[Twisted-Python] Unit test

[RITA Y/O RODRIGO DIAZ Y/O BENENSON]

Short question,
which is the adecuate way of doing unit test of a sequence of defered events ? one chained to the other.

If each deferred need a callback method, I have already more that thirty functiones defined, and each time I need more.

How to do it ?

defered = something

<the magic>

defered = the_next_thing # that need the previous defered to have been acomplished

etc...

I can imagine various tricks, but I supose there is a standart way. 

Thanks.
RodrigoB.