public void Multiplication_Success()
        {
            var service      = new MultiplicationService();
            var actualResult = service.Multiplication(5, 10);

            Assert.Equal(50, actualResult);
        }
        public void Multiplication_Theory(int param1, int param2, int expectedResult)
        {
            var service      = new MultiplicationService();
            var actualResult = service.Multiplication(param1, param2);

            Assert.Equal(expectedResult, actualResult);
        }