[MT][Firefox] Wasm test failure: System.IO.FileNotFoundException : Could not load file or assembly `xunit.assert`

[jkotas]

Build Information

Build: https://dev.azure.com/dnceng-public/cbb18261-c48f-4abb-8651-8cdcb5474649/_build/results?buildId=872333
Build error leg or test failing: System.Net.WebSockets.Client.Tests.AbortTest.ClientWebSocket_Abort_CloseOutputAsync(server: ws://127.0.0.1:44511/WebSocket/EchoWebSocket.ashx)
Pull request: #109929

Error Message

Fill the error message using step by step known issues guidance.

{
  "ErrorMessage": "System.IO.FileNotFoundException : Could not load file or assembly 'xunit.assert",
  "ErrorPattern": "",
  "BuildRetry": false,
  "ExcludeConsoleLog": false
}

Known issue validation

Build: 🔎 https://dev.azure.com/dnceng-public/public/_build/results?buildId=872333
Error message validated: [System.IO.FileNotFoundException : Could not load file or assembly 'xunit.assert]
Result validation: ✅ Known issue matched with the provided build.
Validation performed at: 11/19/2024 5:04:05 AM UTC

Report

Summary

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

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[ilonatommy]

Tests that use reflection fail:

at System.Reflection.MethodBaseInvoker.InterpretedInvoke_Method(Object obj, IntPtr* args)
at System.Reflection.MethodBaseInvoker.InvokeWithNoArgs(Object obj, BindingFlags invokeAttr)

at System.Object.InvokeStub_ResourceReaderTests.ReadResource(Object , Span`1 )
at System.Reflection.MethodBaseInvoker.InvokeWithOneArg(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture)

@pavelsavara I am not sure what's the cause, I will try to block the failing ones

[pavelsavara]

I think there would be too many to disable, because it's some race condition during startup.
Possibly same reason as #102615