gistfile1.cs

using System;
using System.Collections.Generic;

using Xunit;
using Shouldly;

namespace ConsoleApplication1
{
  public enum Decision
  {
    Simple,
    SomeOther
  }

  public class Convertinator
  {
    private Dictionary<Decision, Func<string, string>> Converters
    {
      get
      {
        return new Dictionary<Decision, Func<string, string>>
          {
            { Decision.Simple, (s) => { return s; } },
            { Decision.SomeOther, (s) => { return s.ToUpper(); } }
          };
      }
    }

    public string Convert(Decision decision, string theString)
    {
      return Converters[decision](theString);
    }
  }

  public class when_convertinating_strings
  {
    private Convertinator sut = new Convertinator();

    [Fact]
    public void Simple_decisions_dont_do_a_thing()
    {
      sut.Convert(Decision.Simple, "test").ShouldBe("test", Case.Sensitive);
    }

    [Fact]
    public void SomeOther_decisions_capitalize_the_heck_out_of_this_shit()
    {
      sut.Convert(Decision.SomeOther, "test").ShouldBe("TEST", Case.Sensitive);
    }

  }

  public class Program
  {
    static void Main(string[] args)
    {
      var aConvertinator = new Convertinator();
      var result = aConvertinator.Convert(Decision.SomeOther, "come at me, bro");
      Console.WriteLine(result);
    }
  }
}