[py-dev] merging new distributed testing approach

[holger krekel]

Hi folks, 

Maciej Fijalkowski (as part of his Summer of PyPy involvement)
and me nicely sprinted in Ireland a couple of days on evolving
py.test to perform ad-hoc distributed testing.  The work is
living in this branch 

    https://codespeak.net/svn/py/branch/distributed 

and incorporates a partial rewrite of the session and reporting 
logic.  With "py.test --session=R" the new 
py/test/resssion/rsession.py's RSession will come into play
and distribute tests to a number of ssh-address specified 
hosts.  The ssh-hosts need to be specified in a conftest.py 
with "disthosts=['sshaddress1', 'sshaddress2', ...]" 
The new session object does not implement all the 
TerminalSession's options yet. 

As only a few refactorings/refinements were needed in the rest 
of the py lib, and the current py.test logic continues to be 
in effect by default, Maciej and me intend to merge the 
branch this week to simplify development and have more early
users.  

If you notice any behaviour regressions for the still non-distributed 
py.test default running, please notify here on the list or on the issue
tracker.  It then remains to be seen when/how we declare the
non-distributed case a special case of the distributed one. 

best, 

    holger

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