public void NumberOfPlayers_GetsCorrectNumber() { List <IPlayer> pList = new List <IPlayer>(); for (int i = 0; i < 2; ++i) { Mock <IPlayer> moq = new Mock <IPlayer>(); moq.Setup(p => p.Id).Returns(i); pList.Add(moq.Object); } IBracket b = new SingleElimBracket(pList); Assert.AreEqual(2, b.NumberOfPlayers()); }