1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one
3 * or more contributor license agreements. See the NOTICE file
4 * distributed with this work for additional information
5 * regarding copyright ownership. The ASF licenses this file
6 * to you under the Apache License, Version 2.0 (the
7 * "License"); you may not use this file except in compliance
8 * with the License. You may obtain a copy of the License at
9 *
10 * http://www.apache.org/licenses/LICENSE-2.0
11 *
12 * Unless required by applicable law or agreed to in writing, software
13 * distributed under the License is distributed on an "AS IS" BASIS,
14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
15 * See the License for the specific language governing permissions and
16 * limitations under the License.
17 */
18
19 package org.apache.hadoop.hbase.zookeeper;
20
21 import java.util.concurrent.atomic.AtomicReference;
22
23 import org.apache.hadoop.hbase.testclassification.SmallTests;
24 import org.junit.Assert;
25 import org.junit.Test;
26 import org.junit.experimental.categories.Category;
27
28 @Category(SmallTests.class)
29 public class TestInstancePending {
30 @Test(timeout = 1000)
31 public void test() throws Exception {
32 final InstancePending<String> pending = new InstancePending<String>();
33 final AtomicReference<String> getResultRef = new AtomicReference<String>();
34
35 new Thread() {
36 @Override
37 public void run() {
38 getResultRef.set(pending.get());
39 }
40 }.start();
41
42 Thread.sleep(100);
43 Assert.assertNull(getResultRef.get());
44
45 pending.prepare("abc");
46 Thread.sleep(100);
47 Assert.assertEquals("abc", getResultRef.get());
48 }
49 }