Issue424Tests.cs

using System;
using System.Collections.Generic;
using Xunit;

namespace CommandLine.Tests.Unit
{

    //MailAndSmsWarningSenderTests
    public class Issue424Tests
    {
        private MailAndSmsWarningSender _sut;

        public Issue424Tests()
        {
            _sut = new MailAndSmsWarningSender();
        }

        [Fact]
        public void SendSmsOnWarning()
        {
            //Arrange
            void Action() => _sut.ParseArgumentsAndRun(
                new[] { "--task", "MailAndSmsWarningSender", "--test", "hejtest" });
            // Act & Assert
            Assert.Throws<NotImplementedException>((Action)Action);
        }
    }

    public class MailAndSmsWarningSender
    {
        internal class Options
        {
            [Option("task")]
            public string Task { get; set; }
        }

        public void ParseArgumentsAndRun(string[] args)
        {
            Parser.Default.ParseArguments<Options>(args)
                .WithParsed(ExecuteTaskWithOptions)
                .WithNotParsed(HandleParseError);
        }

        private void HandleParseError(IEnumerable<Error> errs)
        {
            throw new NotImplementedException();
        }

        private void ExecuteTaskWithOptions(Options opts)
        {
            Console.WriteLine("Executing");
        }

    }
}