[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3600: allmydata.test.common.*TestCase have broken skip/cleanup interaction

[Tahoe-LAFS]

#3600: allmydata.test.common.*TestCase have broken skip/cleanup interaction
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     Reporter:  exarkun  |      Owner:
         Type:  defect   |     Status:  new
     Priority:  normal   |  Milestone:  undecided
    Component:  unknown  |    Version:  n/a
   Resolution:           |   Keywords:
Launchpad Bug:           |
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Comment (by exarkun):

 It seems like the solution may be to stop using cleanups for this cleanup.

 Instead, rely on the fact that `testtools.runtest.RunTest.run` is actually
 a synchronous interface (even in the case of AsyncTestCase).  This means
 we can just use try/finally to manage cleanups.

 As a bonus, this probably makes a lot of the code simpler.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3600#comment:1>
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