src/test/groovy/bugs/Groovy3948Bug.groovy

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 *  or more contributor license agreements.  See the NOTICE file
 *  distributed with this work for additional information
 *  regarding copyright ownership.  The ASF licenses this file
 *  to you 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 groovy.bugs

import groovy.test.GroovyTestCase

class Groovy3948Bug extends GroovyTestCase {

    void testBug1() {
        Expando.metaClass.foo = { -> delegate.bar() }

        def e = new Expando()

        e.metaClass.bar = { -> 1 }
        assert e.foo() == 1

        e.metaClass.bar = { -> 2 }
        assert e.foo() == 2
    }

    void testBug2() {
        Foo f = new Foo()
        def results = []
        for (idx in 1..3) {
            def sound = 'woof' * idx
            def x = { sound }
            f.metaClass.bark = x
            results << f.bark()
        }
        assert results == ['woof', 'woofwoof', 'woofwoofwoof']
    }

    private static class Foo { }
}