public void MixedANDAndORInOn()
        {
            ProductCollection collection = new ProductCollection();
            collection.es.Connection.ConnectionString =
                UnitTestBase.GetFktString(collection.es.Connection);

            int empId = 1;

            ProductQuery prd = new ProductQuery("pq");
            OrderItemQuery item = new OrderItemQuery("oiq");
            OrderQuery ord = new OrderQuery("oq");
            CustomerQuery cust = new CustomerQuery("cq");
            EmployeeQuery emp = new EmployeeQuery("eq");

            prd.Select(prd.ProductID);
            prd.InnerJoin(item).On(prd.ProductID == item.ProductID);
            prd.InnerJoin(ord).On(item.OrderID == ord.OrderID);
            prd.InnerJoin(cust).On(ord.CustID == cust.CustomerID &
                (ord.CustSub == cust.CustomerSub |
                ord.EmployeeID == cust.StaffAssigned));
            prd.InnerJoin(emp).On(cust.Manager == emp.EmployeeID);
            prd.Where(emp.EmployeeID == empId);
            prd.Where(prd.Discontinued == false);
            prd.OrderBy(prd.ProductID.Ascending);

            Assert.IsTrue(collection.Load(prd));
            Assert.AreEqual(9, collection.Count);
        }