The Mutation Testing tool Pitest is integrated with Kotest via an extension module.
After configuring Pitest,
io.kotest.extensions:kotest-extensions-pitest module to your dependencies as well:
Note: Since pitest is an extension, we use a different maven group name (io.kotest.extensions) from the core modules.
After doing that, we need to inform Pitest that we're going to use
Kotest as a
// Assuming that you have already configured the Gradle/Maven extension
// testPlugin.set("Kotest") // needed only with old PIT <1.6.7, otherwise having kotest-extensions-pitest on classpath is enough
This should set everything up, and running
./gradlew pitest will generate reports in the way you configured.