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Groovy example source code file (ClosureAsParamTest.groovy)
The Groovy ClosureAsParamTest.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 groovy import java.util.concurrent.Callable /** * Tests calling methods with Closures as parameters. * * @author <a href="mailto:james@coredevelopers.net">James Strachan * @author Paul King * @version $Revision: 20481 $ */ class ClosureAsParamTest extends GroovyTestCase { int x void testSimpleBlockCall() { assert 'hello!' == assertClosure({ owner -> owner }) } void testRunnable() { x = 0 assertRunnable({ x = 1 }) assert x == 1 } void testCallable() { x = 0 assert 'Callable' == assertCallable({ x = 2; 'Callable' }) assert x == 2 } void testRunnablePreferred() { x = 0 assertRunnableAndCallable({ x = 3; 'result' }) assert x == 6 } void testCallableCoercion() { x = 0 assert 'result' == assertRunnableAndCallable({ x = 3; 'result' } as Callable) assert x == 9 } def assertClosure(Closure block) { assert block != null block.call("hello!") } def assertRunnable(Runnable r) { r.run() } def assertCallable(Callable c) { c.call() } def assertRunnableAndCallable(Runnable r) { r.run() x *= 2 } def assertRunnableAndCallable(Callable c) { def result = c.call() x *= 3 result } } Other Groovy examples (source code examples)Here is a short list of links related to this Groovy ClosureAsParamTest.groovy source code file: |
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