[Twisted-web] Separate function for relative redirects in HTTPClientFactory

Aaron DeVore aaron.devore at gmail.com
Thu Mar 5 13:53:23 EST 2009

I don't think those would cover what I need. From what I can tell both
of those only test the outgoing headers from a request. The fix I'm
working on handles an invalid response from the server. The code that
I wrote would never even come close to running.

On Thu, Mar 5, 2009 at 10:27 AM, David Reid <dreid at dreid.org> wrote:
> I would suggest rewriting the test cases so you don't need to use an
> internal webserver.  You really just need to be able to send blobs of data
> to the HTTP client that contain different response codes and Location
> headers.
> I believe there are already some tests in twisted.web.test.test_webclient
> that do this, such as:
> http://twistedmatrix.com/trac/browser/trunk/twisted/web/test/test_webclient.py#L172
> http://twistedmatrix.com/trac/browser/trunk/twisted/web/test/test_webclient.py#L711
> Plus there are numerous other examples in twisted of not relying on even the
> loopback network interface for tests.
> -David
> On Thu, Mar 5, 2009 at 9:27 AM, Aaron DeVore <aaron.devore at gmail.com> wrote:
>> Last night I restarted my work on relative redirects in
>> HTTPClientFactory (Ticket #3384). What I had forgotten was how
>> insanely difficult it is to write the test cases, which would then be
>> significantly more bug prone than the code itself. The problem is that
>> for every possible input I need to add (1) A test_* function, (2) a
>> callback, (3) one or more children to the internal web server for the
>> test_* function to connect to.
>> This morning I hit on another idea: Why not separate the code in
>> HTTPClientFactory that does the fix into a separate function? Then
>> there could be one test case to make sure the code in
>> HTTPClientFactory works, then a single test case that contains a
>> series of assertEquals that test the output of the function. How does
>> that sound? Should I put it outside of HTTPClientFactory or inside?
>> Cheers!
>> Aaron DeVore
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