MySql.Data.Entity.Tests.AggregateOperators.SumWithPredicate C# (CSharp) Method

        public void SumWithPredicate()
        {
            MySqlCommand trueCmd = new MySqlCommand("SELECT SUM(Freight) FROM Orders WHERE storeId=2", conn);
            object freight = trueCmd.ExecuteScalar();

            using (testEntities context = new testEntities())
            {
                string sql = "SELECT VALUE SUM(o.Freight) FROM Orders AS o WHERE o.Store.Id = 2";
                ObjectQuery<Double> q = context.CreateQuery<Double>(sql);

                foreach (Double r in q)
                    Assert.AreEqual(freight, r);
            }
        }