Test failure System.Linq.Parallel.Tests.ParallelQueryCombinationTests.SequenceEqual_OperationCanceledException(operation: SelectMany-ResultSelector)

[VincentBu]

Run: runtime-libraries-coreclr outerloop 20211018.5

Failed test:

net7.0-OSX-Release-arm64-CoreCLR_release-OSX.1100.ARM64.Open

- System.Linq.Parallel.Tests.ParallelQueryCombinationTests.SequenceEqual_OperationCanceledException(operation: SelectMany-ResultSelector)

Error message:

Assert.Throws() Failure
Expected: typeof(System.OperationCanceledException)
Actual:   (No exception was thrown)


Stack trace
   at System.Linq.Parallel.Tests.AssertThrows.EventuallyCanceled(Action`2 query) in /_/src/libraries/System.Linq.Parallel/tests/Helpers/AssertThrows.cs:line 33
   at System.Linq.Parallel.Tests.ParallelQueryCombinationTests.SequenceEqual_OperationCanceledException(Labeled`1 operation) in /_/src/libraries/System.Linq.Parallel/tests/Combinatorial/CancellationParallelQueryCombinationTests.cs:line 614