public void TestMethodException()
        {
            //arrange
            GetSetClass class1 = new GetSetClass();
            int         a      = -2;
            int         b      = 3;

            //act assert
            double actual = class1.GetSquare(a, b);

            Assert.ThrowsException <System.ArgumentOutOfRangeException>(() => class1.A = a);
        }
        public void TestMethod1()
        {
            //arrange
            GetSetClass class1   = new GetSetClass();
            int         a        = -2;
            int         b        = 3;
            double      expected = 6;
            //act
            double actual = class1.GetSquare(a, b);

            //assert
            Assert.AreEqual(expected, actual, 0.01, "incorrect data");
        }