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    */
testAnonymous()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