1 /* 2 * Copyright (c) 2017, 2018, 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 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 package jdk.internal.vm.compiler.collections.test; 42 43 import jdk.internal.vm.compiler.collections.Pair; 44 import org.junit.Assert; 45 import org.junit.Test; 46 47 public class PairTest { 48 49 @Test 50 public void testCreate() { 51 Assert.assertEquals(Pair.create(null, null), Pair.empty()); 52 Assert.assertNotEquals(Pair.create(null, null), null); 53 Assert.assertEquals(Pair.createLeft(null), Pair.empty()); 54 Assert.assertEquals(Pair.createRight(null), Pair.empty()); 55 Assert.assertEquals(Pair.create(1, null), Pair.createLeft(1)); 56 Assert.assertEquals(Pair.create(null, 1), Pair.createRight(1)); 57 } 58 59 @Test 60 public void testUtilities() { 61 Pair<Integer, Integer> pair = Pair.create(1, null); 62 Assert.assertEquals(pair.getLeft(), Integer.valueOf(1)); 63 Assert.assertEquals(pair.getRight(), null); 64 Assert.assertEquals(pair.toString(), "(1, null)"); 65 Assert.assertEquals(pair.hashCode(), Pair.createLeft(1).hashCode()); 66 } 67 68 }