public void AddTest()
{
MathsHelper helper = new MathsHelper();
int result = helper.Add(20, 10);
Assert.AreEqual(30, result);
}
static void Main(string[] args)
{
Console.WriteLine("Enter two numbers\n");
int number1;
int number2;
number1 = int.Parse(Console.ReadLine());
number2 = int.Parse(Console.ReadLine());
MathsHelper helper = new MathsHelper();
int x = helper.Add(number1, number2);
Console.WriteLine("\nThe sum of " + number1 +
" and " + number2 + " is " + x);
Console.ReadKey();
int y = helper.Subtract(number1, number2);
Console.WriteLine("\nThe difference between " +
number1 + " and" + number2 + " is " + y);
Console.ReadKey();
}