对于 .net core 6 中的控制器调用，WebApplicationFactory 始终返回 404

我按照微软的文档进行集成测试：https://learn.microsoft.com/en-us/aspnet/core/test/integration-tests?view=aspnetcore-6.0#introduction-to-integration-tests https://learn.microsoft.com/en-us/aspnet/core/test/integration-tests?view=aspnetcore-6.0#introduction-to-integration-tests

在.net core 6中，startup.cs已被删除，我之前使用的集成测试不再按原样工作。我需要进行更新。

在我的 API csproj 中，我添加了：

<ItemGroup>
        <InternalsVisibleTo Include="Integration.Tests" />
</ItemGroup>

这是 Integration.Tests csproj：

<Project Sdk="Microsoft.NET.Sdk">

    <PropertyGroup>
        <TargetFramework>net6.0</TargetFramework>
        <IsPackable>false</IsPackable>
        <IsTestProject>true</IsTestProject>
    </PropertyGroup>

    <ItemGroup>
        <PackageReference Include="Microsoft.AspNetCore.Hosting.Abstractions" Version="2.2.0" />
        <PackageReference Include="Microsoft.AspNetCore.Mvc.Testing" Version="6.0.0" />
        <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.0" />
        <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="6.0.0" />
        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
        <PackageReference Include="xunit" Version="2.4.1" />
        <PackageReference Include="xunit.runner.visualstudio" Version="2.4.3">
            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
            <PrivateAssets>all</PrivateAssets>
        </PackageReference>
        <PackageReference Include="coverlet.collector" Version="3.1.0">
            <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
            <PrivateAssets>all</PrivateAssets>
        </PackageReference>
    </ItemGroup>

    

</Project>

我创建了一个 TestWebAppFactory.cs，如下所示：

public class TestWebAppFactory<TEntryPoint> : WebApplicationFactory<Program> where TEntryPoint : Program
{
    public ITestOutputHelper Output { get; set; }
    public List<string> Logs { get; private set; } = new List<string>();

    public TestWebAppFactory([NotNull] ITestOutputHelper output)
    {
        Output = output;
    }

    protected override void ConfigureWebHost(IWebHostBuilder builder)
    {
        builder
            .ConfigureServices(services =>
            {
                var descriptor = services.SingleOrDefault(
                    d => d.ServiceType ==
                        typeof(DbContextOptions<MyDbContext>));

                if (descriptor != null)
                {
                    services.Remove(descriptor);
                }

                services.AddDbContext<MyDbContext>(options =>
                {
                    options.UseInMemoryDatabase("My.Sample");
                });
            })
            .Configure(app =>  {
                var serviceProvider = app.ApplicationServices;
                using var scope = serviceProvider.CreateScope();
                var itemManager = serviceProvider.GetRequiredService<IItemManager>();
                TestDbInitializer.Seed(scope.ServiceProvider, Output);
            });

    }
}

还有我的 Item_Tests.cs：

public class Items_Tests : IClassFixture<Program>
    {
        private readonly HttpClient _client;
        private readonly TestServer _server;
        private readonly IWebHost _host;

        public Items_Tests(ITestOutputHelper output)
        {
            var factory = new TestWebAppFactory<Program>(output);
            _client = factory
                .CreateClient();
        } 

        [Fact]
        public async Task Index_WhenCalled_ReturnsApplicationForm()
        {
            var response = await _client.GetAsync(Constants.Api.V1.Items.Url);

            response.EnsureSuccessStatusCode();

            var responseString = await response.Content.ReadAsStringAsync();

            Assert.Contains("Mark", responseString);
            Assert.Contains("Evelin", responseString);
        }

    }

注意：我希望能够将 ITestOuputHelper 发送到 TestWebAppFactory，以便在输出中写入一些有用的信息，但我在此不共享这些信息，以减少代码量。

注意2：当我启动 API 时，一切正常，我将在 Swagger 中查看我的控制器并使用代码 200 returnsw 调用 get。

所以每次测试失败时：

            var response = await _client.GetAsync(Constants.Api.V1.Items.Url);

            response.EnsureSuccessStatusCode();

响应总是出现 404 错误。

我应该怎么做才能使其正常工作？

Thanks

所以最后我找到了为什么当我删除时会得到 404。配置部分在测试Web应用工厂我能够连接到 API。

所以现在我需要找到如何在测试期间播种数据:)