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I'm working on a .NET 4.5 project and trying to use Azure DevOps pipelines to publish the test results but I keep getting an error:

The report file pattern 'D:\a_temp/**/*.xml' found no matching files.

I'm using VSTest@2:

- task: VSTest@2
  displayName: '.NET Framework Unit Tests'
  inputs:
    configuration: 'Release'
    testSelector: 'testAssemblies'
    testAssemblyVer2: |
      **\${{ parameters.projectName }}\${{ parameters.testDllPattern}}.dll
      !**\*TestAdapter.dll
      !**\obj\**
    codeCoverageEnabled: true
    otherConsoleOptions: '\collect:Code Coverage;Format=Cobertura'

I understand this task creates a .coverage file instead of a .xml.

So I looked around and found this dotnet-coverageconverter.

And I tried to implement it:

- task: DotNetCoreCLI@2
  displayName: "Install tool: dotnet-coverageconverter"
  inputs:
    command: 'custom'
    custom: 'tool'
    arguments: 'update --global dotnet-coverageconverter'

- task: CmdLine@2
  displayName: 'Convert .coverage to .coveragexml'
  inputs:
    script: 'dotnet-coverageconverter --CoverageFilesFolder "$(Agent.TempDirectory)\TestResults" --verbose'

But then I run the report generator script and it doesn't find any .xml files:

- script: reportgenerator -reports:$(Agent.TempDirectory)/**/*.cobertura.xml;$(Agent.TempDirectory)/**/*.coveragexml -targetdir:$(Agent.TempDirectory)/TestResults/Coverage/Reports -reporttypes:"HtmlInline_AzurePipelines;Cobertura;Badges;SonarQube"
  displayName: 'Create coverage report for Azure Pipeline'

My questions are:

• What am doing wrong?
• Is there any other way of converting this .coverage to .xml?

With .NET Core projects, it's easy with netcli tasks. But with legacy .NET, I'm having trouble.

Thank you in advance.

I'm working on a .NET 4.5 project and trying to use Azure DevOps pipelines to publish the test results but I keep getting an error:

The report file pattern 'D:\a_temp/**/*.xml' found no matching files.

I'm using VSTest@2:

- task: VSTest@2
  displayName: '.NET Framework Unit Tests'
  inputs:
    configuration: 'Release'
    testSelector: 'testAssemblies'
    testAssemblyVer2: |
      **\${{ parameters.projectName }}\${{ parameters.testDllPattern}}.dll
      !**\*TestAdapter.dll
      !**\obj\**
    codeCoverageEnabled: true
    otherConsoleOptions: '\collect:Code Coverage;Format=Cobertura'

I understand this task creates a .coverage file instead of a .xml.

So I looked around and found this dotnet-coverageconverter.

And I tried to implement it:

- task: DotNetCoreCLI@2
  displayName: "Install tool: dotnet-coverageconverter"
  inputs:
    command: 'custom'
    custom: 'tool'
    arguments: 'update --global dotnet-coverageconverter'

- task: CmdLine@2
  displayName: 'Convert .coverage to .coveragexml'
  inputs:
    script: 'dotnet-coverageconverter --CoverageFilesFolder "$(Agent.TempDirectory)\TestResults" --verbose'

But then I run the report generator script and it doesn't find any .xml files:

- script: reportgenerator -reports:$(Agent.TempDirectory)/**/*.cobertura.xml;$(Agent.TempDirectory)/**/*.coveragexml -targetdir:$(Agent.TempDirectory)/TestResults/Coverage/Reports -reporttypes:"HtmlInline_AzurePipelines;Cobertura;Badges;SonarQube"
  displayName: 'Create coverage report for Azure Pipeline'

My questions are:

• What am doing wrong?
• Is there any other way of converting this .coverage to .xml?

With .NET Core projects, it's easy with netcli tasks. But with legacy .NET, I'm having trouble.

Thank you in advance.

• .net
• azure-devops

Share Improve this question Follow edited Nov 25, 2024 at 5:56 Daniel Mann 59k1313 gold badges105105 silver badges127127 bronze badges asked Nov 22, 2024 at 15:16 WeedosaurusWeedosaurus 16411 silver badge99 bronze badges

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2 Answers 2

Sorted by: Reset to default 0

When using VSTest@2 task, code coverage report is saved in a .coverage file and will be published to the pipeline automatically by default.

According to your yaml file, you have changed the code coverage format to Cobertura by otherConsoleOptions: '\collect:Code Coverage;Format=Cobertura'. In this case, the report is saved in a .cobertura.xml file, which can be seen in the log of VSTest@2 task. To publish this report to the pipeline, you can use PublishCodeCoverageResults@1 task or reportgenerator@5 task.

- task: VSTest@3
  inputs:
    testSelector: 'testAssemblies'
    testAssemblyVer2: '**\bin\**\*Collector.dll'
    searchFolder: '$(System.DefaultWorkingDirectory)'
    codeCoverageEnabled: true
    otherConsoleOptions: '/collect:"Code Coverage;Format=Cobertura"'
    configuration: '$(buildConfiguration)'

- task: PublishCodeCoverageResults@1
  displayName: 'Publish code coverage report'
  inputs:
    codeCoverageTool: 'Cobertura'
    summaryFileLocation: '$(Agent.TempDirectory)/**/*.*.cobertura.xml'

Or

- task: reportgenerator@5
  inputs:
    reports: '$(Agent.TempDirectory)/**/*.*.cobertura.xml'
    targetdir: 'coveragereport'
    publishCodeCoverageResults: true

Result:

After some research I found a way to achieve my goal with coverlet and by disabling auto generate coverage:

stages:
- stage: Build
  variables:
    disable.coverage.autogenerate: 'true' -> Disabling autogenerate coverage
  jobs:
  - job: BuildPackage
    steps:
    - checkout: self
    - checkout: TestAutomation
(..)

Then installing and using a coverlet script:

- task: DotNetCoreCLI@2
  inputs:
    command: custom
    custom: tool
    arguments: install --tool-path . coverlet.console
  displayName: Install Coverlet.Console tool

- task: PowerShell@2
  inputs:
    targetType: inline
    script: |
        Get-ChildItem **\${{ parameters.projectName }}\**\bin\* -Filter "*.framework.tests.dll" -Recurse |
        Foreach-Object { 
        .\coverlet.exe $_.FullName --target "dotnet" --targetargs "vstest $($_.FullName) --logger:trx" --format "cobertura"
        $NewName = $_.Name + ".coverage.cobertura.xml"
        Rename-Item coverage.cobertura.xml $NewName

        Write-Host "Generated Coverage Report: $NewName at $(Get-Location)"
        }
  displayName: Generate Coverlet coverage report for test libraries

Then, since coverlet creates the xml file in the default working directory:

- script: reportgenerator -reports:$(Agent.TempDirectory)\**\*.cobertura.xml;$(System.DefaultWorkingDirectory)\*.cobertura.xml -targetdir:$(Agent.TempDirectory)/TestResults/Coverage/Reports -reporttypes:"HtmlInline_AzurePipelines;Cobertura;Badges;SonarQube"
  displayName: 'Create coverage report for Azure Pipeline'

The first directory is for a .net core project and the second with System.DefaultWorkingDirectory is for the .Net project I was having troubles with.

To finish it off I also do a Publish:

- task: PublishCodeCoverageResults@2
  displayName: 'Publish code coverage'
  inputs:
    codeCoverageTool: 'cobertura'
    summaryFileLocation: '$(Agent.TempDirectory)\TestResults\Coverage\Reports\Cobertura.xml'

I already had this publishing task but it was not reaching since it was failing in the reportgenerator script task.

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