CreateFakeNancyModuleDerivedType.cs

private static FakeNancyModule GenerateNewFakeNancyModuleType()
{
    var typeName = String.Format("FakeNancyModule-" + Guid.NewGuid());
    var assemblyName = new AssemblyName("NancyDynamic");
    var assemblyBuilder = System.Threading.Thread.GetDomain().DefineDynamicAssembly(assemblyName, AssemblyBuilderAccess.Run);
    var module = assemblyBuilder.DefineDynamicModule("NancyDynamicModule");
    var builder = module.DefineType(typeName, TypeAttributes.Public, typeof(FakeNancyModule));
    return Activator.CreateInstance(builder.CreateType());
}