertToMp4_GoodUrlWithStartTime_ReturnsFileInfoOfDownloadedVideo() { var downloadedVideo = new Youtube_Dl(string.Empty).DownloadVideo(new Uri($"https://www.youtube.com/watch?v=uq5MtA33OHk"), "test").Result; var times = Tuple.Create <string, string>("00:00:05", null); var ffmpeg = new FFMpeg(string.Empty).ConvertToMp4(downloadedVideo, times).Result; if (downloadedVideo.Exists) { downloadedVideo.Delete(); } if (ffmpeg.Exists) { ffmpeg.Delete(); } Assert.NotNull(ffmpeg); }