public void GetGetTop5ProductsSold_Given_Null_Should_ThrowArgumentNullException()
{
//Arrange
CollectionOfMerchantOrderResponse sut = null;
//Act & Assert
sut.Invoking(s => s.GetTop5ProductsSold()).Should().Throw <ArgumentNullException>();
}
public Task <List <ProductDto> > GetTop5ProductsSoldFromOrders(CollectionOfMerchantOrderResponse collectionOfMerchantOrderResponse)
{
if (collectionOfMerchantOrderResponse is null)
{
throw new ArgumentNullException(nameof(collectionOfMerchantOrderResponse));
}
return(GetTop5ProductsSoldFromOrdersInternal(collectionOfMerchantOrderResponse)); //https://rules.sonarsource.com/csharp/RSPEC-4457
}
public async Task GetTop5ProductsSoldFromOrders_Should_ReturnListOfProductDtos()
{
var expected = new ProductDtosBuilder()
.WithProductDtoIs("ProductNo1", 200, "Name1", "EAN1", 300)
.WithProductDtoIs("ProductNo2", 150, "Name2", "EAN2", 200)
.WithProductDtoIs("ProductNo3", 50, "Name3", "EAN3", 50)
.Build();
var lines1 = new MerchantOrderLineResponsesBuilder()
.WithMerchantOrderLineResponseIs("ProductNo3", 50)
.WithMerchantOrderLineResponseIs("ProductNo2", 100)
.WithMerchantOrderLineResponseIs("ProductNo1", 50)
.Build();
var lines2 = new MerchantOrderLineResponsesBuilder()
.WithMerchantOrderLineResponseIs("ProductNo1", 50)
.WithMerchantOrderLineResponseIs("ProductNo2", 50)
.WithMerchantOrderLineResponseIs("ProductNo1", 100)
.Build();
var merchantOrderResponses = new MerchantOrderResponsesBuilder()
.WithmerchantOrderResponseIs(lines1)
.WithmerchantOrderResponseIs(lines2)
.Build();
var collectionMerchantOrderResponse = new CollectionOfMerchantOrderResponse()
{
Content = merchantOrderResponses
};
var productRespones = new MerchantProductResponsesBuilder()
.WithMerchantProductResponseIs("ProductNo3", "Name3", "EAN3", 50)
.WithMerchantProductResponseIs("ProductNo2", "Name2", "EAN2", 200)
.WithMerchantProductResponseIs("ProductNo1", "Name1", "EAN1", 300)
.Build();
var collectionMerchantProductResponse = new CollectionOfMerchantProductResponse()
{
Content = productRespones
};
var mockedchannelEngineHttpClient = new Mock <IChannelEngineHttpClient>();
mockedchannelEngineHttpClient.Setup(c => c.GetProducts(It.IsAny <List <string> >())).ReturnsAsync(collectionMerchantProductResponse);
var sut = new ProductsFromOrdersHandler(mockedchannelEngineHttpClient.Object);
//Act
var result = await sut.GetTop5ProductsSoldFromOrders(collectionMerchantOrderResponse);
//Assert
result.Should().BeEquivalentTo(expected, options => options.WithStrictOrdering());
}
public static List <ProductDto> GetTop5ProductsSold(this CollectionOfMerchantOrderResponse collectionOfMerchantOrderResponse)
{
if (collectionOfMerchantOrderResponse?.Content is null)
{
throw new ArgumentNullException(nameof(collectionOfMerchantOrderResponse));
}
var lines = collectionOfMerchantOrderResponse.Content.SelectMany(c => c.Lines);
return(lines
.GroupBy(
l => l.MerchantProductNo,
(key, l) => new ProductDto {
MerchantProductNo = key,
TotalQuantity = l.Select(l => l.Quantity).Aggregate((a, b) => a + b)
})
.OrderByDescending(p => p.TotalQuantity)
.Take(5)
.ToList());
}
public void GetGetTop5ProductsSold_Should_ReturnTop5ProductsSold()
{
//Arrange
var expected = new ProductDtosBuilder()
.WithProductDtoIs("ProductNo1", 200)
.WithProductDtoIs("ProductNo2", 150)
.WithProductDtoIs("ProductNo3", 50)
.Build();
var lines1 = new MerchantOrderLineResponsesBuilder()
.WithMerchantOrderLineResponseIs("ProductNo3", 50)
.WithMerchantOrderLineResponseIs("ProductNo2", 100)
.WithMerchantOrderLineResponseIs("ProductNo1", 50)
.Build();
var lines2 = new MerchantOrderLineResponsesBuilder()
.WithMerchantOrderLineResponseIs("ProductNo1", 50)
.WithMerchantOrderLineResponseIs("ProductNo2", 50)
.WithMerchantOrderLineResponseIs("ProductNo1", 100)
.Build();
var merchantOrderResponses = new MerchantOrderResponsesBuilder()
.WithmerchantOrderResponseIs(lines1)
.WithmerchantOrderResponseIs(lines2)
.Build();
var sut = new CollectionOfMerchantOrderResponse()
{
Content = merchantOrderResponses
};
//Act
var result = sut.GetTop5ProductsSold();
//Assert
result.Should().BeEquivalentTo(expected, option => option.WithStrictOrdering());
}
public IOrderedEnumerable <(string?MerchantProductNo, string?Gtin, int Quantity)> OrderProductsByQuantity(CollectionOfMerchantOrderResponse orders)
{
if (orders is null)
{
throw new ArgumentNullException(nameof(orders));
}
return(orders.Content
.SelectMany(x => x.Lines)
.GroupBy(x => x.MerchantProductNo)
.Select(x => (MerchantProductNo: x.Key, Gtin: x.Select(x => x.Gtin).First(), Quantity: x.Sum(x => x.Quantity)))
.OrderByDescending(x => x.Quantity));
}
private async Task <List <ProductDto> > GetTop5ProductsSoldFromOrdersInternal(CollectionOfMerchantOrderResponse collectionOfMerchantOrderResponse)
{
var products = collectionOfMerchantOrderResponse.GetTop5ProductsSold();
var productsResponse = await channelEngineHttpClient.GetProducts(products.Select(p => p.MerchantProductNo).ToList());
return(MapProductsResponseToProductDtos(productsResponse, products));
}
