public void MathMethodInt()
        {
            MathMethod mathMethod = new MathMethod();

            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.NULL, 1, 2) == 0, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.ADD, 1, 2) == 3, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.MINUS, 4, 2) == 2, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.MULTIPLY, 4, 2) == 8, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.DEVIDE, 2, 2) == 1, "It is true");
        }
        public void MathMethodDouble()
        {
            MathMethod mathMethod = new MathMethod();

            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.NULL, 1.0, 2.0) == 0, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.ADD, 1.0, 2.0) == 3.0, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.MINUS, 4.0, 2.0) == 2.0, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.MULTIPLY, 4.0, 2.0) == 8.0, "It is true");
            Assert.IsTrue(mathMethod.Opr(MathMethod.ENUM_OPR.DEVIDE, 2.0, 2.0) == 1.0, "It is true");
        }