[9.0] Values differ assert failure in Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided

[carlossanlop]

Build Information

Build: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1004743
Build error leg or test failing: Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided

Error Message

{
  "ErrorMessage" : "HostTests.cs(686,0): at Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided()",
  "BuildRetry" : false,
  "ExcludeConsoleLog" : false
}

• PR: [automated] Merge branch 'release/9.0' => 'release/9.0-staging' #114224
• Queue: Libraries Test Run release coreclr windows x64 Release
• Job result: https://dev.azure.com/dnceng-public/public/_build/results?buildId=1004743&view=logs&j=cb76e204-ba8f-557d-eba6-9896b4f24865&t=eb49831a-0dd7-5a42-9e0c-55c34d358e3a&l=101
• Log file: https://helixr1107v0xd1eu3ibi6ka.blob.core.windows.net/dotnet-runtime-refs-heads-release-90-ac65edc8347440bfba/Microsoft.Extensions.Hosting.Unit.Tests/1/console.dc9404d8.log?helixlogtype=result
• Output:

===========================================================================================================

C:\h\w\B94409DD\w\ACDC0978\e>"C:\h\w\B94409DD\p\dotnet.exe" exec --runtimeconfig Microsoft.Extensions.Hosting.Unit.Tests.runtimeconfig.json --depsfile Microsoft.Extensions.Hosting.Unit.Tests.deps.json xunit.console.dll Microsoft.Extensions.Hosting.Unit.Tests.dll -xml testResults.xml -nologo -nocolor -notrait category=IgnoreForCI -notrait category=OuterLoop -notrait category=failing  
  Discovering: Microsoft.Extensions.Hosting.Unit.Tests (method display = ClassAndMethod, method display options = None)
  Discovered:  Microsoft.Extensions.Hosting.Unit.Tests (found 173 of 179 test cases)
  Starting:    Microsoft.Extensions.Hosting.Unit.Tests (parallel test collections = on [2 threads], stop on fail = off)
    Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided [FAIL]
      Assert.Equal() Failure: Values differ
      Expected: Task<VoidTaskResult,<StopAsync>d__16> { Status = RanToCompletion }
      Actual:   Task { Status = RanToCompletion }
      Stack Trace:
        /_/src/libraries/Microsoft.Extensions.Hosting/tests/UnitTests/Internal/HostTests.cs(686,0): at Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided()
        --- End of stack trace from previous location ---
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\h\w\B94409DD\w\ACDC0978\e
info: Microsoft.Hosting.Lifetime[0]
      Application is shutting down...
info: Microsoft.Extensions.Hosting.Tests.HostTests[0]
      Request starting
  Finished:    Microsoft.Extensions.Hosting.Unit.Tests
=== TEST EXECUTION SUMMARY ===
   Microsoft.Extensions.Hosting.Unit.Tests  Total: 245, Errors: 0, Failed: 1, Skipped: 0, Time: 21.725s
----- end Fri 04/04/2025  0:09:29.02 ----- exit code 1 ----------------------------------------------------------

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=1004743
Error message validated: [HostTests.cs(686,0): at Microsoft.Extensions.Hosting.Internal.HostTests.WebHostStopAsyncUsesDefaultTimeoutIfNoTokenProvided()]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 4/7/2025 6:00:52 PM UTC

Report

Summary

24-Hour Hit Count	7-Day Hit Count	1-Month Count
0	0	0

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[steveharter]

This appears to be a timeout. I don't think we need to change the test unless we get some more hits.

For a repro, decrease the timeout on the LOC, such as to .01 here

runtime/src/libraries/Microsoft.Extensions.Hosting/tests/UnitTests/Internal/HostTests.cs

Line 686 in 9f7bc7e

Assert.Equal(task, await Task.WhenAny(task, Task.Delay(TimeSpan.FromSeconds(10))));

Assert.Equal(task, await Task.WhenAny(task, Task.Delay(TimeSpan.FromSeconds(.01))));