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      1 /*
      2  * Copyright (C) 2009 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 junit.framework.TestCase;
     20 
     21 /**
     22  * Tests for {@link ForwardingListenableFuture}.
     23  *
     24  * @author Shardul Deo
     25  */
     26 public class ForwardingListenableFutureTest extends TestCase {
     27 
     28   private SettableFuture<String> delegate;
     29   private ListenableFuture<String> forwardingFuture;
     30 
     31   private ListenableFutureTester tester;
     32 
     33   @Override
     34   protected void setUp() throws Exception {
     35     super.setUp();
     36 
     37     delegate = SettableFuture.create();
     38     forwardingFuture = new ForwardingListenableFuture<String>() {
     39       @Override
     40       protected ListenableFuture<String> delegate() {
     41         return delegate;
     42       }
     43     };
     44     tester = new ListenableFutureTester(forwardingFuture);
     45     tester.setUp();
     46   }
     47 
     48   @Override
     49   protected void tearDown() throws Exception {
     50     tester.tearDown();
     51     super.tearDown();
     52   }
     53 
     54   public void testCompletedFuture() throws Exception {
     55     delegate.set("foo");
     56     tester.testCompletedFuture("foo");
     57   }
     58 
     59   public void testCancelledFuture() throws Exception {
     60     delegate.cancel(true); // parameter is ignored
     61     tester.testCancelledFuture();
     62   }
     63 
     64   public void testFailedFuture() throws Exception {
     65     delegate.setException(new Exception("failed"));
     66     tester.testFailedFuture("failed");
     67   }
     68 }
     69