IServerSideEvents 的 IOC 注入

Question

我正在为我的 IOC 编写单元测试。我的接口之一注入了 IServerEvents。

我通过以下方式包括事件：

  ServerEventsFeature serverEventsFeature = new ServerEventsFeature()
            {
                LimitToAuthenticatedUsers = false,
                NotifyChannelOfSubscriptions = false,
                OnConnect = (eventSubscription, dictionary) =>
                {
                },
                OnSubscribe = (eventSubscription) =>
                {
                }
            };

然而，container.Resolve调试时出现以下错误（未通过单元测试）：

'container.Resolve<IServerEvents>()' threw an exception of type 'System.Exception'
    Data: {System.Collections.ListDictionaryInternal}
    HResult: -2146233088
    HelpLink: null
    InnerException: {System.InvalidOperationException: No service for type 'ServiceStack.IServerEvents' has been registered.
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService(IServiceProvider provider, Type serviceType)
   at Microsoft.Extensions.DependencyInjection.ServiceProviderServiceExtensions.GetRequiredService[T](IServiceProvider provider)
   at Funq.Container.ResolveImpl[TService](String name, Boolean throwIfMissing)}
    Message: "Error trying to resolve Service 'ServiceStack.IServerEvents' or one of its autowired dependencies (see inner exception for details)."
    Source: "ServiceStack"
    StackTrace: "   at Funq.Container.ResolveImpl[TService](String name, Boolean throwIfMissing)"
    TargetSite: {TService ResolveImpl[TService](System.String, Boolean)}

这在正常使用中确实有效，但界面的手动解析无效。

我想知道的是：

A) 对这种服务器事件集成进行单元测试的正确方法

B) 我是否应该在单元测试中使用 RegisterAs<>() 模拟容器上的 IServerEvents

C) 为什么注入工作正常但 container.Resolve() 失败。

欢迎任何反馈。

Answer 1

您不能在单元测试中使用 ServerEventsFeature，您只能在 integration test. You can find some working examples in ServerEventTests.

中使用它

由于ServerEventsFeature是插件，需要注册为插件才能使用：

Plugins.Add(new ServerEventsFeature { ... });

插件注册后会register the MemoryServerEvents dependency:

container.Register<IServerEvents>(memoryServerEvents);

IServerSideEvents 的 IOC 注入

IOC injection of IServerSideEvents

c#

unit-testing

xunit

servicestack