//switch version to check the result

//@nuget: CommandLineParser -Version 2.9.0-preview1

//nuget: CommandLineParser -Version 2.8.0

using System;

using System.Collections;

using System.Collections.Generic;

using System.Linq;

using CommandLine;

//using FluentAssertions;

//using Xunit;

​

namespace CommandLine.Tests

{

class Program

{

   public static void  Main()

   {

        new MultInstanceMoreTests().Sequence_with_similar_values_should_be_kept();

   }

}

    public class MultInstanceMoreTests

    {

       // [Fact]

      //  [Trait("category", "multi")]

        public void Sequence_with_similar_values_should_be_kept()

        {

            //var text = "--function-modeling None,Database,CodeModels -q a.litedb";

            var text = "x1 x2 x3 -c x1"; // x1 is th same in option and Value(0)        

            Console.WriteLine($"args= {text}");

            var args = text.Split();

            var parser = new Parser(with =>

            {

                with.HelpWriter = Console.Out;  

            });

            var result = parser.ParseArguments<Options>(args);

            var options= (result as Parsed<Options>).Value;

             options.Dump();

            //fail in xunit

           // options.Compress.Should().BeEquivalentTo(new[] { "x1" });

          //  options.InputDirs.Should().BeEquivalentTo(new[] { "x1","x2","x3" });

​

        }       

        public class Options

        {        

​

            [Option('c', "compress",

                HelpText = "Compress Match Pattern, Pipe Separated (|) ",

                Separator = '|',               

                Default = new[]

                {

            "*.txt", "*.log", "*.ini"

                })]

            public IEnumerable<string> Compress { get; set; }

​

            [Value(0,

                HelpText = "Input Directories.",               

                Required = true)]

            public IEnumerable<string> InputDirs { get; set; }

​

​

            [Option('n', "name",

                HelpText = "Metadata Name.",

                Default = "WILDCARD")]

            public string Name { get; set; }

        }

    }    

}

​

/*

v2.8.0  correct

args= x1 x2 x3 -c x1

Dumping object(CommandLine.Tests.Options)

 Compress   : [

             x1

]

 InputDirs  : [

             x1

             ,

             x2

             ,

             x3

]

 Name       : WILDCARD

 =================================

 v2.9.0-preview1  invalid

 args= x1 x2 x3 -c x1

Dumping object(CommandLine.Tests.Options)

 Compress   : [

             x1

]

 InputDirs  : [

             x2

             ,

             x3

]

 Name       : WILDCARD

*/

​