public void AddEventArtist_ExistingTest()
{
Event myEvent = Event.NewEvent();
myEvent.EventID = -1;
Artist artist = Artist.NewArtist();
artist.ArtistID = -1;
Instrument instrument = Instrument.NewInstrument();
instrument.InstrumentID = -1;
EventArtist eventArtist = EventArtist.NewEventArtist();
eventArtist.EventArtistID = -1;
eventArtist.Artist = artist;
eventArtist.Event = myEvent;
eventArtist.Instrument = instrument;
myEvent.EventArtists.Add(eventArtist);
Assert.IsTrue(myEvent.EventArtists.Count == 1);
myEvent.AddEventArtist(artist, instrument);
Assert.IsTrue(myEvent.EventArtists.Count == 1);
}
