Hack a Fact subclass into your current project to make specflow skip any tests with pending steps. Ultra dirty/unfinished

Xunit.cs

extern alias rxu; //alias the xunit dll to "rxu" - Real X Unit
using System;
using System.Collections.Generic;
using System.Linq;
using System.Xml;
using TechTalk.SpecFlow;

namespace Xunit
{
    public class FactAttribute:rxu.Xunit.FactAttribute
    {
        protected override IEnumerable<rxu::Xunit.Sdk.ITestCommand> EnumerateTestCommands(rxu::Xunit.Sdk.IMethodInfo method)
        {
            var testCommands = base.EnumerateTestCommands(method).Select(command => (rxu::Xunit.Sdk.ITestCommand) new MaybeSkipCommand(command, method));
            return testCommands;
        }
    }

    internal class MaybeSkipCommand : rxu::Xunit.Sdk.ITestCommand
    {
        readonly rxu::Xunit.Sdk.ITestCommand _inner;
        readonly rxu::Xunit.Sdk.IMethodInfo _method;

        public MaybeSkipCommand(rxu::Xunit.Sdk.ITestCommand inner, rxu::Xunit.Sdk.IMethodInfo method)
        {
            _inner = inner;
            _method = method;
        }

        public rxu::Xunit.Sdk.MethodResult Execute(object testClass)
        {
            try
            {
                return _inner.Execute(testClass);
            }
            catch (SpecFlowException e)
            {
                return new rxu::Xunit.Sdk.SkipResult(_method, DisplayName, e.Message);
            }
        }

        public XmlNode ToStartXml()
        {
            return _inner.ToStartXml();
        }

        public string DisplayName
        {
            get { return _inner.DisplayName; }
        }

        public bool ShouldCreateInstance
        {
            get { return _inner.ShouldCreateInstance; }
        }

        public int Timeout
        {
            get { return _inner.Timeout; }
        }
    }

    public class TraitAttribute : rxu.Xunit.TraitAttribute
    {
        public TraitAttribute(string name, string value) : base(name, value)
        {
        }
    }

    public interface IUseFixture<T> : rxu.Xunit.IUseFixture<T> where T : new()
    {
        
    }
}