从API继承的TestProject中包含的TestStartup.Startup(包含在单独的项目中)会导致404错误 [英] TestStartup contained in a TestProject that inherits from API.Startup (contained in separate project) causes 404 error

问题描述

我正在尝试将StartupTest.cs与XUnit和TestServer一起使用.

I am trying to use a StartupTest.cs with XUnit and TestServer.

我已使用Visual Studio 2017 15.9.3遵循以下说明:

I have followed these instructions using Visual Studio 2017 15.9.3:

1)创建一个新的解决方案.

1) Create a new solution.

2)将ASP.Net Core Web应用程序(Web API)添加到项目中.称之为API.没有Https或Docker.

2) Add an ASP.Net Core web application (web API) to the project. Call it API. No Https or Docker.

3)将xUnit测试项目(.NET Core)添加到解决方案.称之为:XUnitTestProject1

3) Add a xUnit Test project (.NET Core) to the solution. Call it: XUnitTestProject1

4)从XUnit项目中添加对Web API项目的引用.

4) Add a reference to the Web API project from the XUnit project.

5)在XUnit项目中安装以下Nuget软件包: Microsoft.AspNetCore.TestHost，Microsoft.Extensions.PlatformAbstractions和Microsoft.AspNetCore.All.

5) Install the following Nuget packages in the XUnit project: Microsoft.AspNetCore.TestHost, Microsoft.Extensions.PlatformAbstractions and Microsoft.AspNetCore.All.

6)将以下类添加到单元测试项目中(请注意，Startup是来自Web api项目的Startup.cs):

6) Add the following class to the Unit Test project (note that Startup is the Startup.cs from the web api project):

using API;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.TestHost;
using Microsoft.Extensions.PlatformAbstractions;
using System;
using System.IO;
using System.Net.Http;


namespace XUnitTestProject1
{
    public class TestServerFixture : IDisposable
    {
        private readonly TestServer _testServer;
        public HttpClient Client { get; }

        public TestServerFixture()
        {
            var builder = new WebHostBuilder()
                   .UseContentRoot(GetContentRootPath())
                   .UseEnvironment("Test")
                   .UseStartup<Startup>();  // Uses Start up class from your API Host project to configure the test server

            _testServer = new TestServer(builder);
            Client = _testServer.CreateClient();

        }

         private string GetContentRootPath()
    {
        var testProjectPath = PlatformServices.Default.Application.ApplicationBasePath;
        var relativePathToHostProject = @"..\..\..\..\..\..\TestHost";
        return Path.Combine(testProjectPath, relativePathToHostProject);
    }

        public void Dispose()
        {
            Client.Dispose();
            _testServer.Dispose();
        }
    }
}

8)将此测试添加到测试项目中:

8) Add this test to the test project:

using System;
using Xunit;

namespace XUnitTestProject1
{
    public class UnitTest1
    {
        private readonly TestServerFixture _fixture;

        public UnitTest1(TestServerFixture fixture)
        {
            _fixture = new TestServerFixture(); //Make sure class implements IClassFixture.
        }

        [Fact]
        public async System.Threading.Tasks.Task Test1Async()
        {
            var response = await _fixture.Client.GetAsync("api/Values");

            response.EnsureSuccessStatusCode();

            var responseStrong = await response.Content.ReadAsStringAsync();
        }
    }
}

9)运行测试并收到成功的响应(200).到此为止一切都很好.

9) Run the test and receive a successful response (200). All is well up to this point.

10)下一步是在单元测试项目中创建一个TestStartup类:

10) The next step is to create a TestStartup class in the Unit Test project:

public class StartupTest : Startup
    { 
        public StartupTest(IConfiguration env) : base(env)
        {
        }     
    }

注意:我意识到这个Startup类目前是毫无意义的-我确实打算在工作后重写一些方法.

Note: I realise this Startup class is pointless at the moment - I do plan to override some methods once I get it working.

11)修改第6点的代码，即更改此行:

11) Amend the code in point 6 i.e. change this line:

.UseStartup<Startup>(); 

收件人:

.UseStartup<StartupTest>(); 

12)再次运行测试，看到404响应而不是200响应.

12) Run the test again and see a 404 response instead of 200 response.

添加TestStartup类后，为什么会看到404响应.

Why do I see a 404 response after I add the TestStartup class.

TestStartup继承自API.Startup.

TestStartup inherits from API.Startup.

推荐答案

我在这里找到了答案: https://github.com/aspnet/Mvc/issues/5992 .我只需要重写StartupTest中的ConfigureServices即可，如下所示:

I found the answer here: https://github.com/aspnet/Mvc/issues/5992. I simply had to override ConfigureServices in StartupTest as follows:

public override void ConfigureServices(IServiceCollection services)
        {
            services.AddMvc().SetCompatibilityVersion(CompatibilityVersion.Version_2_1).AddApplicationPart(typeof(ValuesController).Assembly);
        }

这篇关于从API继承的TestProject中包含的TestStartup.Startup(包含在单独的项目中)会导致404错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！