Question

我有以下控制器操作

public void Post(Dto model)
{
    using (var message = new MailMessage())
    {
        var link = Url.Link("ConfirmAccount", new { model.Id });

        message.To.Add(model.ToAddress);
        message.IsBodyHtml = true;
        message.Body = string.Format(@"<p>Click <a href=""{0}"">here</a> to complete your registration.<p><p>You may also copy and paste this link into your browser.</p><p>{0}</p>", link);

        MailClient.Send(message);
    }
}

要测试这个，我需要设置控制器上下文

var httpConfiguration = new HttpConfiguration(new HttpRouteCollection { { "ConfirmAccount", new HttpRoute() } });
var httpRouteData = new HttpRouteData(httpConfiguration.Routes.First());
var httpRequestMessage = new HttpRequestMessage(HttpMethod.Post, "http://localhost");
sut = new TheController
{
    ControllerContext = new HttpControllerContext(httpConfiguration, httpRouteData, httpRequestMessage),
    MailClient = new SmtpClient { PickupDirectoryLocation = location }
};

这似乎是很多设置来测试链接的创建。有更清洁的方法吗？我已经阅读过关于内存服务器的内容，但看起来它比httpclient更适用于直接测试控制器。

Answer 1

我开始在Web API 2.0中使用这种方法。

如果你正在使用模拟库（并且你真的应该用于任何真实世界的单元测试），你可以直接模拟UrlHelper对象，因为它上面的所有方法都是{{1 }}

virtual

这是比Ben Foster的答案更清晰的解决方案，因为在这种方法中，您需要为每个您正在使用的名称添加路线到配置。这可能很容易改变，或者是一个可笑的大量路线。

Answer 2

以下是在没有任何类型的模拟库的情况下测试UrlHelper所需的绝对最小代码。扔我（并花了我一些时间追踪）的事情是你需要设置请求的IHttpRouteData。如果不这样做，IHttpRoute实例将无法生成导致空URL的虚拟路径。

    public class FooController : ApiController
    {
        public string Get()
        {
            return Url.Link(RouteNames.DefaultRoute, new { controller = "foo", id = "10" });
        }
    }

    [TestFixture]
    public class FooControllerTests
    {
        FooController controller;

        [SetUp]
        public void SetUp()
        {
            var config = new HttpConfiguration();

            config.Routes.MapHttpRoute(
                name: "Default",
                routeTemplate: "api/{controller}/{id}",
                defaults: new { id = RouteParameter.Optional });

            var request = new HttpRequestMessage(HttpMethod.Get, "http://localhost");
            request.Properties[HttpPropertyKeys.HttpConfigurationKey] = config;
            request.Properties[HttpPropertyKeys.HttpRouteDataKey] = new HttpRouteData(new HttpRoute());

            controller = new FooController
            {
                Request = request
            };
        }

        [Test]
        public void Get_returns_link()
        {
            Assert.That(controller.Get(), Is.EqualTo("http://localhost/api/foo/10"));
        }
    }

Answer 3

我遇到了同样的白痴。我能找到的所有引用都希望你模拟请求/控制器，这是（如你所指出的）很多工作。

具体参考：

我还没有尝试过实际的Mocking框架，所以我有一个帮助类来构建＆＃34;构建＆＃34;我的控制器。而不是

sut = new TheController { ... }

我用的是：

// actually rolled together to `sut = MyTestSetup.GetController(method, url)`
sut = new TheController()...
MyTestSetup.FakeRequest(sut, HttpMethod.Whatever, "~/the/expected/url");

作为参考，该方法基本上是：

public void FakeRequest(ApiController controller, HttpMethod method = null, string requestUrl = null, string controllerName = null) {
    HttpConfiguration config = new HttpConfiguration();
    // rebuild the expected request
    var request = new HttpRequestMessage( null == method ? this.requestMethod : method, string.IsNullOrWhiteSpace(requestUrl) ? this.requestUrl : requestUrl);
    //var route = System.Web.Routing.RouteTable.Routes["DefaultApi"];
    var route  = config.Routes.MapHttpRoute("DefaultApi", "api/{controller}/{id}");

    // TODO: get from application?  maybe like https://stackoverflow.com/a/5943810/1037948
    var routeData = new HttpRouteData(route, new HttpRouteValueDictionary { { "controller", string.IsNullOrWhiteSpace(controllerName) ? this.requestController : controllerName } });

    controller.ControllerContext = new HttpControllerContext(config, routeData, request);

    // attach fake request
    controller.Request = request;
    controller.Request.Properties[/* "MS_HttpConfiguration" */ HttpPropertyKeys.HttpConfigurationKey] = config;
}

测试WebApi控制器Url.Link

3 个答案: