Background
Sonar currently reports on the code coverage of unit tests only using the Emma code coverage tool. It is however
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towards automating all manual tests and improve the efficiency of our test base.
Jacoco
Jacoco is a code coverage tool that uses a different approach from Emma in to obtain code coverage data. Basically,
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to define inclusions and exclusions to restrict jacoco to mifos code.
Getting the tools
- Download jacoco
- Download sonar jacoco plugin
- Download sonar
- Insert the jacoco plugin in the $SONAR_HOME/extensions/plugin directory
Doing the business (getting coverage report - integration tests)
- Modify the pom.xml in $MIFOS_HOME/applicaton directory by adding the following line to maven-surefire-plugin configuration element
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| Code Block |
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mvn -Dsonar.jacoco.itReportPath="/home/kojo/jackpath/to/coverage/dump/jacoco.exec" sonar:sonar -Dsonar.dynamicAnalysis |
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- Go to sonar web interface and click on 'configure widgets' to add IT coverage widget
Miscellaneous
Jacoco Ant tasks - There exist ant tasks in the jacoco distribution that can be used were using java agent creates problems.
Debugging - Code coverage dumps can be inspected by passing the dump file as an argument to ExecDump.java found in the examples folder in the jacoco distribution.
References
- [measuring code coverage for integration tests using sonar|http://www.sonarsource.org/measure-code-coverage-by-integration-tests-with-sonar/]
- [Java agent|http://download.oracle.com/javase/6/docs/api/java/lang/instrument/package-summary.html]
- [Jacoco|http://www.eclemma.org/jacoco]