class AdministrativeUserServiceSpec extends Specification {
def publisher = Mock(EventPublisher)
def administrators = new AdministrativeUserService(publisher)

def “should fire an event of type user_added when new user is added”() {
def user = new User()

when:
administrators.add(user)

then:
1 * publisher.publish({ it.type == EventType.USER_ADDED })
}
}