Write manual Parallel.For to await test result #44528
Merged
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Recently the
TraceIdentifierIsUniquetest failed on CI, see a previous failure #21118.Decided to take a look, noticed that we were using
Parallel.Forwith an async action (which is basicallyasync void). My hypothesis is that theParallel.Foractions could still be running while the test method completes and closes the server, resulting in errors on the background thread.Ran the test 10000 times before: reproduced the failure
Ran the test 20000 times after: did not get any failures