public void ConstTestGetACharDoesntHaveAValue()
        {
            Constant consta      = new Constant();
            string   constResult = consta.ConstantGetFunction('e');

            Assert.IsNull(constResult);
        }
        public void ConstTestGetAnExistingValueIsNotNull()
        {
            Constant consta       = new Constant();
            string   constResult  = consta.ConstantSetFunction('b', 8);
            string   constResult2 = consta.ConstantGetFunction('b');

            Assert.IsNotNull(constResult2);
        }
        public void ConstTestTypeOfOutputValue()
        {
            Constant consta = new Constant();

            consta.ConstantSetFunction('d', 4);
            string constResult = consta.ConstantGetFunction('d');

            Assert.AreEqual(typeof(string), constResult.GetType());
        }
        public void ConstTestGetAnExistingValue()
        {
            Constant consta = new Constant();

            consta.ConstantSetFunction('c', 9);
            string constResult = consta.ConstantGetFunction('c');

            Assert.AreEqual("9", constResult);
        }