public void SaveStatus()
{
var orderId = new Guid("7BC69EB6-805F-45DB-8B7F-89B3E7580549");
var provider = new OrderProvider();
var initialStatus = provider.GetBy(orderId).Status;
var newStatus = initialStatus != OrderStatus.Paid ? OrderStatus.Paid : OrderStatus.Viewed;
var order = new Order {
Id = orderId, Status = newStatus
};
provider.SaveStatus(order);
Assert.AreEqual(newStatus, provider.GetBy(orderId).Status);
// roll back
order.Status = initialStatus;
provider.SaveStatus(order);
Assert.AreEqual(initialStatus, provider.GetBy(orderId).Status);
}
public Option <Order> GetBy(Guid orderId) => _provider.GetBy(orderId).AsOption();