[tor-bugs] #27810 [Core Tor/Tor]: hs_service/helper_functions test seems unreliable on slow systems

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#27810: hs_service/helper_functions test seems unreliable on slow systems
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 Reporter:  nickm         |          Owner:  (none)
     Type:  defect        |         Status:  new
 Priority:  Medium        |      Milestone:  Tor: 0.3.5.x-final
Component:  Core Tor/Tor  |        Version:
 Severity:  Normal        |     Resolution:
 Keywords:                |  Actual Points:
Parent ID:                |         Points:
 Reviewer:                |        Sponsor:
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Description changed by nickm:

Old description:

> Hi!  I've seen this test failure a few times on Travis:
>
> {{{
> hs_service/helper_functions: [forking]
>   FAIL src/test/test_hs_service.c:837: assert(ip->time_to_expire OP_GE
> now + INTRO_POINT_LIFETIME_MIN_SECONDS): 1537602275 vs 1537602297
>   [helper_functions FAILED]
> }}}
>
> It seems to happen intermittently, so I think it might be one of those
> things where a slow-running machine fails the test because of the
> unexpected passage og time.
>
> Is it possible to mock time here?

New description:

 Hi!  I've seen this test failure a few times on Travis:

 {{{
 hs_service/helper_functions: [forking]
   FAIL src/test/test_hs_service.c:837: assert(ip->time_to_expire OP_GE now
 + INTRO_POINT_LIFETIME_MIN_SECONDS): 1537602275 vs 1537602297
   [helper_functions FAILED]
 }}}

 It seems to happen intermittently, so I think it might be one of those
 things where a slow-running machine fails the test because of the
 unexpected passage of time.

 Is it possible to mock time here?

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/27810#comment:1>
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