Azure-devops-docs: One code coverage result from many test's project in solution

[igor-moskvitin]

Is it possible to compose one coverage result from many coverage.cobertura.xml files?
Now have a issue like Multiple file or directory matches were found. Using the first match: D:\TFS\...\coverage.cobertura.xml

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Document Details

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• ID: c6ac4ff4-9839-6a6d-8d20-a25084d221ef
• Version Independent ID: bd09f139-8e69-8ea1-6671-b7bba8e17c23
• Content: Publish Code Coverage Results from a VSTS or TFS build
• Content Source: docs/pipelines/tasks/test/publish-code-coverage-results.md
• Product: devops
• GitHub Login: @erickson-doug
• Microsoft Alias: dastahel

[alexhomer1]

Thank you for your feedback. I have passed this on to the product team for advice.

[alexhomer1]

The product team tell me that merging multiple cobertura xml files is currently not supported. However, we are taking up work to evolve code coverage integration in VSTS, and will evaluate this in Q3 of 2018.

[skorunka]

Hi, any plans on the above feature request? thanks.

[satrapu]

The product team tell me that merging multiple cobertura xml files is currently not supported. However, we are taking up work to evolve code coverage integration in VSTS, and will evaluate this in Q3 of 2018.

ReportGenerator can merge multiple coverage files into one, e.g. merge several Cobertura XML files into just one Cobertura XML file, as seen here.

Here is an Azure Pipelines fragment used for generating coverage files in Cobertura format for a series of unit and integration tests run via xUnit and coverlet:
````yaml

• task: DotNetCoreCLI@2
  displayName: Run unit tests
  name: run_unit_tests
  enabled: True
  inputs:
  command: custom
  custom: test
  projects: ./Tests/UnitTests/TodoWebApp.UnitTests/TodoWebApp.UnitTests.csproj
  arguments: '--configuration ${{ parameters.build.configuration }} --test-adapter-path "." --logger "xunit;LogFilePath=$(Build.SourcesDirectory)/.TestResults/TodoWebApp.UnitTests.xunit.xml" /p:CollectCoverage=True /p:CoverletOutputFormat=cobertura /p:CoverletOutput="$(Build.SourcesDirectory)/.CoverageResults/TodoWebApp.UnitTests.cobertura.xml"'

• task: DotNetCoreCLI@2
  displayName: Run integration tests
  name: run_integration_tests
  enabled: True
  inputs:
  command: custom
  custom: test
  projects: ./Tests/IntegrationTests/TodoWebApp.IntegrationTests/TodoWebApp.IntegrationTests.csproj
  arguments: '--configuration ${{ parameters.build.configuration }} --test-adapter-path "." --logger "xunit;LogFilePath=$(Build.SourcesDirectory)/.TestResults/TodoWebApp.IntegrationTests.xunit.xml" /p:CollectCoverage=True /p:CoverletOutputFormat=cobertura /p:CoverletOutput="$(Build.SourcesDirectory)/.CoverageResults/TodoWebApp.IntegrationTests.cobertura.xml"'

• script: 'reportgenerator "-reports:$(Build.SourcesDirectory)/.CoverageResults/*.cobertura.xml" "-targetdir:$(Build.SourcesDirectory)/.CoverageResults/Report" "-reporttypes:Cobertura;HtmlInline"'
  displayName: Generate code coverage report
  name: generate_code_coverage_report
  enabled: True
  ````

The resulted file will be created here: $(Build.SourcesDirectory)/.CoverageResults/Report/Cobertura.xml and the build dashboard will include coverage from both types of tests, unit and integration.
The full Azure Pipelines YAML file can be found here.

[shashankvivek]

The product team tell me that merging multiple cobertura xml files is currently not supported. However, we are taking up work to evolve code coverage integration in VSTS, and will evaluate this in Q3 of 2018.

any updated ?

[johncrim]

@alexhomer1 - it appears that closing this was premature. This issue is still needed. Would you prefer duplicate issues be created?