public void CanBuyArmor()
        {
            modelmock.Object.Hero.MaxArmor = 4;
            modelmock.Object.Hero.Armor    = 2;

            // Arrange
            int expectedheroarmor = modelmock.Object.Hero.Armor + 1;
            int expectedherocash  = modelmock.Object.Hero.Cash - modelmock.Object.ArmorPrice;

            // ACT
            gameLogic.BuyArmor();

            // ASSERT
            Assert.That(modelmock.Object.Hero.Armor, Is.EqualTo(expectedheroarmor));
            Assert.That(modelmock.Object.Hero.Cash, Is.EqualTo(expectedherocash));
        }