Mocking WebResponse’s from a WebRequest

I found this question while looking to do exactly the same thing. Couldn’t find an answer anywhere, but after a bit more digging found that the .Net Framework has built in support for this.

You can register a factory object with WebRequest.RegisterPrefix which WebRequest.Create will call when using that prefix (or url). The factory object must implement IWebRequestCreate which has a single method Create which returns a WebRequest. Here you can return your mock WebRequest.

I’ve put some sample code up at

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