[tor-bugs] #18668 [Core Tor/Tor]: Numerous WSAStartup warnings in unit tests on windows

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#18668: Numerous WSAStartup warnings in unit tests on windows
-------------------------------------------------+-------------------------
 Reporter:  nickm                                |          Owner:  nickm
     Type:  defect                               |         Status:
 Priority:  Medium                               |  accepted
Component:  Core Tor/Tor                         |      Milestone:  Tor:
 Severity:  Minor                                |  0.2.9.x-final
 Keywords:  tor-tests-coverage, tor-tests-unit,  |        Version:
  TorCoreTeam201605                              |     Resolution:
Parent ID:                                       |  Actual Points:
 Reviewer:                                       |         Points:  small
                                                 |        Sponsor:
                                                 |  SponsorS-can
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Comment (by nickm):

 Semi-canonical example:

 https://jenkins.torproject.org/job/tor-ci-mingwcross-0.2.8-test-
 native/15/console
 https://jenkins.torproject.org/job/tor-ci-mingwcross-master-test-
 native/27/console

 Specifically:

 {{{
 13:00:48 + RESULT/bin/test
 13:00:50 onion_handshake: OK
 13:00:50 bad_onion_handshake: OK
 13:00:50 onion_queues: OK
 13:00:50 ntor_handshake: OK
 13:00:50 circuit_timeout: [forking] [warn] evsig_init: socketpair:
 Successful WSAStartup not yet performed [WSANOTINITIALISED ]
 13:00:51 OK
 13:00:51 rend_fns: [forking] [warn] evsig_init: socketpair: Successful
 WSAStartup not yet performed [WSANOTINITIALISED ]
 13:00:51 OK
  ...
 }}}

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/18668#comment:5>
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