ASP.NET Core Integration Test работает локально, но выдает пустое ссылочное исключение при работе в производственной среде

Question

У меня есть веб-приложение ASP.NET Core 2.2 Razor Pages, для которого я написал несколько интеграционных тестов для следования официальному руководству .

Я могу заставить тесты запускаться локально, используя dotnet test или встроенные в Visual Studio тестовые прогоны.Однако на сервере сборки (агент Azure DevOps Hosted 2017) тесты вернут ошибку 500.Я подумал, что это может быть связано с пользовательскими секретами, как указано в Руководстве Скотта Хансельмана , но я все еще получаю ту же ошибку, даже после внедрения некоторых из предложенных им исправлений (я не думаю, что они мне нужны):

• Добавлен builder.AddUserSecrets<Startup>(); для запуска.
• Реализован CustomWebApplicationFactory для установки среды в «Разработка» - в приведенном ниже коде это называется «Производство» для воспроизведения ошибки.

Я также проверил здравомыслие по этому руководству , которое больше сфокусировано на контроллере, но, поскольку на данном этапе мне важны только коды ответов, оно служит моей цели.Я загрузил подробные журналы, и они не проливают свет на проблему.

Мой код указан ниже:

CustomWebApplicationFactory:

using Microsoft.AspNetCore.Authentication.AzureAD.UI;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc.Testing;
using Microsoft.AspNetCore.TestHost;
using Microsoft.Extensions.DependencyInjection;

namespace WebPortal.Int.Tests
{
    /// <summary>
    /// Based on https://fullstackmark.com/post/20/painless-integration-testing-with-aspnet-core-web-api
    /// </summary>
    public class CustomWebApplicationFactory<TStartup> : WebApplicationFactory<Startup> where TStartup : class
    {
        public CustomWebApplicationFactory() { }

        protected override void ConfigureWebHost(IWebHostBuilder builder)
        {
            builder
                .ConfigureTestServices(
                    services =>
                    {
                        services.Configure(AzureADDefaults.OpenIdScheme, (System.Action<OpenIdConnectOptions>)(o =>
                        {
                            // CookieContainer doesn't allow cookies from other paths
                            o.CorrelationCookie.Path = "/";
                            o.NonceCookie.Path = "/";
                        }));
                    }
                )
                .UseEnvironment("Production")
                .UseStartup<Startup>();

        }
    }
}

AuthenticationTests:

using Microsoft.AspNetCore.Mvc.Testing;
using System;
using System.Net.Http;
using System.Threading.Tasks;
using Xunit;

namespace WebPortal.Int.Tests
{
    public class AuthenticationTests : IClassFixture<CustomWebApplicationFactory<Startup>>
    {
        private HttpClient _httpClient { get; }

        public AuthenticationTests(CustomWebApplicationFactory<Startup> fixture)
        {
            WebApplicationFactoryClientOptions webAppFactoryClientOptions = new WebApplicationFactoryClientOptions
            {
                // Disallow redirect so that we can check the following: Status code is redirect and redirect url is login url
                // As per https://docs.microsoft.com/en-us/aspnet/core/test/integration-tests?view=aspnetcore-2.2#test-a-secure-endpoint
                AllowAutoRedirect = false
            };

            _httpClient = fixture.CreateClient(webAppFactoryClientOptions);
        }

        [Theory]
        [InlineData("/")]
        [InlineData("/Index")]
        [InlineData("/Error")]
        public async Task Get_PagesNotRequiringAuthenticationWithoutAuthentication_ReturnsSuccessCode(string url)
        {
            // Act
            HttpResponseMessage response = await _httpClient.GetAsync(url);

            // Assert
            try
            {
                response.EnsureSuccessStatusCode();
            }
            catch (HttpRequestException ex)
            {
                Console.WriteLine(ex.Message, ex.InnerException.Message);
            }
        }
    }
}

Запуск:

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Hosting;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using WebPortal.Authentication;
using WebPortal.Common.ConfigurationOptions;
using WebPortal.DataAccess;
using Microsoft.AspNetCore.Authentication;
using Microsoft.AspNetCore.Authentication.AzureAD.UI;
using Microsoft.AspNetCore.Authentication.OpenIdConnect;
using Microsoft.AspNetCore.Http;

namespace WebPortal
{
    public class Startup
    {
        public Startup(IConfiguration configuration)
        {
            Configuration = configuration;
        }

        public IConfiguration Configuration { get; }

        // This method gets called by the runtime. Use this method to add services to the container.
        public void ConfigureServices(IServiceCollection services)
        {
            services.Configure<CookiePolicyOptions>(options =>
            {
                // This lambda determines whether user consent for non-essential cookies is needed for a given request.
                options.CheckConsentNeeded = context => false;
                options.MinimumSameSitePolicy = SameSiteMode.None;
            });

            services.AddOptions<PowerBiSettings>()
                .Bind(Configuration.GetSection("PowerBI"))
                .ValidateDataAnnotations()
                .Validate(o => o.AreSettingsValid());

            services.AddOptions<AzureActiveDirectorySettings>()
                .Bind(Configuration.GetSection("AzureAd"))
                .ValidateDataAnnotations()
                .Validate(o => o.AreSettingsValid());

            services.AddAuthentication(AzureADDefaults.AuthenticationScheme)
                .AddAzureAD(options => Configuration.Bind("AzureAd", options))
                .AddCookie();

            services.Configure<OpenIdConnectOptions>(AzureADDefaults.OpenIdScheme, options =>
            {
                options.Authority = options.Authority + "/v2.0/";
                options.TokenValidationParameters.ValidateIssuer = false;
            });

            services.AddTransient<Authentication.IAuthenticationHandler, AuthenticationHandler>();
            services.AddTransient<IReportRepository, ReportRepository>();

            services.AddHttpContextAccessor();

            services
                .AddMvc()
                .SetCompatibilityVersion(CompatibilityVersion.Version_2_2)
                .AddRazorPagesOptions(options =>
                {
                    options.Conventions.AuthorizePage("/Reports");
                });
        }

        // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
        {
            var builder = new ConfigurationBuilder();

            if (env.IsDevelopment())
            {
                app.UseDeveloperExceptionPage();

                builder.AddUserSecrets<Startup>();
            }
            else
            {
                app.UseExceptionHandler("/Error");
                // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.
                app.UseHsts();
            }

            app.UseHttpsRedirection();
            app.UseStaticFiles();

            app.UseAuthentication();

            app.UseMvc();
        }
    }
}

Вывод ошибки:

[xUnit.net 00:00:00.00] xUnit.net VSTest Adapter v2.4.1 (64-bit .NET Core 4.6.27317.07)
[xUnit.net 00:00:01.30]   Discovering: WebPortal.Int.Tests
[xUnit.net 00:00:01.40]   Discovered:  WebPortal.Int.Tests
[xUnit.net 00:00:01.41]   Starting:    WebPortal.Int.Tests
info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[0]
    User profile is available. Using 'C:\Users\VssAdministrator\AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
info: Microsoft.AspNetCore.DataProtection.KeyManagement.XmlKeyManager[58]
    Creating key {dd820f09-8139-4d7d-954a-399923660f42} with creation date 2019-03-18 22:13:27Z, activation date 2019-03-18 22:13:27Z, and expiration date 2019-06-16 22:13:27Z.
info: Microsoft.AspNetCore.DataProtection.Repositories.FileSystemXmlRepository[39]
    Writing data to file 'C:\Users\VssAdministrator\AppData\Local\ASP.NET\DataProtection-Keys\key-dd820f09-8139-4d7d-954a-399923660f42.xml'.
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
    Request starting HTTP/2.0 GET http://localhost/Index  
warn: Microsoft.AspNetCore.HttpsPolicy.HttpsRedirectionMiddleware[3]
    Failed to determine the https port for redirect.
fail: Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[1]
    An unhandled exception has occurred while executing the request.
System.ArgumentNullException: Value cannot be null.
Parameter name: uriString
at System.Uri..ctor(String uriString)
at Microsoft.AspNetCore.Authentication.AzureAD.UI.OpenIdConnectOptionsConfiguration.Configure(String name, OpenIdConnectOptions options)
at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
at Microsoft.Extensions.Options.OptionsMonitor`1.<>c__DisplayClass10_0.<Get>b__0()
at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
at System.Lazy`1.ExecutionAndPublication(LazyHelper executionAndPublication, Boolean useDefaultConstructor)
at System.Lazy`1.CreateValue()
at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd(String name, Func`1 createOptions)
at Microsoft.Extensions.Options.OptionsMonitor`1.Get(String name)
at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.InitializeAsync(AuthenticationScheme scheme, HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync(HttpContext context, String authenticationScheme)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)
fail: Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[3]
    An exception was thrown attempting to execute the error handler.
System.ArgumentNullException: Value cannot be null.
Parameter name: uriString
at System.Uri..ctor(String uriString)
at Microsoft.AspNetCore.Authentication.AzureAD.UI.OpenIdConnectOptionsConfiguration.Configure(String name, OpenIdConnectOptions options)
at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
at Microsoft.Extensions.Options.OptionsMonitor`1.<>c__DisplayClass10_0.<Get>b__0()
at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
--- End of stack trace from previous location where exception was thrown ---
at System.Lazy`1.CreateValue()
at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd(String name, Func`1 createOptions)
at Microsoft.Extensions.Options.OptionsMonitor`1.Get(String name)
at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.InitializeAsync(AuthenticationScheme scheme, HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync(HttpContext context, String authenticationScheme)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[2]
    Request finished in 449.9633ms 500 
info: Microsoft.AspNetCore.Hosting.Internal.WebHost[1]
    Request starting HTTP/2.0 GET http://localhost/Error  
fail: Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware[1]
    An unhandled exception has occurred while executing the request.
System.ArgumentNullException: Value cannot be null.
Parameter name: uriString
at System.Uri..ctor(String uriString)
at Microsoft.AspNetCore.Authentication.AzureAD.UI.OpenIdConnectOptionsConfiguration.Configure(String name, OpenIdConnectOptions options)
at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
at Microsoft.Extensions.Options.OptionsMonitor`1.<>c__DisplayClass10_0.<Get>b__0()
at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
--- End of stack trace from previous location where exception was thrown ---
at System.Lazy`1.CreateValue()
at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd(String name, Func`1 createOptions)
at Microsoft.Extensions.Options.OptionsMonitor`1.Get(String name)
at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.InitializeAsync(AuthenticationScheme scheme, HttpContext context)
at Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync(HttpContext context, String authenticationScheme)
at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)
[xUnit.net 00:00:02.61]     WebPortal.Int.Tests.AuthenticationTests.Get_PagesNotRequiringAuthenticationWithoutAuthentication_ReturnsSuccessCode(url: "/Index") [FAIL]
[xUnit.net 00:00:02.61]       System.ArgumentNullException : Value cannot be null.
[xUnit.net 00:00:02.61]       Parameter name: uriString
[xUnit.net 00:00:02.61]       Stack Trace:
[xUnit.net 00:00:02.61]            at System.Uri..ctor(String uriString)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Authentication.AzureAD.UI.OpenIdConnectOptionsConfiguration.Configure(String name, OpenIdConnectOptions options)
[xUnit.net 00:00:02.61]            at Microsoft.Extensions.Options.OptionsFactory`1.Create(String name)
[xUnit.net 00:00:02.61]            at Microsoft.Extensions.Options.OptionsMonitor`1.<>c__DisplayClass10_0.<Get>b__0()
[xUnit.net 00:00:02.61]            at System.Lazy`1.ViaFactory(LazyThreadSafetyMode mode)
[xUnit.net 00:00:02.61]         --- End of stack trace from previous location where exception was thrown ---
[xUnit.net 00:00:02.61]            at System.Lazy`1.CreateValue()
[xUnit.net 00:00:02.61]            at Microsoft.Extensions.Options.OptionsCache`1.GetOrAdd(String name, Func`1 createOptions)
[xUnit.net 00:00:02.61]            at Microsoft.Extensions.Options.OptionsMonitor`1.Get(String name)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Authentication.AuthenticationHandler`1.InitializeAsync(AuthenticationScheme scheme, HttpContext context)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Authentication.AuthenticationHandlerProvider.GetHandlerAsync(HttpContext context, String authenticationScheme)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Authentication.AuthenticationMiddleware.Invoke(HttpContext context)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.StaticFiles.StaticFileMiddleware.Invoke(HttpContext context)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Diagnostics.ExceptionHandlerMiddleware.Invoke(HttpContext context)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.TestHost.HttpContextBuilder.<>c__DisplayClass10_0.<<SendAsync>b__0>d.MoveNext()
[xUnit.net 00:00:02.61]         --- End of stack trace from previous location where exception was thrown ---
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.TestHost.ClientHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Mvc.Testing.Handlers.CookieContainerHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)
[xUnit.net 00:00:02.61]            at Microsoft.AspNetCore.Mvc.Testing.Handlers.RedirectHandler.SendAsync(HttpRequestMessage request, CancellationToken cancellationToken)[xUnit.net 00:00:02.63]     WebPortal.Int.Tests.AuthenticationTests.Get_PagesNotRequiringAuthenticationWithoutAuthentication_ReturnsSuccessCode(url: "/Error") [FAIL]
[xUnit.net 00:00:02.64]     WebPortal.Int.Tests.AuthenticationTests.Get_PagesNotRequiringAuthenticationWithoutAuthentication_ReturnsSuccessCode(url: "") [FAIL]

[xUnit.net 00:00:02.61]            at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts)
[xUnit.net 00:00:02.61]         D:\a\1\s\WebPortal.Int.Tests\AuthenticationTests.cs(24,0): at WebPortal.Int.Tests.AuthenticationTests.Get_PagesNotRequiringAuthenticationWithoutAuthentication_ReturnsSuccessCode(String url)
[xUnit.net 00:00:02.61]         --- End of stack trace from previous location where exception was thrown ---

edit

Не очень понятномне, где / почему я получаю нулевую ссылку, потому что, насколько я могу судить, моя OpenIdConnectOptions конфигурация верна (и она работает с AAD SSO).

Answer 1

Оказывается, это потому, что я не вызвал .Build() для моего ConfigurationBuilder объекта, который я создал, И присвоил значение полю Configuration внутри класса Startup. Это также означало, что я переместил код для включения секретов в конструктор Startup.

Несмотря на это, мои секреты все еще не были доступны на сборочной машине (имеет смысл, потому что они хранятся на машине ). Поэтому мне пришлось добавить задачу командной строки в свой конвейер сборки, которая использует команду dotnet user-secrets set для добавления секретов, необходимых для тестов.

Answer 2

Возможно ли, что вы пропустили раздел конфигурации AzureAd из вашего файла производственных настроек?то есть appsettings.json против appsettings.Development.json