Fix tests

video_info_test.go

@@ -50,8 +50,6 @@ func TestVideoInfo(t *testing.T) {
 			uploader:    "AdeleVEVO",
 			duration:    time.Second * 367,
 			published:   newDate(2015, 10, 22),
-			artist:      "Adele",
-			song:        "Hello",
 			description: "‘Hello' is taken from the new album, 25, out November 20. http://adele.com\nAvailable now from iTunes http://smarturl.it/itunes25 \nAvailable now from Amazon http://smarturl.it/25amazon \nAvailable now from Google Play http://smarturl.it/25gplay\nAvailable now at Target (US Only): http://smarturl.it/target25\n\nDirected by Xavier Dolan, @XDolan\n\nFollow Adele on:\n\nFacebook - https://www.facebook.com/Adele\nTwitter - https://twitter.com/Adele \nInstagram - http://instagram.com/Adele\n\nhttp://vevo.ly/jzAuJ1\n\nCommissioner: Phil Lee\nProduction Company: Believe Media/Sons of Manual/Metafilms\nDirector: Xavier Dolan\nExecutive Producer: Jannie McInnes\nProducer: Nancy Grant/Xavier Dolan\nCinematographer:  André Turpin\nProduction design : Colombe Raby\nEditor: Xavier Dolan\nAdele's lover : Tristan Wilds",
 		},
 		{