mirror of https://github.com/abpframework/abp
Halil İbrahim Kalkan
6 years ago
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## ASP.NET Core MVC Tutorial - Part III
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### About this Tutorial
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This is the third part of the Angular tutorial series. See all parts:
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- [Part I: Create the project and a book list page](Part-I.md)
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- [Part II: Create, Update and Delete books](Part-II.md)
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- **Part III: Integration Tests (this tutorial)**
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You can access to the **source code** of the application from the [GitHub repository](https://github.com/abpframework/abp/tree/dev/samples/BookStore-Angular-MongoDb).
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### Test Projects in the Solution
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There are multiple test projects in the solution:
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Each project is used to test the related application project. Test projects use the following libraries for testing:
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* [xunit](https://xunit.github.io/) as the main test framework.
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* [Shoudly](http://shouldly.readthedocs.io/en/latest/) as an assertion library.
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* [NSubstitute](http://nsubstitute.github.io/) as a mocking library.
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### Adding Test Data
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Startup template contains the `BookStoreTestDataSeedContributor` class in the `Acme.BookStore.TestBase` project that creates some data to run tests on.
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Change the `BookStoreTestDataSeedContributor` class as show below:
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````C#
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using System;
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using System.Threading.Tasks;
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using Volo.Abp.Data;
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using Volo.Abp.DependencyInjection;
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using Volo.Abp.Domain.Repositories;
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using Volo.Abp.Guids;
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namespace Acme.BookStore
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{
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public class BookStoreTestDataSeedContributor
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: IDataSeedContributor, ITransientDependency
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{
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private readonly IRepository<Book, Guid> _bookRepository;
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private readonly IGuidGenerator _guidGenerator;
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public BookStoreTestDataSeedContributor(
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IRepository<Book, Guid> bookRepository,
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IGuidGenerator guidGenerator)
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{
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_bookRepository = bookRepository;
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_guidGenerator = guidGenerator;
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}
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public async Task SeedAsync(DataSeedContext context)
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{
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await _bookRepository.InsertAsync(
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new Book
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{
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Id = _guidGenerator.Create(),
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Name = "Test book 1",
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Type = BookType.Fantastic,
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PublishDate = new DateTime(2015, 05, 24),
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Price = 21
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}
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);
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await _bookRepository.InsertAsync(
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new Book
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{
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Id = _guidGenerator.Create(),
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Name = "Test book 2",
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Type = BookType.Science,
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PublishDate = new DateTime(2014, 02, 11),
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Price = 15
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}
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);
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}
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}
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}
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````
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* Injected `IRepository<Book, Guid>` and used it in the `SeedAsync` to create two book entities as the test data.
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* Used `IGuidGenerator` service to create GUIDs. While `Guid.NewGuid()` would perfectly work for testing, `IGuidGenerator` has additional features especially important while using real databases (see the [Guid generation document](../../Guid-Generation.md) for more).
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### Testing the BookAppService
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Create a test class named `BookAppService_Tests` in the `Acme.BookStore.Application.Tests` project:
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````C#
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using System.Threading.Tasks;
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using Shouldly;
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using Volo.Abp.Application.Dtos;
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using Xunit;
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namespace Acme.BookStore
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{
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public class BookAppService_Tests : BookStoreApplicationTestBase
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{
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private readonly IBookAppService _bookAppService;
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public BookAppService_Tests()
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{
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_bookAppService = GetRequiredService<IBookAppService>();
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}
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[Fact]
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public async Task Should_Get_List_Of_Books()
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{
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//Act
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var result = await _bookAppService.GetListAsync(
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new PagedAndSortedResultRequestDto()
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);
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//Assert
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result.TotalCount.ShouldBeGreaterThan(0);
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result.Items.ShouldContain(b => b.Name == "Test book 1");
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}
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}
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}
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````
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* `Should_Get_List_Of_Books` test simply uses `BookAppService.GetListAsync` method to get and check the list of users.
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Add a new test that creates a valid new book:
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````C#
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[Fact]
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public async Task Should_Create_A_Valid_Book()
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{
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//Act
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var result = await _bookAppService.CreateAsync(
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new CreateUpdateBookDto
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{
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Name = "New test book 42",
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Price = 10,
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PublishDate = DateTime.Now,
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Type = BookType.ScienceFiction
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}
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);
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//Assert
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result.Id.ShouldNotBe(Guid.Empty);
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result.Name.ShouldBe("New test book 42");
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}
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````
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Add a new test that tries to create an invalid book and fails:
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````C#
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[Fact]
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public async Task Should_Not_Create_A_Book_Without_Name()
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{
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var exception = await Assert.ThrowsAsync<AbpValidationException>(async () =>
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{
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await _bookAppService.CreateAsync(
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new CreateUpdateBookDto
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{
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Name = "",
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Price = 10,
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PublishDate = DateTime.Now,
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Type = BookType.ScienceFiction
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}
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);
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});
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exception.ValidationErrors
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.ShouldContain(err => err.MemberNames.Any(mem => mem == "Name"));
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}
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````
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* Since the `Name` is empty, ABP throws an `AbpValidationException`.
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Open the **Test Explorer Window** (use Test -> Windows -> Test Explorer menu if it is not visible) and **Run All** tests:
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Congratulations, green icons show that tests have been successfully passed!
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