A lot of respondents missed the point of what I was trying to say,
which was that with the tests I'm writing I'm not free to rewrite the
code being tested. If I was, sure, I would be abstracting the ugliness
away into some interfaces that are mockable. But unfortunately I
didn't write the code I'm testing, and the tests I'm writing are an
exercise 'after the fact' to prove that the code is OK and to create a
body of unit tests for it. So I'm stuck with it not having any of its
calls to HttpContext abstracted into mockable interfaces.
Having said that, testing went very smoothly using HttpSimulator. The
structure of the tests I wrote were basically (in VB.Net):
using (new HttpSimulator("/", @"c:\inetpub\").SimulateRequest())
mocks = new MockRepository()
' use Rhino Mocks to mock any objects in the test code that are
possible
mocks.ReplayAll()
' there may be calls to HttpContext in this method, but they'll work
fine because the call's wrapped in the HttpSimulator using statement
testController.RunSomeMethod()
' use assert statements to check the outcome of the code tested
Assert.IsTrue(<stuff that can be verified>)
' Check that everything that had an expectation set up for it in
Rhino Mocks has been called as per the expectation
mocks.VerifyAll()
end using
I had a couple of extra problems - even with the HttpSimulator
working, a couple of things in HttpContext were null. From memory it
was HttpContext.Current.Handler. I had to create a Page object and a
Response object, assign the Response to the Page via Reflection (it's
a readonly property) and assign the Page as the
HttpContext.Current.Handler object to get past that small glitch. But
overall, I'd highly recommend using HttpSimulator if you're stuck not
being able to abstract away calls to HttpContext in the code you're
testing.
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