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);
        }