Test

module.cs

    public class DummyAuthModule : IHttpModule
    {
        public void Init(HttpApplication context)
        {
            context.AuthenticateRequest += ContextOnAuthenticateRequest;
        }

        private void ContextOnAuthenticateRequest(object sender, EventArgs eventArgs)
        {
            var identity = new GenericIdentity("test user");
            SetPrincipal(new GenericPrincipal(identity, null));
        }

        private static void SetPrincipal(IPrincipal principal)
        {
            Thread.CurrentPrincipal = principal;
            if (HttpContext.Current != null)
            {
                HttpContext.Current.User = principal;
            }
        }

        public void Dispose()
        {
        }
    }