Hanging tests MvcTemplate_RazorRuntimeCompilation_BuildsAndPublishes and Template_Produces_The_Right_Set_Of_FilesAsync

[halter73]

[xUnit.net 00:15:55.56] ProjectTemplates.Tests: [Long Running Test] 'Templates.Test.BaselineTest.Template_Produces_The_Right_Set_Of_FilesAsync(arguments: "new razor -au Individual", expectedFiles: ["app.db", "appsettings.Development.json", "appsettings.json", "Program.cs", "Startup.cs", ...])', Elapsed: 00:12:13
[Long Running Test] 'Templates.Test.MvcTemplateTest.MvcTemplate_RazorRuntimeCompilation_BuildsAndPublishes', Elapsed: 00:12:01
The active test run was aborted. Reason: Test host process crashed : Unhandled exception. System.AggregateException: One or more errors occurred. (Cannot process request because the process (14604) has exited.)
 ---> System.InvalidOperationException: Cannot process request because the process (14604) has exited.
   at System.Diagnostics.Process.ThrowIfExited(Boolean refresh)
   at System.Diagnostics.Process.EnsureState(State state)
   at System.Diagnostics.Process.EnsureState(State state)
   at System.Diagnostics.Process.get_ProcessName()
   at Microsoft.AspNetCore.Internal.ProcessEx.<>c__DisplayClass13_0.<.ctor>b__0() in /_/src/Shared/Process/ProcessEx.cs:line 55
   at System.Threading.CancellationToken.<>c.<.cctor>b__26_0(Object obj)
   at System.Threading.CancellationTokenSource.CallbackNode.<>c.<ExecuteCallback>b__9_0(Object s)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
   --- End of inner exception stack trace ---
   at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
   at System.Threading.TimerQueueTimer.CallCallback(Boolean isThreadPool)
   at System.Threading.TimerQueueTimer.Fire(Boolean isThreadPool)
   at System.Threading.TimerQueue.FireNextTimers()
Unhandled exception. System.AggregateException: One or more errors occurred. (Cannot process request because the process (14910) has exited.)
 ---> System.InvalidOperationException: Cannot process request because the process (14910) has exited.
   at System.Diagnostics.Process.ThrowIfExited(Boolean refresh)
   at System.Diagnostics.Process.EnsureState(State state)
   at System.Diagnostics.Process.EnsureState(State state)
   at System.Diagnostics.Process.get_ProcessName()
   at Microsoft.AspNetCore.Internal.ProcessEx.<>c__DisplayClass13_0.<.ctor>b__0() in /_/src/Shared/Process/ProcessEx.cs:line 55
   at System.Threading.CancellationToken.<>c.<.cctor>b__26_0(Object obj)
   at System.Threading.CancellationTokenSource.CallbackNode.<>c.<ExecuteCallback>b__9_0(Object s)
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state)
--- End of stack trace from previous location ---
   at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
   --- End of inner exception stack trace ---
   at System.Threading.CancellationTokenSource.ExecuteCallbackHandlers(Boolean throwOnFirstException)
   at System.Threading.TimerQueueTimer.CallCallback(Boolean isThreadPool)
   at System.Threading.TimerQueueTimer.Fire(Boolean isThreadPool)
   at System.Threading.ThreadPoolWorkQueue.Dispatch()

https://dev.azure.com/dnceng/public/_build/results?buildId=730760&view=ms.vss-test-web.build-test-results-tab&runId=22604528&resultId=121668&paneView=dotnet-dnceng.dnceng-build-release-tasks.helix-test-information-tab

Thanks for contacting us.
We're moving this issue to the Next sprint planning milestone for future evaluation / consideration. We will evaluate the request when we are planning the work for the next milestone. To learn more about what to expect next and how this issue will be handled you can read more about our triage process here.

[Tratcher]

Note this is currently the flakiest test. It's failed on master for 100% of 132 runs in the last 14 days. Prioritize accordingly.

[Tratcher]

Actually, the failure is different now.

[xUnit.net 00:02:40.23]     Templates.Test.BaselineTest.Template_Produces_The_Right_Set_Of_FilesAsync(arguments: "new blazorserver -au Windows", expectedFiles: ["App.razor", "appsettings.Development.json", "appsettings.json", "Program.cs", "Startup.cs", ...]) [FAIL]
[xUnit.net 00:02:40.23]       Assert.Contains() Failure
[xUnit.net 00:02:40.23]       Not found: Pages/Error.cshtml.cs
[xUnit.net 00:02:40.23]       In value:  String[] ["App.razor", "appsettings.Development.json", "appsettings.json", "Program.cs", "Startup.cs", ...]
[xUnit.net 00:02:40.23]       Stack Trace:
[xUnit.net 00:02:40.23]         /_/src/ProjectTemplates/test/BaselineTest.cs(105,0): at Templates.Test.BaselineTest.Template_Produces_The_Right_Set_Of_FilesAsync(String arguments, String[] expectedFiles)

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.