HttpRequestMessage未在Web API服务的内存托管中在Autofac中注册

Question

我试图使用内存托管为ASP.Net Web API服务创建集成测试。 我们正在使用Autofac作为我们的DI工具。

服务中的部分逻辑需​​要HttpRequestMessage。 在内存中方案中，该对象未注册，但在IIS托管中。

测试设置：

var builder = new ContainerBuilder();
var config = GlobalConfiguration.Configuration;

builder.RegisterHttpRequestMessage(config);
builder.RegisterWebApiFilterProvider(config);

var configurator = new AutofacConfigurator();
configurator.Configure(builder); // this does the individual registrations

var container = builder.Build();
config.DependencyResolver = new AutofacWebApiDependencyResolver(container);

var controller = typeof(DocumentController);
var config = new HttpConfiguration();
config.Routes.MapHttpRoute("DefaultApi", "v1/{controller}/search/{id}", new { id = RouteParameter.Optional });
config.IncludeErrorDetailPolicy = IncludeErrorDetailPolicy.Always;

var resolver = new AutofacWebApiDependencyResolver(container);

var server = new HttpServer(config);
server.Configuration.DependencyResolver = resolver;
var messageInvoker = new HttpMessageInvoker(new InMemoryHttpContentSerializationHandler(server));

var search = new SearchModel { 
    // ... snip ...
};

HttpMessageInvoker messageInvoker = ConfigureServer();
HttpRequestMessage request = ConfigureRequest(search);

using (HttpResponseMessage response = messageInvoker.SendAsync(request, new CancellationTokenSource().Token).Result)
{
    var responseBodyAsText = response.Content.ReadAsStringAsync();
    var result = response.Content.ReadAsAsync<ApplicationSearchResult>();
    var parsed = result.Result;
    Assert.IsTrue(result.Result.Messages.Any(r => r.Equals("...", StringComparison.OrdinalIgnoreCase)));
}

ConfigureRequest方法：

private static HttpRequestMessage ConfigureRequest(SearchModel search)
{
    string baseAddress = "http://dummyname/";

    HttpRequestMessage request = new HttpRequestMessage();
    request.Content = new ObjectContent<SearchModel>(search, new JsonMediaTypeFormatter());
    request.RequestUri = new Uri(baseAddress + "v1/Document/search");
    request.Headers.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
    request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", Initialization.oauthToken);
    request.Method = HttpMethod.Post;
    return request;
}

尝试使用HttpRequestMessage（来自AutofacConfigurator）：

container.Register(x =>
{
    if (x.IsRegistered<HttpRequestMessage>()) // false for in memory, true for IIS
    {
        var httpRequestMethod = x.Resolve<HttpRequestMessage>();

        var tokenHelper = x.Resolve<ITokenHelper>();
        var token = tokenHelper.GetToken(httpRequestMethod);

        var connectionContext = x.Resolve<ISqlServerConnectionContext>();
        connectionContext.Token = token;

        return token ?? new NullMinimalSecurityToken();
    }

    return new NullMinimalSecurityToken();
}).As<IMinimalSecurityToken>().InstancePerApiRequest();

有什么方法可以在内存中注册HttpRequestMessage？

Answer 1

因此，解决方案很容易（非常容易）。 在测试中创建HttpRequestMessage之后，将其注册到容器中：

var newBuilder = new ContainerBuilder();
newBuilder.Register(c => request).As<HttpRequestMessage>();

newBuilder.Update(_container);