.net Core 3.0，DirectoryNotFoundException 与 Xunit 集成测试

Question

我在 .net core 3.0 上迁移 Xunit 集成测试时遇到了一个新问题。我将项目移动到子文件夹中，现在出现 DirectoryNotFoundException。

测试服务器夹具：

public class TestServerFixture : WebApplicationFactory<TestStartup>
{
    public HttpClient Client { get; }
    public ITestOutputHelper Output { get; set; }

    protected override IHostBuilder CreateHostBuilder()
    {
        var builder = Host.CreateDefaultBuilder()
            .ConfigureLogging(logging =>
            {
                logging.ClearProviders();
                logging.AddXunit(Output);
            })
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder
                    .UseStartup<TestStartup>()
                    .ConfigureTestServices((services) =>
                    {
                        services
                            .AddControllers()
                            .AddApplicationPart(typeof(Startup).Assembly);
                    });
            });

        return builder;
    }

    public TestServerFixture SetOutPut(ITestOutputHelper output)
    {
        Output = output;
        return this;
    }

    protected override void Dispose(bool disposing)
    {
        base.Dispose(disposing);
        Output = null;
    }
}

错误信息：

消息：System.IO.DirectoryNotFoundException：**C:\Users\Me\source\repos\tests\TestingWithDotNetCore3_0\MyIntegrationTests** 堆栈跟踪：PhysicalFileProvider.ctor（字符串根，ExclusionFilters 过滤器）PhysicalFileProvider.ctor（字符串根）HostBuilder。 CreateHostingEnvironment() HostBuilder.Build() WebApplicationFactory 1.CreateHost(IHostBuilder builder) WebApplicationFactory1.EnsureServer() WebApplicationFactory 1.CreateDefaultClient(DelegatingHandler[] handlers) WebApplicationFactory1.CreateDefaultClient(Uri baseAddress, DelegatingHandler[] handlers) WebApplicationFactory 1.CreateClient(WebApplicationFactoryClientOptions options) WebApplicationFactory1.CreateClient() WeatherForecastController_Tests.ctor(TestServerFixture testServerFixture, ITestOutputHelper 输出) 第 25 行

该项目不在：

*C:\Users\Me\source\repos\tests\TestingWithDotNetCore3_0\MyIntegrationTests*

在TestServerFixture.CreateHostBuilder中， Directory.GetCurrentDirectory()返回的值为

“C:\Users\Me\source\repos\tests\TestingWithDotNetCore3_0\src\tests\AllInOne.Integration.Tests\bin\Debug\netcoreapp3.0”

我试过：

    protected override IHostBuilder CreateHostBuilder()
    {
        var builder = Host.CreateDefaultBuilder()
            **.UseContentRoot(Directory.GetCurrentDirectory())**
            .ConfigureLogging(logging =>
            {
                logging.ClearProviders();
                logging.AddXunit(Output);
            })
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder
                    .UseStartup<TestStartup>()
                    **.UseContentRoot(Directory.GetCurrentDirectory())**
                    .ConfigureTestServices((services) =>
                    {
                        services
                            .AddControllers()
                            .AddApplicationPart(typeof(Startup).Assembly);
                    });
            });

        return builder;
    }

但这不起作用。

我做了一个存储库来向您展示这个问题： https ://github.com/ranouf/TestingWithDotNetCore3_0

您有什么正确配置的建议吗？

Answer 1

我通过添加以下固定装置解决了这个问题。UseContentRoot(Directory.GetCurrentDirectory())如果加上的话就不行了CreateHostBuilder()。追鬼的时间浪费了一个小时。荒谬的。

    protected override IHost CreateHost(IHostBuilder builder)
    {
        builder.UseContentRoot(Directory.GetCurrentDirectory());    
        return base.CreateHost(builder);
    }

Answer 2

我在这里找到了一个可用的解决方案：我找到了一个适合我的解决方案/黑客，可以在这里找到：https ://stackoverflow.com/a/57476187/6123422

就我而言，解决方案应该是：

public class TestServerFixture : WebApplicationFactory<Startup>
{
    protected override IHostBuilder CreateHostBuilder()
    {
        var builder = Host.CreateDefaultBuilder()
            .ConfigureLogging(logging =>
            {
                logging.ClearProviders();
                logging.AddXunit(Output);
            })
            .ConfigureWebHostDefaults(webBuilder =>
            {
                webBuilder
                    .ConfigureTestServices((services) =>
                    {
                        services
                            .AddControllers()
                            .AddApplicationPart(typeof(Startup).Assembly);
                    });
            });

        return builder;
    }

    protected override void ConfigureWebHost(IWebHostBuilder builder)
    {
        builder.UseStartup<TestStartup>();    
        base.ConfigureWebHost(builder);
    }
}