test: Fix unregister_all_during_call cleanup #18563

1. 
   ryanofsky commented at 2:18 pm on April 8, 2020: member

   Use TestingSetup fixture to fix unregister_all_during_call test not calling UnregisterBackgroundSignalScheduler, which could trigger an assert in RegisterBackgroundSignalScheduler when called in later tests

   Failure reported by fanquake #18551 (comment)

2. Fix unregister_all_during_call cleanup

   Use TestingSetup fixture to fix unregister_all_during_call test not calling
   UnregisterBackgroundSignalScheduler, which could trigger an assert in
   RegisterBackgroundSignalScheduler when called in later tests
   
   Failure reported by fanquake <fanquake@gmail.com>
   https://github.com/bitcoin/bitcoin/pull/18551#issuecomment-610974251

   13d2a33537
3. 
   MarcoFalke commented at 2:26 pm on April 8, 2020: member

   ACK 13d2a33537a403ac47a989be92109d3214375b6a if appveyor unit tests pass
4. fanquake added the label Tests on Apr 8, 2020
5. MarcoFalke merged this on Apr 8, 2020
6. MarcoFalke closed this on Apr 8, 2020

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7. deadalnix referenced this in commit 6f74431345 on Jun 20, 2020
8. DrahtBot locked this on Feb 15, 2022

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ryanofsky MarcoFalke

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