Publish Code Coverage Results task

Azure Pipelines | Azure DevOps Server 2019 | TFS 2018 | TFS 2017 | TFS 2015

Use this task in a build pipeline to publish code coverage results produced when running tests to Azure Pipelines or TFS in order to obtain coverage reporting. The task supports popular coverage result formats such as Cobertura and JaCoCo.

Tasks such as Visual Studio Test, .NET Core, Ant, Maven, Gulp, Grunt also provide the option to publish code coverage data to the pipeline. If you are using these tasks, you do not need a separate Publish Code Coverage Results task in the pipeline.



YAML snippet

# Publish code coverage results
# Publish Cobertura or JaCoCo code coverage results from a build
- task: PublishCodeCoverageResults@1
    #codeCoverageTool: 'JaCoCo' # Options: cobertura, jaCoCo
    #pathToSources: # Optional
    #reportDirectory: # Optional
    #additionalCodeCoverageFiles: # Optional
    #failIfCoverageEmpty: false # Optional

The codeCoverageTool and summaryFileLocation parameters are mandatory.

To publish code coverage results for Javascript with istanbul using YAML, see JavaScript in the Ecosystems section of these topics, which also includes examples for other languages.


Code coverage tool(Required) The tool with which code coverage results are generated. The supported formats include Cobertura and JaCoCo.
Summary file(Required) Path of the summary file containing code coverage statistics, such as line, method, and class coverage. The value may contain minimatch patterns. For example: $(System.DefaultWorkingDirectory)/MyApp//site/cobertura/coverage.xml
Report directory(Optional) Path of the code coverage HTML report directory. The report directory is published for later viewing as an artifact of the build. The value may contain minimatch patterns. For example: $(System.DefaultWorkingDirectory)/MyApp//site/cobertura
Additional files(Optional) File path pattern specifying any additional code coverage files to be published as artifacts of the build. The value may contain minimatch patterns. For example: $(System.DefaultWorkingDirectory)/*/.exec
Fail when code coverage results are missing(Optional) Available only on Azure Pipelines and TFS 2018 and later. Fail the task if code coverage did not produce any results to publish.
Control options


For apps using docker, build and tests may run inside the container, generating code coverage results within the container. In order to publish the results to the pipeline, the resulting artifacts should be to be made available to the Publish Code Coverage Results task. For reference you can see a similar example for publishing test results under Build, test, and publish results with a Docker file section for Docker.

View results

In order to view the code coverage results in the pipeline, see Review code coverage results

Open source

This task is open source on GitHub. Feedback and contributions are welcome.

Q & A

Is code coverage data merged when multiple files are provided as input to the task or multiple tasks are used in the pipeline?

At present, the code coverage reporting functionality provided by this task is limited and it does not merge coverage data. If you provide multiple files as input to the task, only the first match is considered. If you use multiple publish code coverage tasks in the pipeline, the summary and report is shown for the last task. Any previously uploaded data is ignored.

Help and support