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 6 * under the terms of the GNU General Public License version 2 only, as 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 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 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