Paul King presents some of the tools helping one programming in Groovy: Cobertura – code coverage, CodeNarc – code style, EasyB – acceptance tests, GroovyDoc – documentation, GroovyMock/Spock – mocking and testing, Hudson – CI builds, Maven/Ant/Gant/Gradle – build files, OSGi – bundles, and Spring/Guice – dependency injection.
http://www.infoq.com/presentations/Industrial-Strength-Groovy