Groovy example source code file (InterfaceConversionTest.groovy)

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Java - Groovy tags/keywords

groovytestcase, groovytestcase, interfaceconversiontest, interfaceconversiontest, interfaceconversiontestfoo, interfaceconversiontestfoo, object, object

The Groovy InterfaceConversionTest.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.runtime

class InterfaceConversionTest extends GroovyTestCase {

    void testClosureConversion() {
        def c1 = {Object[] args -> args?.length}
        def c2 = c1 as InterfaceConversionTestFoo
        assert !(c1 instanceof InterfaceConversionTestFoo)
        assert c2 instanceof InterfaceConversionTestFoo
        assert c2.a() == null
        assert c2.b(null) == 1
    }

    void testMapConversion() {
        def m1 = [a: {1}, b: {2}]
        def m2 = m1 as InterfaceConversionTestFoo

        assert !(m1 instanceof InterfaceConversionTestFoo)
        assert m2 instanceof InterfaceConversionTestFoo
        assert m2.a() == 1
        assert m2.b(null) == 2
    }
}

interface InterfaceConversionTestFoo {
    def a()

    def b(Integer i)
}