ABP(8) - 测试项目 - 官方教程扫盲贴之利用测试项目来回归测试 （详细解说）

1 目标

• 1.1 学会使用测试项目
• 1.2 测试case的使用

2 添加测试数据,修改Acme.BookStore.TestBase项目中的BookStoreTestDataSeedContributor类,它创建一些数据来运行测试. 更改BookStoreTestDataSeedContributor类如下所示:

using System;
using System.Threading.Tasks;
using Volo.Abp.Data;
using Volo.Abp.DependencyInjection;
using Volo.Abp.Domain.Repositories;
using Volo.Abp.Guids;

namespace Acme.BookStore
{
    public class BookStoreTestDataSeedContributor
        : IDataSeedContributor, ITransientDependency
    {
        private readonly IRepository<Book, Guid> _bookRepository;
        private readonly IGuidGenerator _guidGenerator;

        public BookStoreTestDataSeedContributor(
            IRepository<Book, Guid> bookRepository,
            IGuidGenerator guidGenerator)
        {
            _bookRepository = bookRepository;
            _guidGenerator = guidGenerator;
        }

        public async Task SeedAsync(DataSeedContext context)
        {
            await _bookRepository.InsertAsync(
                new Book(id: _guidGenerator.Create(),
                    name: "Test book 1",
                    type: BookType.Fantastic,
                    publishDate: new DateTime(2015, 05, 24),
                    price: 21
                )
            );

            await _bookRepository.InsertAsync(
                new Book(id: _guidGenerator.Create(),
                    name: "Test book 2",
                    type: BookType.Science,
                    publishDate: new DateTime(2014, 02, 11),
                    price: 15
                )
            );
        }
    }
}

3 测试 BookAppService

• 3.1 在 Acme.BookStore.Application.Tests 项目中创建一个名叫 BookAppService_Tests 的测试类

using System;
using System.Linq;
using System.Threading.Tasks;
using Xunit;
using Shouldly;
using Volo.Abp.Application.Dtos;
using Volo.Abp.Validation;
using Microsoft.EntityFrameworkCore.Internal;

namespace Acme.BookStore
{
    public class BookAppService_Tests : BookStoreApplicationTestBase
    {
        private readonly IBookAppService _bookAppService;

        public BookAppService_Tests()
        {
            _bookAppService = GetRequiredService<IBookAppService>();
        }

        [Fact]
        public async Task Should_Get_List_Of_Books()
        {
            //Act
            var result = await _bookAppService.GetListAsync(
                new PagedAndSortedResultRequestDto()
            );

            //Assert
            result.TotalCount.ShouldBeGreaterThan(0);
            result.Items.ShouldContain(b => b.Name == "Test book 1");
        }
    }
}

• 3.2 在 Acme.BookStore.Application.Tests 项目中创建一个名叫 BookAppService_Tests 的测试类

[Fact]
public async Task Should_Create_A_Valid_Book()
{
    //Act
    var result = await _bookAppService.CreateAsync(
        new CreateUpdateBookDto
        {
            Name = "New test book 42",
            Price = 10,
            PublishDate = DateTime.Now,
            Type = BookType.ScienceFiction
        }
    );

    //Assert
    result.Id.ShouldNotBe(Guid.Empty);
    result.Name.ShouldBe("New test book 42");
}

• 3.3 新增测试方法,用以测试创建一个非法book实体失败的场景

[Fact]
public async Task Should_Not_Create_A_Book_Without_Name()
{
    var exception = await Assert.ThrowsAsync<Volo.Abp.Validation.AbpValidationException>(async () =>
    {
        await _bookAppService.CreateAsync(
            new CreateUpdateBookDto
            {
                Name = "",
                Price = 10,
                PublishDate = DateTime.Now,
                Type = BookType.ScienceFiction
            }
        );
    });

    exception.ValidationErrors
        .ShouldContain(err => err.MemberNames.Any(mem => mem == "Name"));
}

结果