JaCoCo Maven plugin and test plugins

[Dezider Mesko]

Hi all,

I would like to ask, how exactly JaCoCo maven plugin works.

I have another plugin in integration test phase, and I would like to include its execution to code coverage. 

For online instrumentation I don't see any configuration in example pom file. How JaCoCo knows when to instrument? Or even better how to force JaCoCo to instrument even during integration-test phase. (for unit tests data are generated fine, for integration tests not)

Thank you!

d.

[Mirko Friedenhagen]

Hello Dezider,

jacoco-maven-plugin just sets a property argLine, which is automatically picked up by surefire and failsafe unless you did reconfigure this property yourself in your pom.
Then you set this in surefire:

<argLine>${argLine} -Xmx512m</argLine>

Note when you set jacoco.skip=true, the plugin will return an empty string, so this should not break anything.

Regards Mirko
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[Dezider Mesko]

I see,

my issue is that I'm using robotframework plugin (not surefire/failsafe) in integration tests phase. But if I understand correctly, if I would set -javaagent parameter to jybot script/command executed by robotframewok plugin it would just works, right?

Thank you very much.

d.

[Marc Hoffmann]

Hi,

correct. This is the nice thing about JaCoCo: All you need to do to
collect coverage information is to add the javaagent parameter to the
target VM.

Best regards,
-marc

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[Mirko Friedenhagen]

Hello Dezider,

you are right, maybe you may just reuse argLine, see
https://github.com/1and1/attach-qar-maven-plugin/blob/15e0938eefe85b1d1f754ace036da250bb279cb9/pom.xml#L24
for an example, setting invoker.mavenOpts to argLine reuses the agent
during runs of the maven-invoker-plugin.

Regards
Mirko

Regards Mirko
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[hurlm...@gmail.com]

Hi Marc,

I am having trouble in getting the coverage for my robot test cases using jacoco coverage engine. I am able to integrate the jacoco agent and get the jacoco reports but when I run my robot test cases I am not getting the coverage.

Here is my configuration in POM:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.15</version>
<executions>
<execution>
<id>integration-tests</id>
<goals>
<goal>integration-test</goal>
<goal>verify</goal>
</goals>
<configuration>
<argLine>${failsafeArgLine}</argLine>
<skipTests>${skip.integration.tests}</skipTests>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.robotframework</groupId>
<artifactId>robotframework-maven-plugin</artifactId>
<version>${robot.plugin.version}</version>
<executions>
<execution>
<goals>
<goal>run</goal>
</goals>
</execution>
</executions>
<configuration>
<testCasesDirectory>${project.basedir}/src/test/resources/scenarios</testCasesDirectory>
</configuration>
</plugin>

Thanks
Greg

[hurlm...@gmail.com]