public void ScoreboardShouldDisplayScoresWhenThereAreAny()
{
var mockSerializer = new Mock<IScoreSerializer>();
mockSerializer.Setup(s => s.Load()).Returns(this.scores);
mockSerializer.Setup(s => s.Save(It.IsAny<IList<Score>>()));
serializer = mockSerializer.Object;
var mockNotifier = new Mock<IScoreNotifier>();
mockNotifier.Setup(n => n.Notify(It.IsAny<string>())).Verifiable();
mockNotifier.Setup(n => n.DisplayScores(It.IsAny<IList<Score>>()));
this.notifier = mockNotifier.Object;
var scoreBoard = new Scoreboard(notifier, serializer, actionsReader);
scoreBoard.DisplayTopScores();
mockNotifier.Verify(n => n.DisplayScores(It.IsAny<IList<Score>>()), Times.Once);
}