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[Robert Collins <662648@xxxxxxxxxxxxxxxxxx>]

** Changed in: testtools
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/662648

Title:
  Better support for debugging unhandled errors in Deferreds

Status in testtools:
  Fix Released

Bug description:
  AsynchronousDeferredRunTest has support for trapping unhandled errors in Deferreds and then reporting them as extra tracebacks.

It would be very useful if it also reported the creator and invoker tracebacks for those deferreds when they are available.  When they are not available it would be useful to tell the user that they can get creator and invoker tracebacks by enabling deferred debugging.