Off topic: Python unit testing tools

This question is slightly off-topic, but I couldn't think of a
better-informed collection of agile Pythonistas to ask...

I'm currently working on a project using Python for a kind of embedded
web computing - web technologies in home- and building control type
applications.  (I hope this will lead to SWeb applications for things
like calendar integration, but that's all speculative and for the future.)

I'm working on drawing the software development into a test-led
discipline, and am wondering if anyone has any knowledge of any Python
equivalents to Mock object, XMLUnit and HTTPUnit libraries available in
Java?  Even if they're only very embryonic, I'd much rather throw my
efforts into supporting an existing project than trying to create new
libraries.

#g

-- 
Graham Klyne
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http://www.ninebynine.org/#Contact