using System;

using FluentAssertions;

​

public class Foo {

    public string val;

}

​

public class Program

{

    private Foo? foo;

    public static void Main()

    {

        var program = new Program();

        program.foo?.val.Should().NotBeNull(); // Check 1

        Console.WriteLine("FirstOnePassed");

        (program.foo?.val).Should().NotBeNull(); // Check 2

    }

}