1 /* 2 * Copyright (c) 2012, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 package org.openjdk.tests.java.util.functions; 26 27 import java.util.concurrent.atomic.AtomicLong; 28 import java.util.functions.LongUnaryOperator; 29 import org.testng.annotations.AfterMethod; 30 import org.testng.annotations.AfterClass; 31 import org.testng.annotations.BeforeMethod; 32 import org.testng.annotations.BeforeClass; 33 import org.testng.annotations.Test; 34 import static org.testng.Assert.*; 35 36 /** 37 * 38 * @author Jim Gish <jim.gish@oracle.com> 39 */ 40 @Test 41 public class LongUnaryOperatorTest { 42 43 public LongUnaryOperatorTest() { 44 } 45 46 47 /** 48 * Test of operate method, of class LongUnaryOperator. 49 */ 50 public void testOperate() { 51 long operand = 0L; 52 LongUnaryOperator instance = new LongUnaryOperatorImpl(); 53 long expResult = 3L; 54 long result = instance.operate(operand); 55 assertEquals(result, expResult); 56 } 57 58 public void testUpdateOps() { 59 AtomicLong atomLong = new AtomicLong(3); 60 // make sure we the updated value is returned 61 assertEquals( atomLong.updateAndGet(x -> x + 1), 4 ); 62 // then the previous value is returned 63 assertEquals( atomLong.getAndUpdate(x -> x + 1), 4 ); 64 // finally, verify that the update was successful 65 assertEquals( atomLong.get(), 5 ); 66 }; 67 68 public class LongUnaryOperatorImpl implements LongUnaryOperator { 69 70 public long operate(long operand) { 71 // inc by 3 72 return operand + 3L; 73 } 74 } 75 }