Data-driven tests with NUnit and XUnit when you have a Specification base class

gistfile1.cs

    public abstract class Specification
    {
        [Test]
        public virtual void Run()
        {
            this.BDDfy();
        }

        [Fact]
        public void RunX()
        {
            this.BDDfy();
        }
    }

    public class NormalSpec : Specification
    {
        public void GivenX()
        {
            
        }

        public void WhenY()
        {
            
        }

        public void ThenZ()
        {
        }
    }

    public class DataDrivenSpec : Specification
    {
        private int _x;
        [Ignore]
        public override void Run() {}
        public new void RunX() {}

        public void GivenX()
        {

        }

        public void WhenY()
        {
            Console.WriteLine(_x);
        }

        public void ThenZ()
        {
        }

        [Test]
        [TestCase(1)]
        [TestCase(2)]
        public void RunSpec(int x)
        {
            _x = x;
            base.Run();
        }

        [Xunit.Extensions.Theory]
        [InlineData(1)]
        [InlineData(2)]
        public void RunSpecX(int x)
        {
            _x = x;
            base.RunX();
        }
    }

This is very handy. Thanks for sharing.