getDebug

Determines whether debugging is enabled for the test process. When enabled — debug = true} — the process is started in a suspended state, listening on port 5005. You should disable parallel test execution when debugging and you will need to reattach the debugger occasionally if you use a non-zero value for org.gradle.api.tasks.testing.Test#getForkEvery().

Since Gradle 5.6, you can configure the port and other Java debug properties via #debugOptions(Action).