Creating collections in BeanBuilder

BeanBuilderTests.groovy

import static org.junit.Assert.*;

import org.springframework.beans.factory.config.ListFactoryBean;

import grails.spring.BeanBuilder;
import grails.test.GrailsUnitTestCase;

class BeanBuilderTests extends GrailsUnitTestCase {

    void testListCreation() {
        def bb = new BeanBuilder()
        bb.beans {
            myList(ListFactoryBean) {
                sourceList = [String.class, Integer.class]
            }
        }

        def appCtx = bb.createApplicationContext()
        def mlist = appCtx.getBean("myList");

        assertEquals 2, mlist.size()
    }

    void testListCreationUsingNamespace() {
        def bb = new BeanBuilder()
        bb.beans {
            xmlns util:"http://www.springframework.org/schema/util"

            util.list(id: "myList", "list-class": LinkedList.name) {
                value Integer.class
                value String.class
            }

            def values = [ Integer.class, String.class, Integer.class ]
            util.set(id: "mySet", "set-class": TreeSet.name) {
                values.each { 
                    value it
                }
            }

            anotherList(ArrayList, ref('mySet'))
        }

        def appCtx = bb.createApplicationContext()
        def mlist = appCtx.getBean("myList");
        def mset  = appCtx.getBean("mySet");
        def alist = appCtx.getBean("anotherList");
 
        assertEquals 2, mlist.size()
        assertEquals 2, mset.size()
        assertEquals 2, alist.size()
    }
}