AdderKata.CalculatorTests.It_Does_Not_Accept_Negative_Numbers C# (CSharp) Method

        public void It_Does_Not_Accept_Negative_Numbers()
        {
            //--Arrange
            var calculator = new Calculator();
            var input = "8,-5";

            //--Act/Assert
            Assert.Throws<ArgumentException>(() => calculator.Add(input));
        }