Packages 
Package Description
spock.config
Classes modeling Spock's configuration options.
spock.guice
Integration with Guice 2/3.
spock.lang
The core specification language.
spock.mock  
spock.unitils
Integration with Unitils.
spock.util  
spock.util.concurrent
Utilities for testing concurrent code.
spock.util.environment
Utilities for dealing with the test environment.
spock.util.io  
spock.util.matcher
Utilities for using (Hamcrest) matchers.
spock.util.mop
Utilities related to Groovy meta programming.
spock.util.time