Documentation - Test Explorer

[Pinox]

I followed the Tutorial Basics and immediately hit my first obstacle.

Test explorer in Visual Studio is not working and that is a show stopper for me. After searching online I eventually found a comment that the xunit template can be used with tunit and then the test explorer work again.

with project file as follows:

Would be great if you guys include this test explorer setup screen with the Visual Studio settings screenshot in the basics tutorial as I think a lot of people like me will be looking for this as that is what we are accustomed to using inside visual studio.

[thomhurst]

Where did you read this comment? You do not need the xunit runner. You probably just haven't turned on the testing platform mode as detailed here: https://thomhurst.github.io/TUnit/docs/tutorial-basics/running-your-tests#visual-studio

[Pinox]

@thomhurst

https://learn.microsoft.com/en-us/answers/questions/2078124/tunit-test-is-not-showing-in-the-test-explorer

Testing platform did not work for me on its own.

[thomhurst]

They're mixing xUnit and TUnit in one project, which is not supported, they will conflict with each other.

Testing platform did not work for me on its own.

Did you restart Visual Studio after?

Also, Coverlet is not supported for TUnit, you need to use: Microsoft.Testing.Extensions.CodeCoverage

[Pinox]

Did you restart Visual Studio after?

No, I did not as it was already selected in my settings.

I initially got this error message but I see you are right if I now restart a new Visual Studio project with the normal packs then it works.

========== Starting test discovery ==========
Test framework UID: 'TUnitExtension' Version: '0.4.1.0' DisplayName: 'TUnit' Description: 'TUnit Framework for Microsoft Testing Platform'
System.IO.IOException: The device is not ready. : '000.testlog'
at System.IO.RandomAccess.WriteAtOffset(SafeFileHandle handle, ReadOnlySpan1 buffer, Int64 fileOffset) at System.IO.Strategies.OSFileStreamStrategy.Write(ReadOnlySpan1 buffer)
at System.IO.Strategies.OSFileStreamStrategy.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.Strategies.BufferedFileStreamStrategy.Flush(Boolean flushToDisk)
at Microsoft.VisualStudio.TestStorage.TestLog.WriteLogEntry(LogEntry logEntry)
at Microsoft.VisualStudio.TestStorage.TestLog.Append(TestBaseRecord testRecord)
at Microsoft.VisualStudio.TestStorage.TestStore.AddToLog(TestBaseRecord record)
at Microsoft.VisualStudio.TestStorage.TestStore.Add(TestBaseRecord record, Boolean onlyAddIfNew)
at Microsoft.VisualStudio.TestWindow.Host.TestRunSessionBase.AddTestCases(ICollection1 testCaseRecords) at Microsoft.VisualStudio.TestWindow.Host.VsTestRunSession.AddRemoteTestCaseRecords(IEnumerable1 testCases)
at Microsoft.VisualStudio.TestWindow.Host.VsTestRunSession.OnTestsDiscovered(IEnumerable1 testsDiscovered) at Microsoft.VisualStudio.TestWindow.Logging.ILoggerExtensions.CallInternalWithLogging[TArg](IInternalLogger log, Action1 action, TArg arg, Boolean shouldThrow)
System.IO.IOException: The device is not ready. : '\TestStore\0\000.testlog'
at System.IO.RandomAccess.WriteAtOffset(SafeFileHandle handle, ReadOnlySpan1 buffer, Int64 fileOffset) at System.IO.Strategies.OSFileStreamStrategy.Write(ReadOnlySpan1 buffer)
at System.IO.Strategies.OSFileStreamStrategy.Write(Byte[] buffer, Int32 offset, Int32 count)
at System.IO.Strategies.BufferedFileStreamStrategy.Flush(Boolean flushToDisk)
at Microsoft.VisualStudio.TestStorage.TestLog.WriteLogEntry(LogEntry logEntry)
at Microsoft.VisualStudio.TestStorage.TestLog.Append(TestBaseRecord testRecord)
at Microsoft.VisualStudio.TestStorage.TestStore.AddToLog(TestBaseRecord record)
at Microsoft.VisualStudio.TestStorage.TestStore.Add(TestBaseRecord record, Boolean onlyAddIfNew)
at Microsoft.VisualStudio.TestWindow.Host.VsTestRunSession.OnDiscoveryCompletedForContainer(TestContainerRecord container, IEnumerable1 activeEnvironments) at Microsoft.VisualStudio.TestWindow.Host.VsTestRunSession.OnDiscoveryCompleted(IEnumerable1 containersSentForDiscovery, IEnumerable`1 activeEnvironments)
at Microsoft.VisualStudio.TestWindow.Host.TestPlatformProvider.DiscoverTestsAsync(DiscoverTestsRequest request, TestStore testStore, VsTestRunSession runSession, CancellationToken cancellationToken)
at Microsoft.VisualStudio.TestWindow.Host.TestWindowStoreService.<>c__DisplayClass42_0.<b__0>d.MoveNext()
--- End of stack trace from previous location ---

[thomhurst]

Glad it's working now

[Arthri]

Also, Coverlet is not supported for TUnit, you need to use: Microsoft.Testing.Extensions.CodeCoverage

For what it's worth, coverlet.console seems to work with TUnit. But coverlet.msbuild requires a few tweaks, which I've detailed in the issue I wrote coverlet-coverage/coverlet#1715