public void Verify_TVFs_returning_scalar_values_work()
        {
            using(var context = new NorthwindEntities())
            {
                var customerLocations = context.fx_CustomerLocationForCountry("Portugal").ToList();

                Assert.Equal(2, customerLocations.Count);
                Assert.Contains("POINT (-9.19968872070313 38.7638671875)", customerLocations.Select(s => s.AsText()));
                Assert.Contains( "POINT (-9.13509541581515 38.7153290459515)", customerLocations.Select(s => s.AsText()));
            }
        }