Build Server Updated to VS 16.10.0 breaks elevated tests

[Josh]

Over the weekend Visual Studio was upgraded to 16.10.0 on our self-hosted Azure DevOps agent server. This has caused all of our unit tests that rely on the JustMock profiler to begin failing with the Exception:

Failed {METHODNAME} [6 ms]
  Error Message:
   Test method {NAMESPACE}.{CLASSNAME}.{METHODNAME} threw exception: 
System.InvalidProgramException: Common Language Runtime detected an invalid program.
  Stack Trace:
      at {NAMESPACE}.{CLASSNAME}.{METHODNAME}()
   at System.Runtime.CompilerServices.AsyncMethodBuilderCore.Start[TStateMachine](TStateMachine& stateMachine)
   at {NAMESPACE}.{CLASSNAME}.{METHODNAME}()

We are using JustMock R2 2021, the Telerik JustMock VSTest v.2 (v2.6.1) pipeline task, and our test projects are targeting netcore3.1.

The tests run and pass when executed locally through Visual Studio (16.10.0) Test Explorer, but fail during pipeline execution. Nothing else has changed on the agent server except for the Visual Studio upgrade that I am aware of.

Pipeline YAML:

- job: BuildAndPublishWebsite_${{ parameters.jobName }}

  displayName: 'Build and Publish Website - ${{ parameters.jobName }}'

  steps:

    - checkout: self

      clean: true

      fetchDepth: 10

    - task: DotNetCoreCLI@2

      displayName: 'dotnet restore'

      inputs:

        command: restore

        projects: '**/*.csproj'

        vstsFeed: ${{ parameters.vstsFeedId }}

    - task: DotNetCoreCLI@2

      displayName: 'dotnet build'

      inputs:

        projects: '**/*.csproj'

        arguments: '--no-restore --nologo --configuration ${{ parameters.buildConfiguration }}'

- task: JustMockVSTest@2

      displayName: 'Run Unit Tests'

      inputs:

        testAssemblyVer2: |

          **\*tests*.dll

          **\*Tests*.dll

          !**\*TestAdapter.dll

          !**\obj\**

          !**\packages\**

        pathTo64BitJustMockProfiler: '$(System.DefaultWorkingDirectory)\lib\Telerik\JustMock\CodeWeaver\64\Telerik.CodeWeaver.Profiler.dll'

        pathTo32BitJustMockProfiler: '$(System.DefaultWorkingDirectory)\lib\Telerik\JustMock\CodeWeaver\32\Telerik.CodeWeaver.Profiler.dll'

        vsTestVersion: latest

        runInParallel: true

        codeCoverageEnabled: true

 

[Mihail]

Hey Josh,

As I answered the ticket you've opened, I wasn't able to reproduce the described issue. I will appreciate it if you can send us the full build log. This way I will have more data on what is going on.

Regards,
Mihail
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