1 /* 2 * Copyright (C) 2012 The Guava Authors 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package com.google.common.util.concurrent; 18 19 import com.google.common.collect.ForwardingObject; 20 import junit.framework.TestCase; 21 22 /** 23 * Tests for {@link ForwardingObjectTester}. 24 * 25 * @author Ben Yu 26 */ 27 public class ForwardingObjectTesterTest extends TestCase { 28 testFailsToForward()29 public void testFailsToForward() { 30 try { 31 ForwardingObjectTester.testForwardingObject(FailToForward.class); 32 } catch (AssertionError | UnsupportedOperationException expected) { 33 // UnsupportedOperationException is what we see on Android. 34 return; 35 } 36 fail("Should have thrown"); 37 } 38 39 @AndroidIncompatible // TODO(cpovirk): java.lang.IllegalAccessError: superclass not accessible testSuccessfulForwarding()40 public void testSuccessfulForwarding() { 41 ForwardingObjectTester.testForwardingObject(ForwardToDelegate.class); 42 } 43 44 private abstract static class FailToForward extends ForwardingObject implements Runnable { 45 @Override run()46 public void run() {} 47 } 48 49 private abstract static class ForwardToDelegate extends ForwardingObject implements Runnable { 50 @Override run()51 public void run() { 52 delegate().run(); 53 } 54 55 @Override delegate()56 protected abstract Runnable delegate(); 57 } 58 } 59