coverlet: Failed to get coverage result: Unable to read beyond the end of the stream

Despite following the recommendation of using the following command:

dotnet test --collect:"XPlat Code Coverage"

Because of this known issue https://github.com/tonerdo/coverlet/blob/master/Documentation/KnowIssues.md#1-vstest-stops-process-execution-earlydotnet-test

I still seem to be getting the same issue.

Data collector 'XPlat code coverage' message: [coverlet]Coverlet.Collector.Utilities.CoverletDataCollectorException: CoverletCoverageDataCollector: Failed to get coverage result
 ---> System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
   at System.IO.BinaryReader.InternalRead(Int32 numBytes)
   at Coverlet.Core.Coverage.CalculateCoverage() in D:\git\coverletToRelease\src\coverlet.core\Coverage.cs:line 363
   at Coverlet.Core.Coverage.GetCoverageResult() in D:\git\coverletToRelease\src\coverlet.core\Coverage.cs:line 137
   at Coverlet.Collector.DataCollection.CoverageWrapper.GetCoverageResult(Coverage coverage) in D:\git\coverletToRelease\src\coverlet.collector\DataCollection\CoverageWrapper.cs:line 44
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in D:\git\coverletToRelease\src\coverlet.collector\DataCollection\CoverageManager.cs:line 91
   --- End of inner exception stack trace ---
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in D:\git\coverletToRelease\src\coverlet.collector\DataCollection\CoverageManager.cs:line 96
   at Coverlet.Collector.DataCollection.CoverletCoverageCollector.OnSessionEnd(Object sender, SessionEndEventArgs e) in D:\git\coverletToRelease\src\coverlet.collector\DataCollection\CoverletCoverageCollector.cs:line 148.

Is it expected that by using this method I should never get the Unable to read beyond the end of the stream error?

About this issue

Original URL
State: closed
Created 4 years ago
Comments: 17 (1 by maintainers)

Most upvoted comments

Hello, I wanted to reopen this issue as we are experiencing the same problem using the collectors. Our package version are the following:

coverlet.collectors 1.3.0
Microsoft.NET.Test.Sdk 16.6.1
Tests projects target netcoreapp2.2
dotnet sdk 3.1.301
Microsoft Test Execution Command Line Tool Version 16.6.0 (displayed in the test logs)

We run the tests by running dotnet test {CS Project} --no-build --no-restore --logger trx --collect "XPlat Code Coverage".

The error we receive is:

Data collector 'XPlat code coverage' message: [coverlet]Coverlet.Collector.Utilities.CoverletDataCollectorException: CoverletCoverageDataCollector: Failed to get coverage result
 ---> System.IO.EndOfStreamException: Unable to read beyond the end of the stream.
   at System.IO.BinaryReader.InternalRead(Int32 numBytes)
   at Coverlet.Core.Coverage.CalculateCoverage() in /_/src/coverlet.core/Coverage.cs:line 367
   at Coverlet.Core.Coverage.GetCoverageResult() in /_/src/coverlet.core/Coverage.cs:line 141
   at Coverlet.Collector.DataCollection.CoverageWrapper.GetCoverageResult(Coverage coverage) in /_/src/coverlet.collector/DataCollection/CoverageWrapper.cs:line 44
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in /_/src/coverlet.collector/DataCollection/CoverageManager.cs:line 93
   --- End of inner exception stack trace ---
   at Coverlet.Collector.DataCollection.CoverageManager.GetCoverageResult() in /_/src/coverlet.collector/DataCollection/CoverageManager.cs:line 98
   at Coverlet.Collector.DataCollection.CoverletCoverageCollector.OnSessionEnd(Object sender, SessionEndEventArgs e) in /_/src/coverlet.collector/DataCollection/CoverletCoverageCollector.cs:line 160.

The test projects are being run one by one. This does not happen all the time, hence our coverage is inconsistent.

orbus-dkreivenas on Jul 8, 2020

Please reopen. Getting the same error. dotnet version: 3.1.302

Command: bat "${env.DOTNET_EXE} test MyTestProject.csproj --no-restore -c Release /p:CollectCoverage=true /p:CoverletOutput=${env.WORKSPACE}/${env.UT_RESULTS} /p:CoverletOutputFormat=opencover /p:Threshold=50 /p:ThresholdType=branch /p:ThresholdStat=Average /p:Exclude=[*Test*]*"

agray on Jul 29, 2020

Sorry for the delay. As this is a known issue, I’m gonna close this. Thanks a lot for pointing me to the right resources. 🙂

Edit: I’m not the author of this issue. So I cannot close it.

prashanth-nani on May 18, 2020

@MarcoRossignoli it’s in a closed pr https://github.com/tonerdo/coverlet/pull/225#issuecomment-573896446

pape77 on Feb 29, 2020

Facing the same issue. It is not consistent though.

The screenshot is from our build agent logs. When I just retry without making any changes, it works. Please let me know if you need any further info.

prashanth-nani on Feb 28, 2020