Unable to read beyond the end of the stream

[DaGrisa]

Hi,

every now and then we get the following error:

Test Run Successful.
07:15:22
    Total tests: 23
07:15:22
         Passed: 23
07:15:22
     Total time: 31.4479 Seconds
07:15:22
    07:15:22
    Calculating coverage result...
07:15:22
    C:\Users\teamcity\.nuget\packages\coverlet.msbuild\2.8.1\build\coverlet.msbuild.targets(36,5): error : Unable to read beyond the end of the stream.
07:15:22
    C:\Users\teamcity\.nuget\packages\coverlet.msbuild\2.8.1\build\coverlet.msbuild.targets(36,5): error :    at System.IO.BinaryReader.InternalRead(Int32 numBytes)
07:15:22
    C:\Users\teamcity\.nuget\packages\coverlet.msbuild\2.8.1\build\coverlet.msbuild.targets(36,5): error :    at Coverlet.Core.Coverage.CalculateCoverage() in c:\git\coverletToRelease\src\coverlet.core\Coverage.cs:line 355
07:15:22
    C:\Users\teamcity\.nuget\packages\coverlet.msbuild\2.8.1\build\coverlet.msbuild.targets(36,5): error :    at Coverlet.Core.Coverage.GetCoverageResult() in c:\git\coverletToRelease\src\coverlet.core\Coverage.cs:line 137
07:15:22
    C:\Users\teamcity\.nuget\packages\coverlet.msbuild\2.8.1\build\coverlet.msbuild.targets(36,5): error :    at Coverlet.MSbuild.Tasks.CoverageResultTask.Execute() in c:\git\coverletToRelease\src\coverlet.msbuild.tasks\CoverageResultTask.cs:line 113

We have a solution with multiple projects, but this happens not always at the same project.

Coverlet version: coverlet.msbuild:2.8.1
Test SDK version: Microsoft.NET.Test.Sdk:16.5.0

I've seen issues with the same problem here, but none of the solutions worked so far.

Best regards,
Daniel

[MarcoRossignoli]

You're hitting know issue https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/KnownIssues.md#1-vstest-stops-process-execution-earlydotnet-test
You should use collectors integration https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/VSTestIntegration.md (released 1.3.0 version some days ago so update the reference).

[MarcoRossignoli]

any news?

[DaGrisa]

Yes, thank you, now it works for us.

[jeoffm]

i tried the fix & it worked once, but has continued to fail since

[MarcoRossignoli]

i tried the fix & it worked once, but has continued to fail since

What do you mean?Can you post command line?

[jeoffm]

i tried the fix & it worked once, but has continued to fail since

What do you mean?Can you post command line?

in my azure devops pipeline, i had a task to ensure coverlet.msbuild was included/updated:
dotnet add package coverlet.msbuild

and then my next step was to run the dotnet test command
so i inserted a task between the 2 to ensure the coverlet.collector was included/updated:
dotnet add package coverlet.collector

so the order was:

1. update msbuild
2. update collector
3. run tests

this worked on the first run, but failed on the next 2, however after reordering steps 1 & 2 (now collector is 1st), it seems to be working every time :), Oh, I also changed my build configuration from Release to Debug. Anyway for the moment I think it's all good, thanks, sorry to have bugged you

[MarcoRossignoli]

@jeoffm can you open another issue?This is solved.

You MUST use collectors only integration if you want to avoid this issue, no msbuild reference. Follow this guide https://github.com/coverlet-coverage/coverlet/blob/master/Documentation/VSTestIntegration.md and this sample https://github.com/coverlet-coverage/coverlet/tree/master/Documentation/Examples/VSTest/HelloWorld