Maven Tycho + Jacoco: no coverage of tested classes

[thomas.lo...@gmail.com]

Hi all,

I have a set of Eclipse plugins that are compiled using the Maven Tycho plugin. Following the "Eclipse convention", tests are located in a separate module (a bundle fragment) than the tested classes. E.g. If you have a "plugin1" module than the test classes are in a separate "plugin1-test" module.
The problem I have with Jacoco is that when I execute "mvn clean verify site", the coverage report generated for the "plugin1-test" only includes the coverage of the test classes (and not the tested classes), and no coverage report is generated for "plugin1".
I googled around and found a couple of other people having the same problem, but I wasn't able to find a solution.
Can anyone help me please?
Thank you.

Thomas

[Marc R. Hoffmann]

Hi Thomas,

we have the exact same problem for the JaCoCo build: JaCoCo does not yet
support multi-module or cross-module code coverage.

What we do is to generate a combined report in a separate module using
the antrun goal, see
https://github.com/jacoco/jacoco/blob/master/org.jacoco.doc/pom.xml#L76

Cheers,
-marc

[thomas.lo...@gmail.com]

Hi Marc,

Thank you for the tip. It's quite complex and burdensome but if there is currently no other solution I will try that.
Do you know if this "cross-module-coverage" feature is on the Jacoco roadmap?

Thomas

[Marc Hoffmann]

We have a feature request for it, but currently nobody is working on this.

Regards,
-marc

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