Connect_ThrowSocketException_Success failures on Linux

[antonfirsov]

Test case: System.Net.Sockets.Tests.ConnectTask.Connect_ThrowSocketException_Success

Error message:

Assert.Fail(): Socket Connect should throw SocketException in this case.

Stack trace:

   at System.Net.Sockets.Tests.ConnectTask.Connect_ThrowSocketException_Success() in /_/src/libraries/System.Net.Sockets/tests/FunctionalTests/Connect.cs:line 230
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodInvoker.cs:line 59

The socket seems to make a succesful connect to an unrelated dual socket in a parallel test. Can be fixed with a trick like #1481 (comment).

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Issue Details

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Test case: System.Net.Sockets.Tests.ConnectTask.Connect_ThrowSocketException_Success

Error message:

Assert.Fail(): Socket Connect should throw SocketException in this case.

Stack trace:

   at System.Net.Sockets.Tests.ConnectTask.Connect_ThrowSocketException_Success() in /_/src/libraries/System.Net.Sockets/tests/FunctionalTests/Connect.cs:line 230
   at System.RuntimeMethodHandle.InvokeMethod(Object target, Void** arguments, Signature sig, Boolean isConstructor)
   at System.Reflection.MethodInvoker.Invoke(Object obj, IntPtr* args, BindingFlags invokeAttr) in /_/src/libraries/System.Private.CoreLib/src/System/Reflection/MethodInvoker.cs:line 59

The socket seems to make a succesful connect to an unrelated dual socket in a parallel test. Can be fixed with a trick like #1481 (comment).

Author:	antonfirsov
Assignees:	-
Labels:	area-System.Net.Sockets, test-bug
Milestone:	8.0.0