[issue5679] cleanUp stack for unittest
Michael Foord
report at bugs.python.org
Sun Apr 5 22:36:00 CEST 2009
Michael Foord <michael at voidspace.org.uk> added the comment:
I'm in favour of running clean ups afterwards on the basis that it makes
things possible that would otherwise not be possible.
> If your cleanup relies on something which has been set up during setUp
> and will be dropped during tearDown (a database connection, a temp dir,
> an ssh session, whatever), then the cleanup must be run before the
> teardown.
But this is a function of whichever way we do it - and so not an
argument for one way or the other. Conversely if you write a tearDown
that relies on resources existing that will later be removed by a clean
up then clean ups must be run afterwards.
> The point is that sequence 2 can already be emulated using careful
> "try...finally" in tearDown, while sequence 1 cannot. That is, sequence
> 1 *needs* the addCleanup, while for sequence 2 it is a mere additional
> convenience.
Which is an argument in favour of running clean ups afterwards.
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