Net Core 集成测试:从其他程序运行 Startup.cs 和配置 [英] Net Core Integration Test: Run Startup.cs and Configuration from other Program

问题描述

我们正在创建一个集成单元测试 (Xunit)，它调用 Real Application Startup.cs.

We are creating an Integration Unit test (Xunit), which is calling the Real Application Startup.cs.

出于某种原因，真实项目可以正确读取配置文件/属性，但是从集成测试运行它，它无法读取它.它没有将任何内容放入下面的配置(conf)变量中.我将如何解决这个问题?原因是它没有读取是它没有读取来自 Net Core 2.2 的内部依赖注入新的读取配置文件.现在尝试使用 .CreateDefaultBuilder.

For some reason, Real project can read Configuration file/property correctly, however running it from the Integration test, it cannot read it. Its not placing anything into Configuration (conf) variable below. How would I resolve this? The reason is its not picking up is its not reading the internal dependency injection new from Net Core 2.2 which reads Configuration file. Trying to use .CreateDefaultBuilder Now.

IntegrationTest1.cs

        TestServer _server = new TestServer(new WebHostBuilder() .UseContentRoot("C:\RealProject\RealProject.WebAPI")
            .UseEnvironment("Development")
            .UseConfiguration(new ConfigurationBuilder()
            .SetBasePath("C:\RealProject\RealProject.WebAPI")
                .AddJsonFile("appsettings.json")
                .Build())
                .UseStartup<Startup>()
            .UseStartup<Startup>());

真实项目 Startup.cs

    public Startup(IConfiguration configuration, IHostingEnvironment hostingEnvironment)
    {
        Configuration = configuration;
        HostingEnvironment = hostingEnvironment;
    }

    public IHostingEnvironment HostingEnvironment { get; }
    public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public IServiceProvider ConfigureServices(IServiceCollection services)
    {

        var conf = Configuration;
        IConfiguration appConf = conf.GetSection("ConnectionStrings");
        var connstring = appConf.GetValue<string>("DatabaseConnection");

        services.AddDbContext<DbContext>(a => a.UseSqlServer(connstring));

Appsettings.Json

Appsettings.Json

{
  "Logging": {
    "LogLevel": {
      "Default": "Warning"
    }
  },
  "ConnectionStrings": {
    "DatabaseConnection": "Data Source=.;Initial Catalog=ApplicationDatabase;Integrated Security=True"
  }
}

推荐答案

您想要做的是为您的 WebApplication 创建一个工厂，它采用 Startup 类型.然后，您可以使用 IClassFixture 界面进行共享此工厂的上下文以及测试类中的所有测试.

What you want to do is create a Factory for your WebApplication which takes a Startup type. You can then use the IClassFixture interface to share the context of this factory with all of your tests in your test class.

实际情况如下:

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>();
    }
}


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
        response.EnsureSuccessStatusCode();
    }
}

我遵循了这里的指南 让它在我自己的代码中工作.

I followed the guide here to get this working in my own code.

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