public void Sub02()
        {
            MyMath txt = new MyMath();

            Assert.IsFalse(txt.Sub(14, 7) == 6);
        }
        public void Sub03()
        {
            MyMath txt = new MyMath();

            Assert.AreNotEqual(txt.Sub(14, 7), 6);
        }
        public void Sub01()
        {
            MyMath txt = new MyMath();

            Assert.AreEqual(txt.Sub(14, 7), 7);
        }