public void AddTwoStringsBadInput()
{
string input1 = "1";
string input2 = "kjwjrjkrjkerjk";
Addition operation_class = new Addition();
operation_class.AddStrings(input1,input2); // This is not an Assert
}
public void CanAddTwoStringsGoodInput()
{
string input1 = "2";
string input2 = "1";
int expected = 3;
Addition operation_class = new Addition();
Assert.AreEqual(expected, operation_class.AddStrings(input1, input2));
}