public void PurchaseFromHolds_Test(RealTimeInventory inventory, uint toPurchase)
{
IInventoryServiceCompletedMessage response;
using (var testHelper = CreateInventoryServiceServer(inventory))
response = testHelper.PurchaseFromHoldsAsync(inventory, (int)toPurchase).WaitAndGetOperationResult();
InventoryServiceSpecificationHelper.AssertPurchaseFromHolds(inventory, toPurchase, response);
}