src/test/groovy/bugs/Groovy4857Bug.groovy

/*
 * Copyright 2003-2011 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 groovy.bugs

/**
 * @author Tim Yates
 * @author Trygve Amundsens
 */
class Groovy4857Bug extends GroovyTestCase {
    void testMissingMethodNotUnsupportedOperation() {
        try {
            new GroovyShell().evaluate """
                interface A { def getValue() }

                class B { }

                def test = [ getValue: { 'getValue() called' } ] as A

                def b = new B()

                b.call(test)
            """
            fail('The compilation should have failed with No signature of method: B.call()')
        } catch (e) {
            assert e.message.contains('No signature of method: B.call()')
            assert e.class.name == 'groovy.lang.MissingMethodException'
        }
    }

    void testTrygveAmundsensExample() {
        def val = new GroovyShell().evaluate """
            [run: {}] as Runnable
        """

        assert val.toString()
        assert val instanceof Runnable
    }
}