[TestMethod, Benchmark]
public void Inventory_GetInv_Ok()
{
    //ARRANGE
    var items = new List<ItemRequest> {
        new ItemRequest { SKU = "0010015488000060", ReqQty = 2 } ,
        new ItemRequest { SKU = "0010015491000060", ReqQty = 1 }
        };

    //ACT
    //This is a WCF SOAP client making a service request.
    invResponse = client.GetInv("US", items);
    var inventory = invResponse.ItemInvResults;

    //ASSERT
    Assert.AreEqual(2, inventory.Count);
    Assert.IsTrue(inventory.Any(x => x.AvailQty > 0));
}