Closed
Description
Description
vstest.console may hang indefinitely if the testhost process dies
Steps to reproduce
dotnet new xunit
Add this test:
using System;
using System.Threading;
using Xunit;
namespace testfail
{
public class UnitTest1
{
[Fact]
public void Passes()
{
}
[Fact]
public void OtherThreadFails()
{
Thread.Sleep(1000);
Action fail = () => throw new InvalidOperationException();
var thread = new Thread(new ThreadStart(fail));
thread.Start();
thread.Join();
}
}
}Expected behavior
If test host dies, vstest.console should fail the test run.
Actual behavior
Error printed to console:
The active test run was aborted. Reason: Unable to communicate with test host process.
Then the vstest.console.dll process hangs forever.
The hung process:
"dotnet" exec "C:\Program Files\dotnet\sdk\1.0.3\vstest.console.dll" --framework:".NETCoreApp,Version=v1.1" --logger:console;verbosity=normal "C:\tmp\testfail\bin\Debug\netcoreapp1.1\testfail.dll"
When attaching to the hung process, the process has two threads that are deadlocked.
Main thread
> System.Private.CoreLib.ni.dll!System.Threading.WaitHandle.InternalWaitOne(System.Runtime.InteropServices.SafeHandle waitableSafeHandle, long millisecondsTimeout, bool hasThreadAffinity, bool exitContext) Unknown
System.Private.CoreLib.ni.dll!System.Threading.WaitHandle.WaitOne(int millisecondsTimeout, bool exitContext) Unknown
Microsoft.VisualStudio.TestPlatform.Client.dll!Microsoft.VisualStudio.TestPlatform.Client.Execution.TestRunRequest.WaitForCompletion(int timeout) Unknown
Microsoft.VisualStudio.TestPlatform.ObjectModel.dll!Microsoft.VisualStudio.TestPlatform.ObjectModel.Client.RequestExtensions.WaitForCompletion(Microsoft.VisualStudio.TestPlatform.ObjectModel.Client.IRequest request) Unknown
vstest.console.dll!Microsoft.VisualStudio.TestPlatform.CommandLine.TestPlatformHelpers.TestRequestManager.RunTests(Microsoft.VisualStudio.TestPlatform.ObjectModel.Client.TestRunCriteria testRunCriteria, Microsoft.VisualStudio.TestPlatform.Common.Interfaces.ITestRunEventsRegistrar testRunEventsRegistrar) Unknown
Worker thread
> System.Private.CoreLib.ni.dll!System.Threading.WaitHandle.InternalWaitOne(System.Runtime.InteropServices.SafeHandle waitableSafeHandle, long millisecondsTimeout, bool hasThreadAffinity, bool exitContext) Unknown
System.Private.CoreLib.ni.dll!System.Threading.WaitHandle.WaitOne(int millisecondsTimeout, bool exitContext) Unknown
Microsoft.TestPlatform.CoreUtilities.dll!Microsoft.VisualStudio.TestPlatform.Utilities.JobQueue<System.Action>.BackgroundJobProcessor() Unknown
Microsoft.TestPlatform.CoreUtilities.dll!Microsoft.VisualStudio.TestPlatform.Utilities.JobQueue<System.__Canon>..ctor.AnonymousMethod__12_0() Unknown
Environment
dotnet.exe 1.0.3
Windows 10, x64
Microsoft.NET.Test.Sdk 15.0.0
xunit 2.2.0
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