在集成测试期间从 HostingStartup 获取服务集合

如何解决在集成测试期间从 HostingStartup 获取服务集合

我正在编写集成测试并遇到一个问题，因此无法获取所有服务的集合。

我有一个继承自 IHostingStartup 的 HostingInitialization 类。我需要获取在那里创建的整个服务集合。

我的 HostingInitialization 类：

[assembly: HostingStartup(typeof(MyProject.Bootstrap.HostingInitialization))]
namespace MyProject.Bootstrap
{
    public class HostingInitialization : IHostingStartup
    {
        
        public void Configure(IWebHostBuilder builder)
        {
            builder.ConfigureServices((context,services) =>
            {
                services.Configure<MongoOptions>(context.Configuration.GetSection(MongoOptions.JsonKey));
                services.AddHttpContextAccessor();
            });
        }
    }
}

我的测试课：

[SetUpFixture]
public class Testing
{
    private static IConfigurationRoot _configuration;
    private static IServiceScopeFactory _scopeFactory;
    private static IWebHostEnvironment _webHostEnvironment;

    [OneTimeSetUp]
    public void RunBeforeAnyTests()
    {
        var builder = new ConfigurationBuilder()
            .SetBasePath(Directory.GetCurrentDirectory())
            .AddJsonFile("appsetting.json",true,true)
            .AddEnvironmentVariables();
        _configuration = builder.Build();
        _webHostEnvironment = Mock.Of<IWebHostEnvironment>(h => h.EnvironmentName == "Production");

        var startup = new Startup(_webHostEnvironment,_configuration);
        var services = new ServiceCollection();

        services.AddSingleton(Mock.Of<IWebHostEnvironment>(w =>
            w.EnvironmentName == "Production" &&
            w.ApplicationName == "MyProject.Api"));
        services.AddLogging();

        startup.ConfigureServices(services);

        _scopeFactory = services.BuildServiceProvider().GetService<IServiceScopeFactory>();
    }

    public static async Task<TResponse> SendAsync<TResponse>(IRequest<TResponse> request)
    {
        using var scope = _scopeFactory.CreateScope();

        var mediator = scope.ServiceProvider.GetService<IMediator>();

        return await mediator.Send(request);
    }
}

如何获得所有服务的完整集合？目前，我仅使用 Startup 类中的 ConfigureServices 方法获取服务集合。