public void Should_Initialize_Correctly()
{
//arrange
Guid id = Guid.NewGuid();
decimal previousPrice = 999;
decimal currentPrice = 999;
//act
var @event = new ProductPriceChangedDomainEvent(id, previousPrice, currentPrice);
//assert
@event.ProductId.Should().Be(id);
@event.PreviousPrice.Should().Be(previousPrice);
@event.CurrentPrice.Should().Be(currentPrice);
}
public void Should_ChangePrice_PriceChangedAndRaisedProductPriceChanged()
{
//arrange
var product = GetProduct();
decimal oldPrice = _price;
decimal newPrice = _price + 100;
var lastUpdatedAt = product.LastUpdatedAt;
var lastUpdatedBy = product.LastUpdatedBy;
var createdAt = product.CreatedAt;
var createdBy = product.CreatedBy;
//act
product.ChangePrice(newPrice);
var productAddedDomainEvent = new ProductPriceChangedDomainEvent(product.Id,
oldPrice,
newPrice);
var domainEvent = JsonConvert.SerializeObject(product.DomainEvents.ElementAt(1));
var expectedDomainEvent = JsonConvert.SerializeObject(productAddedDomainEvent);
//assert
product.AggregateId.Should().Be(productAddedDomainEvent.ProductId);
product.Id.Should().Be(productAddedDomainEvent.ProductId);
product.Name.Should().Be(_name);
product.Description.Should().Be(_description);
product.BarCode.Should().Be(_barCode);
product.Price.Should().Be(newPrice);
product.Dimensions.Should().Be(_dimensions);
product.ManufacturerId.Should().Be(_manufacturerId);
product.CategoryId.Should().Be(_categoryId);
product.ExternalSourceName.Should().Be(_externalSourceName);
product.ExternalId.Should().Be(_externalId);
product.IsPublished.Should().BeFalse();
product.ProductType.Should().BeNull();
product.ProductTypeId.Should().Be(ProductType.SimpleProduct.Id);
product.LastUpdatedAt.Should().NotBe(lastUpdatedAt ?? DateTime.UtcNow);
product.LastUpdatedBy.Should().Be(lastUpdatedBy);
product.CreatedAt.Should().Be(createdAt);
product.CreatedBy.Should().Be(createdBy);
product.AggregateTypeName.Should().Be(nameof(Domain.Entities.Product.Product));
expectedDomainEvent.Should().Be(domainEvent);
}
public void ChangePrice(decimal price)
{
if (price < 0)
{
throw new DomainException("Price must not be below 0!");
}
if (price == Price)
{
return;
}
var previousPrice = Price;
Price = price;
var @event = new ProductPriceChangedDomainEvent(Id, previousPrice, Price);
AddDomainEvent(@event);
}
