1 /*
2  * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * This code is free software; you can redistribute it and/or modify it
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7  * published by the Free Software Foundation.
8  *
9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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22  */
23 
24 import java.util.concurrent.atomic.AtomicReference;
25 import org.testng.annotations.Test;
26 import static org.testng.Assert.*;
27 
28 /*
29  * @test
30  * @summary Test Map default methods
31  * @run testng AtomicReferenceTest
32  * @author Jim Gish <jim.gish@oracle.com>
33  */
34 public class AtomicReferenceTest {
35 
36     /**
37      * Test of updateAndGet method, of class AtomicReference.
38      */
39     @Test
testUpdateAndGet()40     public void testUpdateAndGet() {
41         AtomicReference<Integer> instance = new AtomicReference<>(3);
42         assertEquals((int) instance.get(), 3);
43         assertEquals((int) instance.updateAndGet(x -> x + 2), 5);
44         assertEquals((int) instance.get(), 5);
45     }
46 
47     /**
48      * Test of getAndUpdate method, of class AtomicReference.
49      */
50     @Test
testGetAndUpdate()51     public void testGetAndUpdate() {
52         AtomicReference<Integer> instance = new AtomicReference<>(3);
53         assertEquals((int) instance.get(), 3);
54         assertEquals((int) instance.getAndUpdate(x -> x + 3), 3);
55         assertEquals((int) instance.get(), 6);
56     }
57 }
58