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Added solutions (not yet refactored) for Slimmed Business logic
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29
...troductionToEventSourcing/Solved/07-BusinessLogic.Slimmed/07-BusinessLogic.Slimmed.csproj
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| <Project Sdk="Microsoft.NET.Sdk"> | ||
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| <PropertyGroup> | ||
| <TargetFramework>net8.0</TargetFramework> | ||
| <RootNamespace>IntroductionToEventSourcing.BusinessLogic.Slimmed</RootNamespace> | ||
| </PropertyGroup> | ||
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| <ItemGroup> | ||
| <PackageReference Include="FluentAssertions" Version="6.12.0" /> | ||
| <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.9.0" /> | ||
| <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3"> | ||
| <PrivateAssets>all</PrivateAssets> | ||
| <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> | ||
| </PackageReference> | ||
| <PackageReference Include="Ogooreck" Version="0.8.1" /> | ||
| <PackageReference Include="xunit" Version="2.8.0" /> | ||
| <PackageReference Include="xunit.runner.visualstudio" Version="2.8.0"> | ||
| <PrivateAssets>all</PrivateAssets> | ||
| <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets> | ||
| </PackageReference> | ||
| <PackageReference Include="coverlet.collector" Version="6.0.2"> | ||
| <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets> | ||
| <PrivateAssets>all</PrivateAssets> | ||
| </PackageReference> | ||
| </ItemGroup> | ||
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| </Project> |
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...troductionToEventSourcing/Solved/07-BusinessLogic.Slimmed/Immutable/BusinessLogicTests.cs
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| using Ogooreck.BusinessLogic; | ||
| using Xunit; | ||
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| namespace IntroductionToEventSourcing.BusinessLogic.Slimmed.Immutable; | ||
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| using static ShoppingCartEvent; | ||
| using static ShoppingCartCommand; | ||
| using static ShoppingCartService; | ||
|
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| public class BusinessLogicTests | ||
| { | ||
| // Open | ||
| [Fact] | ||
| public void OpensShoppingCart() => | ||
| Spec.Given([]) | ||
| .When(() => Handle(new OpenShoppingCart(shoppingCartId, clientId, now))) | ||
| .Then(new ShoppingCartOpened(shoppingCartId, clientId, now)); | ||
|
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| // Add | ||
| [Fact] | ||
| public void CantAddProductItemToNotExistingShoppingCart() => | ||
| Spec.Given([]) | ||
| .When(state => | ||
| Handle( | ||
| FakeProductPriceCalculator.Returning(Price), | ||
| new AddProductItemToShoppingCart(shoppingCartId, ProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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||
| [Fact] | ||
| public void AddsProductItemToEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| FakeProductPriceCalculator.Returning(Price), | ||
| new AddProductItemToShoppingCart(shoppingCartId, ProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .Then( | ||
| new ProductItemAddedToShoppingCart( | ||
| shoppingCartId, | ||
| new PricedProductItem(ProductItem.ProductId, ProductItem.Quantity, Price), | ||
| now | ||
| ) | ||
| ); | ||
|
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|
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| [Fact] | ||
| public void AddsProductItemToNonEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| FakeProductPriceCalculator.Returning(OtherPrice), | ||
| new AddProductItemToShoppingCart(shoppingCartId, OtherProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .Then( | ||
| new ProductItemAddedToShoppingCart( | ||
| shoppingCartId, | ||
| new PricedProductItem(OtherProductItem.ProductId, OtherProductItem.Quantity, OtherPrice), | ||
| now | ||
| ) | ||
| ); | ||
|
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| [Fact] | ||
| public void CantAddProductItemToConfirmedShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartConfirmed(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| FakeProductPriceCalculator.Returning(Price), | ||
| new AddProductItemToShoppingCart(shoppingCartId, ProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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||
| [Fact] | ||
| public void CantAddProductItemToCanceledShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartCanceled(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| FakeProductPriceCalculator.Returning(Price), | ||
| new AddProductItemToShoppingCart(shoppingCartId, ProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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||
| // Remove | ||
| [Fact] | ||
| public void CantRemoveProductItemFromNotExistingShoppingCart() => | ||
| Spec.Given([]) | ||
| .When(state => | ||
| Handle( | ||
| new RemoveProductItemFromShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void RemovesExistingProductItemFromShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| new RemoveProductItemFromShoppingCart(shoppingCartId, pricedProductItem with { Quantity = 1 }, now), | ||
| state | ||
| ) | ||
| ) | ||
| .Then( | ||
| new ProductItemRemovedFromShoppingCart( | ||
| shoppingCartId, | ||
| pricedProductItem with { Quantity = 1 }, | ||
| now | ||
| ) | ||
| ); | ||
|
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| [Fact] | ||
| public void CantRemoveNonExistingProductItemFromNonEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| new RemoveProductItemFromShoppingCart(shoppingCartId, otherPricedProductItem with { Quantity = 1 }, | ||
| now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CantRemoveExistingProductItemFromCanceledShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartConfirmed(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| new RemoveProductItemFromShoppingCart(shoppingCartId, pricedProductItem with { Quantity = 1 }, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CantRemoveExistingProductItemFromConfirmedShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartCanceled(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle( | ||
| new RemoveProductItemFromShoppingCart(shoppingCartId, pricedProductItem with { Quantity = 1 }, now), | ||
| state | ||
| ) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| // Confirm | ||
|
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| [Fact] | ||
| public void CantConfirmNotExistingShoppingCart() => | ||
| Spec.Given([]) | ||
| .When(state => | ||
| Handle(new ConfirmShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| [Trait("Category", "SkipCI")] | ||
| public void CantConfirmEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| ]) | ||
| .When(state => | ||
| Handle(new ConfirmShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void ConfirmsNonEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| ]) | ||
| .When(state => | ||
| Handle(new ConfirmShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .Then( | ||
| new ShoppingCartConfirmed(shoppingCartId, now) | ||
| ); | ||
|
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| [Fact] | ||
| public void CantConfirmAlreadyConfirmedShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartConfirmed(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle(new ConfirmShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CantConfirmCanceledShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartCanceled(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle(new ConfirmShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| // Cancel | ||
| [Fact] | ||
| [Trait("Category", "SkipCI")] | ||
| public void CantCancelNotExistingShoppingCart() => | ||
| Spec.Given([]) | ||
| .When(state => | ||
| Handle(new CancelShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CancelsEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| ]) | ||
| .When(state => | ||
| Handle(new CancelShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CancelsNonEmptyShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| ]) | ||
| .When(state => | ||
| Handle(new CancelShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .Then( | ||
| new ShoppingCartCanceled(shoppingCartId, now) | ||
| ); | ||
|
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| [Fact] | ||
| public void CantCancelAlreadyCanceledShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartCanceled(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle(new CancelShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| [Fact] | ||
| public void CantCancelConfirmedShoppingCart() => | ||
| Spec.Given([ | ||
| new ShoppingCartOpened(shoppingCartId, clientId, now), | ||
| new ProductItemAddedToShoppingCart(shoppingCartId, pricedProductItem, now), | ||
| new ShoppingCartConfirmed(shoppingCartId, now) | ||
| ]) | ||
| .When(state => | ||
| Handle(new CancelShoppingCart(shoppingCartId, now), state) | ||
| ) | ||
| .ThenThrows<InvalidOperationException>(); | ||
|
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| private readonly DateTimeOffset now = DateTimeOffset.Now; | ||
| private readonly Guid clientId = Guid.NewGuid(); | ||
| private readonly Guid shoppingCartId = Guid.NewGuid(); | ||
| private static readonly ProductItem ProductItem = new(Guid.NewGuid(), Random.Shared.Next(1, 200)); | ||
| private static readonly ProductItem OtherProductItem = new(Guid.NewGuid(), Random.Shared.Next(1, 200)); | ||
| private static readonly int Price = Random.Shared.Next(1, 1000); | ||
| private static readonly int OtherPrice = Random.Shared.Next(1, 1000); | ||
| private readonly PricedProductItem pricedProductItem = | ||
| new(ProductItem.ProductId, ProductItem.Quantity, Price); | ||
| private readonly PricedProductItem otherPricedProductItem = | ||
| new(OtherProductItem.ProductId, OtherProductItem.Quantity, Price); | ||
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| private readonly HandlerSpecification<ShoppingCartEvent, ShoppingCart> Spec = | ||
| Specification.For<ShoppingCartEvent, ShoppingCart>(ShoppingCart.Evolve, ShoppingCart.Initial); | ||
| } |
24 changes: 24 additions & 0 deletions
24
...ntroductionToEventSourcing/Solved/07-BusinessLogic.Slimmed/Immutable/PricingCalculator.cs
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,24 @@ | ||
| namespace IntroductionToEventSourcing.BusinessLogic.Slimmed.Immutable; | ||
|
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| public interface IProductPriceCalculator | ||
| { | ||
| PricedProductItem Calculate(ProductItem productItems); | ||
| } | ||
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| public class FakeProductPriceCalculator: IProductPriceCalculator | ||
| { | ||
| private readonly int value; | ||
|
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| private FakeProductPriceCalculator(int value) | ||
| { | ||
| this.value = value; | ||
| } | ||
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| public static FakeProductPriceCalculator Returning(int value) => new(value); | ||
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| public PricedProductItem Calculate(ProductItem productItem) | ||
| { | ||
| var (productId, quantity) = productItem; | ||
| return new PricedProductItem(productId, quantity, value); | ||
| } | ||
| } |
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