public void RollBetweenOneAndTwelve() { var dice = new MonopolyDice(); var rolls = new List<Int32>(); for (var i = 0; i < 1000000; i++) { dice.RollTwoDice(); rolls.Add(dice.Value); } var max = rolls.Max(); var min = rolls.Min(); Assert.IsTrue(min > 0); Assert.IsTrue(max <= 12); }