Unit Testing ASP.NET Web API

问题

I'm unit testing a simple post:

public HttpResponseMessage<Document> PostDocument(Document document) 
{
    document = repository.Add(document); 

    var response = new HttpResponseMessage<Document>(document, HttpStatusCode.Created); 

    var uri = Url.Route(null, new { id = document.Id }); 

    response.Headers.Location = new Uri(Request.RequestUri, uri); 

    return response; 
}

However, the 'URL' and 'Request' are obviously going to be null.

Is there an alternative to mocking out ControllerContext and HttpContext?

Update:

Changed it to:

 public HttpResponseMessage<Document> PostDocument(Document document,Uri location = null) 
{
    document = repository.Add(document); 

    var response = new HttpResponseMessage<Document>(document, HttpStatusCode.Created);

    if (location == null)
    {
        var uri = Url.Route(null, new { id = document.Id });
        location = new Uri(Request.RequestUri, uri);
    }

    response.Headers.Location = location;

    return response; 
}

Update 2:

This is better:

public HttpResponseMessage<Document> PostDocument(Document document)
{
    var uri = Url.Route(null, new { id = document.Id });
    var location = new Uri(Request.RequestUri, uri);

    return PostDocument(document, location);
}

[NonAction]
public HttpResponseMessage<Document> PostDocument(Document document, Uri location) 
{
    document = repository.Add(document); 

    var response = new HttpResponseMessage<Document>(document, HttpStatusCode.Created);
    response.Headers.Location = location;
    return response; 
}

回答1:

The Request property should be settable, so you only have to set the ControllerContext (which should have a no-arg constructor so you shouldn't even have to mock).

回答2:

Using FakeItEasy I got it to work doing this in the TestInitialize.

this.Controller.ControllerContext = new System.Web.Http.Controllers.HttpControllerContext();
this.Controller.Request = A.Fake<HttpRequestMessage>();

回答3:

Your method might recieve HttpRequestMessage as parameter.

 public HttpResponseMessage<Document> PostDocument(Document document, HttpRequestMessage message)
{

}

You can take RequestUri from it. In your unit tests you can put test double of HttpRequestMessage object.

来源：https://stackoverflow.com/questions/9483663/unit-testing-asp-net-web-api

标签

unit-testing

asp.net-web-api

moq