[tor-bugs] #30012 [Core Tor/Stem]: When stem receives a signal, log useful information

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#30012: When stem receives a signal, log useful information
---------------------------+--------------------------
 Reporter:  teor           |          Owner:  teor
     Type:  defect         |         Status:  assigned
 Priority:  Medium         |      Milestone:
Component:  Core Tor/Stem  |        Version:
 Severity:  Normal         |     Resolution:
 Keywords:  tor-needs      |  Actual Points:
Parent ID:  #29437         |         Points:
 Reviewer:                 |        Sponsor:
---------------------------+--------------------------
Changes (by teor):

 * owner:  atagar => teor
 * status:  new => assigned


Comment:

 See my pull request:
 https://github.com/torproject/stem/pull/11

 When I run:
 {{{
 $ make test-stem
 ...
 $ killall -USR1 <run_tests.py pid>
 }}}

 I see:
 {{{
   control.controller...                               Signal 30 received.
 Traceback:
   File "/Users/base/stem/run_tests.py", line 398, in <module>
     main()
   File "/Users/base/stem/run_tests.py", line 239, in main
     run_result = _run_test(args, test_class, output_filters)
   File "/Users/base/stem/run_tests.py", line 379, in _run_test
     run_result = stem.util.test_tools.TimedTestRunner(test_results,
 verbosity = 2).run(suite)
   File "/Users/base/stem/stem/util/test_tools.py", line 308, in run
     return super(TimedTestRunner, self).run(test)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/runner.py",
 line 176, in run
     test(result)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/suite.py",
 line 84, in __call__
     return self.run(*args, **kwds)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/suite.py",
 line 122, in run
     test(result)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py",
 line 663, in __call__
     return self.run(*args, **kwds)
   File "/Users/base/stem/stem/util/test_tools.py", line 258, in run
     result = super(type(self), self).run(result)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py",
 line 615, in run
     testMethod()
   File "/Users/base/stem/test/require.py", line 58, in wrapped
     return func(self, *args, **kwargs)
   File "/Users/base/stem/test/require.py", line 58, in wrapped
     return func(self, *args, **kwargs)
   File "/Users/base/stem/test/integ/control/controller.py", line 538, in
 test_with_invalid_ephemeral_hidden_service_port
     self.assertRaisesWith(stem.ProtocolError, exc_msg,
 controller.create_ephemeral_hidden_service, ports)
   File "/Users/base/stem/stem/util/test_tools.py", line 288, in
 assertRaisesWith
     return self.assertRaisesRegexp(exc_type, '^%s$' % re.escape(exc_msg),
 func, *args, **kwargs)
   File "/Users/base/stem/stem/util/test_tools.py", line 298, in
 assertRaisesRegexp
     return super(original_type, self).assertRaisesRegexp(exc_type,
 exc_msg, func, *args, **kwargs)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py",
 line 1338, in deprecated_func
     return original_func(*args, **kwargs)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py",
 line 1285, in assertRaisesRegex
     return context.handle('assertRaisesRegex', args, kwargs)
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/unittest/case.py",
 line 178, in handle
     callable_obj(*args, **kwargs)
   File "/Users/base/stem/stem/control.py", line 3099, in
 create_ephemeral_hidden_service
     response = self.msg(request)
   File "/Users/base/stem/stem/control.py", line 654, in msg
     response = self._reply_queue.get()
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/queue.py",
 line 170, in get
     self.not_empty.wait()
   File
 "/usr/local/Cellar/python/3.7.3/Frameworks/Python.framework/Versions/3.7/lib/python3.7/threading.py",
 line 296, in wait
     waiter.acquire()
 }}}

 The control.controller test doesn't hang for me, but the stacktrace looks
 promising.

--
Ticket URL: <https://trac.torproject.org/projects/tor/ticket/30012#comment:6>
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