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This page describes how to enable and configure Atlassian's Clover add-on for a job in Bamboo.

When Bamboo is integrated with Clover, you can:

  • View code-coverage details (i.e. the percentage of code covered by tests) for each build result
  • View code-coverage trends for a job over a period of time
  • View the code-coverage summary for the job.

 

On this page:

Related pages:


Atlassian Blogs:

Enable the Clover add-on

  1. Navigate to the desired job, as described on Configuring jobs.
  2. Choose Actions > Configure Job.
  3. Click the Miscellaneous tab.

  4. Select Use Clover to collect Code Coverage for this build and complete the following settings:

 

SettingDescription
Automatically integrate Clover into this buildYou will need to provide a Clover license (evaluation licenses are available), unless this has been configured globally in the Administration panel (Administration > Plugins > Clover Plugin).
Generate a Clover Historical ReportDisplays the current coverage results compared with previous Clover code coverage reports.
Generate a JSON reportProvides the Clover results in a format ready for embedding into applications or external report views.
Use plan-defined Clover license keyOverride the global Clover license for this particular plan.
Clover is already integrated into this build

Use this option when you already have Clover-for-Ant, Clover-for-Maven or other Clover integration configured to generate a report.

Clover XML Location

Specify the location where Bamboo will look for the XML report file from Clover. Please specify the file path relative to your plan's root directory (e.g /home/bamboouser/bamboo-home/xml-data/build-dir/MY_PLAN/), i.e. do not specify an absolute path.

 target/site/clover/clover.xml

Screenshot: Settings to enable Clover for a job

 

As Clover integration (automatic and manual) produces instrumented classes, we recommend to ensure that your job does not install them to production (for instance: 'mvn deploy' to public repository, 'scp' to an application server running on production, etc ...). Having instrumented code in such location is usually not desired.

Common practices to ensure proper separation of instrumented and non-instrumented classes are:

  • create a dedicated plan or job with Clover integration enabled
  • enable automatic Clover integration for jobs running tests only (e.g. "mvn verify")
  • use different location of local artifact cache if you need to install artifacts (e.g. ~/.m2/repository-clover and "mvn install")
  • use different URL for uploading artifacts if necessary (e.g. a separate repository for "mvn deploy")

 

Automatic Clover integration

Automatic integration works with Ant, Maven 2.x, Maven 3.x and Grails tasks:

  1. Check Use Clover to collect Code Coverage for this build in the Clover Code Coverage settings.
  2. Select Automatically integrate Clover into this build.
  3. Enter the global license key for Clover (go to Administration > Plugins > Clover Plugin), or enable Use plan-defined Clover license key and paste the key into the text field that appears.

Additionally, you can:

  • Select Generate a Clover Historical Report to compare the current coverage results with previous Clover code coverage reports.
  • Select Generate a JSON report to get the Clover results in a format ready for embedding into applications or external report views.

 When automatic Clover integration is enabled, Bamboo will, initially:

  • Create an artifact named Clover Report (System), which will be visible on the 'Artifacts' tab for the job.

and during every build:

  • Extract the Clover licence (either the global or plan license key) into a temporary file and pass it to:
    • an Ant task as -Dclover.license.path=/<bamboo-home>/xml-data/build-dir/<your-job>/.clover/clover.license
    • a Maven task as -Dmaven.clover.licenseLocation=/<bamboo-home>/xml-data/build-dir/<your-job>/.clover/clover.license
  • Enhance tasks by adding
    • Ant targets
    • Maven goals like "clover2:setup verify clover2:aggregate clover2:clover"
  • Generate Clover XML and HTML reports (by default)
  • Generate statistics and charts for plan summary

 

Manual Clover integration

Manual Clover integration works with any kind of task in which Clover can be called (Ant, Maven 2.x, Maven 3.x, Command, Grails). 

  1. Check Use Clover to collect Code Coverage for this build, in the Clover Code Coverage settings.
  2. Check Clover is already integrated into this build ...
  3. Specify in  where Bamboo will look for the XML report file generated by Clover.

  4. On the 'Artifacts' tab, click Create Definition and complete the form as follows:

    NameThis should begin with with "Clover Report".
    LocationThis should point to the HTML report directory (e.g. target/site/clover)
    Copy PatternUse **/*.*

  5. Configure Clover in your build script so that it generates both XML and HTML reports.

    <clover-report initstring="target/clover/database/clover.db">			
    <current outfile="target/site/clover/clover.xml" />
    <current outfile="target/site/clover">
        <format type="html"/>
    </current>
</clover-report>
    <plugin>
    <groupId>com.atlassian.maven.plugins</groupId>
    <artifactId>maven-clover2-plugin</artifactId>
    <configuration>
        <generateHtml>true</generateHtml>
        <generateXml>true</generateXml>
    </configuration>
</plugin>

  6. Configure the Clover license in your build script or pass it as a proper task parameter in the job configuration:

    1. Save the Clover license key in a file (for example in /opt/bamboo/clover.license).
    2. Pass the location of the license key to the build task:
      • Define it in the build script, or
      • Pass it as a Java property for the Ant/Maven task in the plan configuration.
    <plugin>
    <groupId>com.atlassian.maven.plugins</groupId>
    <artifactId>maven-clover2-plugin</artifactId>
    <configuration>
        <licenseLocation>/opt/bamboo/clover.license</licenseLocation>
    </configuration>
</plugin>
    <project>
  <property name="clover.license.path" location="/opt/bamboo/clover.license"/>
  <!-- ... -->
</project>
    clean with.clover test clover.report -Dclover.license.path=/opt/bamboo/clover.license
    mvn clean clover2:setup verify clover2:aggregate clover2:clover -Dmaven.clover.licenseLocation=/opt/bamboo/clover.license

     

     

After every build, Bamboo will parse the Clover XML file and generate statistics and charts for a plan summary. The Plan summary and job summary pages will contain a "Clover" tab. 

Browsing Clover results

Clover HTML report and Clover statistics for a job: see Viewing the Clover code-coverage for a plan. 

Clover code coverage summary for a plan: see Viewing the Clover code-coverage for a build.

Clover code coverage statistics across multiple plans: see Generating reports across multiple plans.

Limit the machines that Clover runs on

If you have more remote agents than the number of machines for which Clover is licensed, you can restrict the machines on which Clover runs by using capabilities:
  1. For each of the EC2 images on which you would like to run builds with Clover, add a capability such as "clover=true" to the configuration for the image.
    To do this, go to Administration > Elastic Bamboo > Configuration. Select the elastic image and click Add Capability.
  2. Now, add a matching requirement, such as "clover=true", to the configuration for each job.
    To do this, go to Actions > Configure Plan > Jobs. Select the job where Clover runs and click Requirements and then Add Extra Requirement.

Troubleshooting

Automatic or manual Clover integration and spawned processes

Using automatic Clover integration or adding a dependency to the maven-clover2-plugin manually is usually sufficient.

However, if your build spawns another JVM process (for example: unit tests executed in a forked JVM, tests in the container instantiated on the fly, tests calling code deployed on another server), you must manually add the dependency to the Clover JAR for these spawned processes.

See NoClassDefFoundError com_atlassian_clover/CoverageRecorder KB article.

Automatic Clover integration and building in a subdirectory

In case you perform a build in a subdirectory (for instance, in the Maven Task configuration you have the "Working sub directory" field set) and you have automatic Clover integration, you may need to correct the Location in the "Clover Report (System)" artifact. Otherwise, an HTML report may be empty as automatic Clover integration uses the default path (for instance, the "target/site/clover" in case of integration with Maven). This bug has been fixed in Bamboo 5.7.

Automatic Clover integration and multi-module Maven projects

If you have a multi-module Maven project with dependencies between modules and use Automatic Clover integration, it can happen that an instrumented JAR of the dependent artifact will be taken for test execution in a build phase where Clover was not enabled yet. See BAM-13208 for more details. In such case, we recommend the following:

  • create a separate Job in which automatic Clover integration is enabled
  • create a Maven task in this job, which will do nothing (call the "clean" goal, for instance)
  • Bamboo will automatically add Clover-related goals (clover2:setup verify clover2:aggregate clover2:clover)


 

 

 

 

 

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