Home | History | Annotate | Download | only in outside
      1 /*
      2  * Copyright (C) 2011 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.eventbus.outside;
     18 
     19 import com.google.common.eventbus.EventBus;
     20 import com.google.common.eventbus.Subscribe;
     21 
     22 import junit.framework.TestCase;
     23 
     24 import java.util.concurrent.atomic.AtomicInteger;
     25 import java.util.concurrent.atomic.AtomicReference;
     26 
     27 /**
     28  * Test cases for {@code EventBus} that must not be in the same package.
     29  *
     30  * @author Louis Wasserman
     31  */
     32 public class OutsideEventBusTest extends TestCase {
     33 
     34   /*
     35    * If you do this test from common.eventbus.EventBusTest, it doesn't actually test the behavior.
     36    * That is, even if exactly the same method works from inside the common.eventbus package tests,
     37    * it can fail here.
     38    */
     39   public void testAnonymous() {
     40     final AtomicReference<String> holder = new AtomicReference<String>();
     41     final AtomicInteger deliveries = new AtomicInteger();
     42     EventBus bus = new EventBus();
     43     bus.register(new Object() {
     44       @Subscribe
     45       public void accept(String str) {
     46         holder.set(str);
     47         deliveries.incrementAndGet();
     48       }
     49     });
     50 
     51     String EVENT = "Hello!";
     52     bus.post(EVENT);
     53 
     54     assertEquals("Only one event should be delivered.", 1, deliveries.get());
     55     assertEquals("Correct string should be delivered.", EVENT, holder.get());
     56   }
     57 }
     58