public void TestEqualsTo()
        {
            Dollar five = new Dollar(5);
            Dollar anotherFive = new Dollar(5);

            Assert.AreEqual(true, five.EqualsTo(anotherFive));
        }
        public void TestEqualsToBetweenDollarAndFranc()
        {
            Dollar fiveDollar = new Dollar(5);
            Franc tenFranc = new Franc(10);

            Assert.AreEqual(true, fiveDollar.EqualsTo(tenFranc));
        }