Maven plugin fails in generating mutants for a class in the dependency

[Guglielmo De Angelis]

Hi,

in the example at:

 * https://github.com/gulyx/pitExample/blob/f2c368c254e378520e1e58c3d368d080af02df77/pom.xml#L85

I am trying to use PIT (Maven Plugin) in order to mutate the class Fraction referred by means of a dependency declared in the project.

By running:

 * mvn -Pmutation clean verify org.pitest:pitest-maven:mutationCoverage

PIT fails by reporting:

 * [ERROR] Failed to execute goal org.pitest:pitest-maven:1.15.8:mutationCoverage (default-cli) on project pitExample: Execution default-cli of goal org.pitest:pitest-maven:1.15.8:mutationCoverage failed: No mutations found. This probably means there is an issue with either the supplied classpath or filters.

I am wondering if it is possible to mutate a binary class only referred in the classpath ... but as far I understood from the documentation:

 * https://pitest.org/faq/

it should be possible.

Do you have any suggestion on how to proceed?

Thanks

Gulyx

[Henry Coles]

Pitest will only mutate code within the current project, it's not possible to mutate dependencies.

Henry

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[Guglielmo De Angelis]

Herny,
thanks for the prompt feedback.

I found a workaround in order to achieve the goal I described.
Specifically here:

 * https://github.com/gulyx/pitExample/blob/13c05970b78ddb9d6719196ea1b52edac0a46763/pom.xml#L85
I used the maven-dependency-plugin, so that to unpack a specific dependency within the (customizable) folder "target/classes".
This way PIT is able to mutate also the code of the specific dependencies that have been unpacked.

The example can run by launching:

 * mvn -Pmutation clean verify org.pitest:pitest-maven:mutationCoverage

Gulyx