How do I put new List {1} in an NUNIT TestCase?

Question

I have the method:

public static int Add(List numbers)
    {
        if (numbers == null || numbers.Count == 0)
            return 0;

        if          


        

Answer 1

You can use this :

[TestCase(new []{1,2,3})]
public void Add_WithOneNumber_ReturnsNumber(int[] numbers)