/// <summary>
/// Estimates the shipping method. Does not save the cart.
/// </summary>
/// <param name="param"></param>
/// <returns></returns>
public virtual async Task <ShippingMethodViewModel> EstimateShippingAsync(EstimateShippingParam param)
{
if (param == null)
{
throw new ArgumentNullException("param");
}
if (param.CultureInfo == null)
{
throw new ArgumentException(ArgumentNullMessageFormatter.FormatErrorMessage("CultureInfo"), "param");
}
if (param.Cart == null)
{
throw new ArgumentException(ArgumentNullMessageFormatter.FormatErrorMessage("Cart"), "param");
}
var shippingMethods = await GetShippingMethodsForShippingEstimationAsync(param);
var selectedMethod = GetCheapestShippingMethodViewModel(shippingMethods);
var firstShipment = GetShipment(param.Cart);
if (param.ForceUpdate || firstShipment.FulfillmentMethod == null)
{
firstShipment.FulfillmentMethod = selectedMethod;
}
var vm = CartViewModelFactory.GetShippingMethodViewModel(firstShipment.FulfillmentMethod, param.CultureInfo);
return(vm);
}
public void WHEN_param_is_null_SHOULD_Throw_ArgumentNullException()
{
//Arrange
EstimateShippingParam param = null;
var sut = Container.CreateInstance <ShippingMethodViewService>();
//Act
var exception = Assert.ThrowsAsync <ArgumentNullException>(() => sut.EstimateShippingAsync(param));
//Assert
exception.ParamName.Should().BeEquivalentTo("param");
}
public void WHEN_param_CultureInfo_is_null_SHOULD_Throw_ArgumentException()
{
//Arrange
var param = new EstimateShippingParam
{
CultureInfo = null,
Cart = new Overture.ServiceModel.Orders.Cart(),
ForceUpdate = GetRandom.Boolean()
};
var sut = Container.CreateInstance <ShippingMethodViewService>();
//Act
var exception = Assert.ThrowsAsync <ArgumentException>(() => sut.EstimateShippingAsync(param));
//Assert
exception.ParamName.Should().BeEquivalentTo("param");
exception.Message.Should().ContainEquivalentOf("CultureInfo");
}
protected virtual async Task <List <FulfillmentMethod> > GetShippingMethodsForShippingEstimationAsync(EstimateShippingParam param)
{
var shippingMethods = await GetFulfillmentMethods(new GetShippingMethodsParam
{
Scope = param.Cart.ScopeId,
CultureInfo = param.CultureInfo,
CustomerId = param.Cart.CustomerId,
CartName = param.Cart.Name
}).ConfigureAwait(false);
if (shippingMethods == null || !shippingMethods.Any())
{
throw new InvalidDataException("No shipping method was defined.");
}
return(shippingMethods);
}
