How to configure the Maven pom.xml file in Spring Roo projects for PIT mutation testing (see http://pitest.org/)
The information mentioned here is not yet confirmed; but the following steps lead to a correct (but maybe not sufficient or necessary) configuration.
in Spring Roo, you can with the following statements change the Maven pom.xml file:
dependency add --groupId org.pitest --artifactId pitest-maven --version 1.1.9
but this will not be sufficient.
it will add org.pitest pitest-maven 1.1.9
<!-- does this skip work 20/03/2016 15:05:02 fsp
see https://github.com/hcoles/pitest/issues/157
// configuration not recognised
// but "mvn install -DskipTests=true" is NOT executing the scripts
<configuration>
<skip>${skipTests}</skip>
</configuration>
-->
The following dependency should also be added:
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>3.3.0</version>
<scope>test</scope>
</dependency>
Add to <build> <plugins> the following
<build>
<plugins>
<!-- fsp 20/03/2016 12:38:49, this can not be added by commands in Roo -->
<!-- start for adding the unit mutation test -->
<plugin>
<groupId>org.pitest</groupId>
<artifactId>pitest-maven</artifactId>
<version>1.1.9</version>
<configuration>
<!-- targetClasses if not specified will take by default <project|groupId> -->
<targetClasses>
<!-- <param>training.mvnpitest01*</param>
-->
</targetClasses>
<!-- targetTests if not specified will take by default <project|groupId> -->
<targetTests>
<!-- <param>training.mvnpitest01*</param>
-->
</targetTests>
<!-- add verbose true (by default false) in this way to get more information if something fails with pitest -->
<verbose>false</verbose>
<!-- TODO: Check if this is required for skipping the pitests? 20/03/2016 15:39:27 Not really needed it seems-->
<!-- <skip>${skipTests}</skip> -->
<!-- this timeoutConstant is the final one we had to set, in order to get it executed without problems 20/03/2016 17:34:25 fsp -->
<timeoutConstant>30000</timeoutConstant>
<mutators>
<mutator>CONSTRUCTOR_CALLS</mutator>
<mutator>NON_VOID_METHOD_CALLS</mutator>
<mutator>CONDITIONALS_BOUNDARY</mutator>
<mutator>INCREMENTS</mutator>
<mutator>INVERT_NEGS</mutator>
<mutator>MATH</mutator>
<mutator>NEGATE_CONDITIONALS</mutator>
<mutator>RETURN_VALS</mutator>
<mutator>VOID_METHOD_CALLS</mutator>
<mutator>CONSTRUCTOR_CALLS</mutator>
<mutator>INLINE_CONSTS</mutator>
<mutator>NON_VOID_METHOD_CALLS</mutator>
<mutator>REMOVE_CONDITIONALS</mutator>
</mutators>
</configuration>
</plugin>
<!-- end of adding the unit mutation test -->
The minimal Maven command to launch a pitest is:
mvn org.pitest:pitest-maven:mutationCoverage