using System;

using Xunit;

​

public class Program

{

    public static void Main()

    {

        string input = "Hello Jude";

        //Console.WriteLine(Say(input));

        Program.Test(input, input);

    }

​

    public static string Say(string input)

    {

        return input;

    }

    [Theory]

    [InlineData("a","a")]

    public static void Test(string input, string expected){

        // arrange

        // act

        var output = Program.Say(input);

        // assert

        Assert.Equal(expected, output);

    }

}