Groovy example source code file (MetaClassTest.groovy)

This example Groovy source code file (MetaClassTest.groovy) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" ^TM.

Java - Groovy tags/keywords

foo, foo, groovytestcase, groovytestcase, metaclass, metaclass, metaclasstest, metaclasstest

The Groovy MetaClassTest.groovy source code

/*
 * Copyright 2003-2010 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.codehaus.groovy.classgen

class MetaClassTest extends GroovyTestCase {

    void testMetaClass() {
        test(this)
        test { print(it) }
    }

    protected def test(object) {
        def metaClass = object.metaClass
        assert metaClass != null

        println(metaClass)

        def classNode = metaClass.getClassNode()
        assert classNode != null

        println(classNode)

        def name = object.getClass().getName()
        assert classNode.name == name
    }

    void testMetaClassDefinition() {
        assertScript """
            class Foo {
                MetaClass metaClass
            } 
            def foo = new Foo()
            assert foo.@metaClass != null
            """
    }
}