Plugins

Sometimes there's a need for special integration with some tools that are more complex In this situation plugins are necessary.

Pitest#

The Mutation Testing tool Pitest is integrated via a kotest plugin. After configuring the Pitest extension, add the kotest-plugins-pitest module to your dependencies as well:

testImplementation("io.kotest:kotest-plugins-pitest:<version>")

After doing that, tell Pitest that we're going to use Kotest as a testPlugin:

// Assuming that you have already configured the Gradle/Maven extension
configure<PitestPluginExtension> {
    testPlugin.set("Kotest")    // <-- Telling Pitest that we're using Kotest
    targetClasses.set(listOf("my.company.package.*"))
}

This should set everything up, and running ./gradlew pitest will generate reports in the way you configured.