Test failure: System.Net.Http.Functional.Tests.PlatformHandler_HttpClientHandlerTest / ProxyAuth_Digest_Succeeds

[benaadams]

dotnet/corefx#28643 (comment)

Windows.10.Amd64.Open-x86-Release

ProxyAuth_Digest_Succeeds
System.Net.Http.Functional.Tests.PlatformHandler_HttpClientHandlerTest

Unhandled Exception of Type System.TimeoutException
Message :
System.TimeoutException : WhenAllOrAnyFailed timed out after 60000
Stack Trace :
   at System.Threading.Tasks.TaskTimeoutExtensions.WhenAllOrAnyFailed(Task[] tasks, Int32 millisecondsTimeout) in D:\j\workspace\windows-TGrou---f8ac6754\src\Common\tests\System\Threading\Tasks\TaskTimeoutExtensions.cs:line 53
   at System.Net.Http.Functional.Tests.HttpClientHandlerTest.<>c__DisplayClass114_0.<<ProxyAuth_Digest_Succeeds>b__0>d.MoveNext() in D:\j\workspace\windows-TGrou---f8ac6754\src\System.Net.Http\tests\FunctionalTests\HttpClientHandlerTest.cs:line 3014
--- End of stack trace from previous location where exception was thrown ---
   at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options) in D:\j\workspace\windows-TGrou---f8ac6754\src\Common\tests\System\Net\Http\LoopbackServer.cs:line 67
   at System.Net.Http.Functional.Tests.HttpClientHandlerTest.ProxyAuth_Digest_Succeeds() in D:\j\workspace\windows-TGrou---f8ac6754\src\System.Net.Http\tests\FunctionalTests\HttpClientHandlerTest.cs:line 3000
--- End of stack trace from previous location where exception was thrown ---

[davidsh]

This test is using the loopback server. Since it failed with a timeout, it's likely the test run was slow to start the async operations for the loopback server. Thus, HttpClient timed this request out.

[danmoseley]

Got this in Windows 7, on CI

System.Net.Http.HttpRequestException : An error occurred while sending the request.
---- System.Net.Http.WinHttpException : Error 12152 calling WINHTTP_CALLBACK_STATUS_REQUEST_ERROR, 'The server returned an invalid or unrecognized response'.
Stack Trace :
   at System.Net.Http.HttpClient.FinishSendAsyncBuffered(Task`1 sendTask, HttpRequestMessage request, CancellationTokenSource cts, Boolean disposeCts) in D:\j\workspace\windows-TGrou---2c40d8a1\src\System.Net.Http\src\System\Net\Http\HttpClient.cs:line 479
   at System.Net.Http.Functional.Tests.HttpClientHandler_Proxy_Test.<>c__DisplayClass8_0.<<ProxyAuth_Digest_Succeeds>b__0>d.MoveNext() in D:\j\workspace\windows-TGrou---2c40d8a1\src\System.Net.Http\tests\FunctionalTests\HttpClientHandlerTest.Proxy.cs:line 272
--- End of stack trace from previous location where exception was thrown ---
   at System.Net.Test.Common.LoopbackServer.CreateServerAsync(Func`2 funcAsync, Options options) in D:\j\workspace\windows-TGrou---2c40d8a1\src\Common\tests\System\Net\Http\LoopbackServer.cs:line 67
   at System.Net.Http.Functional.Tests.HttpClientHandler_Proxy_Test.ProxyAuth_Digest_Succeeds() in D:\j\workspace\windows-TGrou---2c40d8a1\src\System.Net.Http\tests\FunctionalTests\HttpClientHandlerTest.Proxy.cs:line 256
--- End of stack trace from previous location where exception was thrown ---
----- Inner Stack Trace -----
   at System.Threading.Tasks.RendezvousAwaitable`1.GetResult() in D:\j\workspace\windows-TGrou---2c40d8a1\src\Common\src\System\Threading\Tasks\RendezvousAwaitable.cs:line 62
   at System.Net.Http.WinHttpHandler.StartRequest(WinHttpRequestState state) in D:\j\workspace\windows-TGrou---2c40d8a1\src\System.Net.Http.WinHttpHandler\src\System\Net\Http\WinHttpHandler.cs:line 861

[karelz]

@wfurt can you please check frequency of this failure lately?

[wfurt]

I did not see any failure since the last one. This one seems to be really sporadic.

[karelz]

No failures during 2/23-5/11 (incl. PRs). Closing.